Cloud Gate
Encyclopedia
Cloud Gate, a public
sculpture by Indian-born British artist Anish Kapoor
, is the centerpiece of the AT&T Plaza
in Millennium Park
within the Loop
community area
of Chicago
, Illinois
, United States. The sculpture and AT&T Plaza are located on top of Park Grill
, between the Chase Promenade
and McCormick Tribune Plaza & Ice Rink
. Constructed between 2004 and 2006, the sculpture is nicknamed "The Bean" because of its bean-like shape. Made up of 168 stainless steel
plates welded together, its highly polished exterior has no visible seams. It is 33 by, and weighs 110 ST (100 t; 98 LT).
Said to have been inspired by liquid mercury
, the sculpture's surface reflects and distorts the city's skyline. Visitors are able to walk around and under Cloud Gates 12 feet (3.7 m) high arch. On the underside is the "omphalos" (Greek for "navel"), a concave chamber that warps and multiplies reflections. The sculpture builds upon many of Kapoor's artistic themes, and is popular with tourists as a photo-taking opportunity for its unique reflective properties.
The sculpture was selected during a design competition. After Kapoor's design was chosen, numerous technological concerns regarding the design's construction and assembly arose, in addition to concerns regarding the sculpture's upkeep and maintenance. Various experts were consulted, some of whom believed the design could not be implemented. Eventually, a feasible method was found, but the sculpture's construction fell behind schedule. It was unveiled in an incomplete form during the Millennium Park grand opening celebration in 2004, before being concealed again while it was completed. Cloud Gate was formally dedicated on May 15, 2006, and has since gained considerable popularity, both domestically and internationally.
File:Millennium Park Map labels.png|Image map
of Millennium Park. (Each feature or label is link
ed.) |alt=Rectangular map of a park about 1.5 times as wide as it is tall. The top half is dominated by the Pritzker Pavilion and Great Lawn. The lower half is divided into three roughly equal sections: (left to right) Wrigley Square, McCormick Tribune Plaza, and Crown Fountain. North is to the left.|400px|thumb|right
rect 51 18 145 80 McDonald's Cycle Center
rect 338 2 496 94BP Pedestrian Bridge
rect 497 62 536 101BP Pedestrian Bridge
rect 497 6 631 34 Columbus Drive
rect 10 88 154 104 Exelon Pavilion NE
rect 47 108 79 131 Exelon Pavilion NE
rect 619 95 754 112 Exelon Pavilion SE
rect 728 113 759 135 Exelon Pavilion SE
rect 10 246 166 263 Exelon Pavilion NW
rect 47 265 78 288 Exelon Pavilion NW
rect 613 243 762 258 Exelon Pavilion SW
rect 736 260 757 275 Exelon Pavilion SW
rect 44 149 174 229 Harris Theater
rect 175 103 572 288 Jay Pritzker Pavilion
rect 573 134 757 238 Lurie Garden
rect 572 311 718 329 Nichols Bridgeway
rect 516 298 777 306 Nichols Bridgeway
rect 58 350 207 396 Chase Promenade North
rect 291 350 453 396 Chase Promenade Central
rect 537 350 687 396 Chase Promenade South
rect 313 397 431 424 AT&T Plaza
rect 37 434 227 473 Boeing Gallery North
rect 516 433 757 469 Boeing Gallery South
rect 337 426 416 470 Cloud Gate
rect 60 486 216 546 Wrigley Square
rect 287 477 457 543 McCormick Tribune Plaza & Ice Rink
rect 557 488 727 543 Crown Fountain
rect 308 567 439 583 Michigan Avenue
rect 1 316 23 442 Randolph Street
desc bottom-left
Lying between Lake Michigan
to the east and the Loop to the west, Grant Park
has been Chicago's front yard since the mid-19th century. Its northwest corner, north of Monroe Street and the Art Institute
, east of Michigan Avenue
, south of Randolph Street
, and west of Columbus Drive
, had been Illinois Central
rail yards and parking lots until 1997, when it was made available for development by the city as Millennium Park
. For 2007, the park was Chicago's second largest tourist attraction, trailing only Navy Pier
.
In 1999, Millennium Park officials and a group of art collectors, curator
s and architect
s reviewed the artistic works of 30 different artists and asked two for proposals. American artist Jeff Koons
submitted a proposal to erect a permanent 150 feet (45.7 m) sculpture of a playground slide
; his glass and steel design featured an observation deck
90 feet (27.4 m) above the ground that was accessible via an elevator. The committee chose the second design by internationally acclaimed artist Anish Kapoor
. Measuring 33 by and weighing 110 ST (100 t; 98 LT), the proposal featured a seamless, stainless steel
surface inspired by liquid mercury
. This mirror-like surface would reflect the Chicago skyline, but its elliptical shape would distort and twist the reflected image. As visitors walk around the structure, its surface acts like a fun-house mirror
as it distorts their reflections.
On the underside of the sculpture is the omphalos
, an indentation whose mirrored surface provides multiple reflections of any subject situated beneath it. The apex of the omphalos is 27 feet (8.2 m) above the ground. The concave underside allows visitors to walk underneath to see the omphalos, and through its arch to the other side so that they view the entire structure. During the grand opening week in July 2004, press reports described the omphalos as the "spoon-like underbelly". The stainless steel sculpture was originally envisioned as the centerpiece of the Lurie Garden
at the southeast corner of the park. However, Park officials believed the piece was too large for the Lurie Garden and decided to locate it at AT&T Plaza
, despite Kapoor's objections. Skyscraper
s to the north along East Randolph Street, including The Heritage
, the Smurfit-Stone Building
, Two Prudential Plaza
, One Prudential Plaza
, and Aon Center
are visible, reflected on both the east and west sides of the sculpture.
Although Kapoor does not draw with computers, computer modeling was essential to the process of analyzing the complex form, which created numerous issues. Being outside, concerns arose that it might retain and conduct heat in a way that would make it too hot to touch during the summer and so cold that one's tongue might stick to it during the winter. The extreme temperature variation between seasons was also feared to weaken the structure. Graffiti
, bird droppings and fingerprint
s were also potential problems, as they would affect the aesthetics of the surface. The most pressing issue was the need to create a single seamless
exterior for the external shell, a feat architect Norman Foster
once believed to be nearly impossible.
While the sculpture was being constructed, public and media outlets nicknamed it "The Bean" because of its leguminous shape, a name that Kapoor described as "completely stupid". Months later, Kapoor officially named the piece "Cloud Gate". Critical reviews describe the sculpture as a passage between realms. Three-quarters of the sculpture's external surface reflects the sky and the name refers to it acting as a type of gate that helps bridge the space between the sky and the viewer. The sculpture and plaza are sometimes referred to jointly as "Cloud Gate on the AT&T Plaza". It is Kapoor's first public outdoor work in the United States, and is the work by which he is best known in the country according to the Financial Times
.
The British engineering firm Atelier One
and freelance engineer Chris Hornzee-Jones (who later went on to form the engineering firm Aerotrope in 2005) provided the sculpture's structural design, and Performance Structures, Inc. (PSI) was chosen to fabricate
it because of their ability to produce nearly invisible welds
. The project began with PSI attempting to recreate the design in miniature. A high-density polyurethane
foam model was selected by Kapoor, which was then used to design the final structure, including the interior structural components. Initially, PSI planned to build and assemble the sculpture in Oakland, California
, and ship it to Chicago through the Panama Canal
and St. Lawrence Seaway. However, this plan was discarded after park officials deemed it too risky, so the decision was made to transport the individual panels by truck and to assemble the structure on-site, a task undertaken by MTH Industries.
The sculpture's weight raised concerns. Estimating the thickness of the steel needed to create the sculpture's desired aesthetics before fabrication was difficult. Cloud Gate was originally estimated to weigh 60 ST (54 t; 54 LT) when completed. However, the final figure was almost twice as heavy at 110 ST (100 t; 98 LT). This extra weight required engineers to reconsider the sculpture's supporting structures. The roof of the Park Grill
, upon which Cloud Gate sits, had to be built strong enough to bear the weight. The large retaining wall separating Chicago's Metra
train tracks from the North Grant Park
garage supports much of the weight of the sculpture and forms the back side of the restaurant. This wall, along with the rest of the garage's foundation, required additional bracing before the piece was erected. Cloud Gate is further buttress
ed by lateral members underneath the plaza that are anchored to the sculpture's interior structure by tie rod
s.
Inside Cloud Gate' s polished exterior shell are several steel structures that keep the sculpture standing. The first structural pieces, two type 304 stainless steel rings, were put into place in February 2004. As construction continued, crisscrossing pipe truss
es were assembled between the two rings. The trusses and supporting structures were only present for the construction phases. The finished sculpture has no inner bracing. The supporting structural components were designed and constructed to ensure that no specific point was overloaded, and to avoid producing unwanted indentations on the exterior shell. The frame was also designed to expand and contract with the sculpture as temperatures fluctuate. As a result, the two large rings supporting the sculpture move independently of each other, allowing the shell to move independently of the rings.
When Cloud Gates interior components were completed, construction crews prepared to work on the outer shell; this comprises 168 stainless steel panels, each 3/8 in thick and weighing 1000 to 2000 lb (453.6 to 907.2 kg). They were fabricated using three-dimensional modeling software. Computers and robots were essential in the bending and shaping of the plates, which was performed by English wheel
and a robotic scanning device. Metal stiffeners were welded to each panel's interior face to provide a small degree of rigidity. About a third of the plates, along with the entire interior structure, were fabricated in Oakland. The plates were polished to 98 percent of their final state and covered with protective white film before being sent to Chicago via trucks. Once in Chicago, the plates were welded together on-site, creating 2,442 linear feet (744 m) of welded seams. Welders used keyhole welding machines
rather than traditional welding guns. The plates were fabricated so precisely that no on-site cutting or filing was necessary when lifting and fitting them into position.
When construction of the shell began in June 2004, a large tent was erected around the piece to shield it from public view. Construction began with the omphalos, where plates were attached to the supporting internal steel structure, from the inside (underside) of the sculpture downward to the outermost surfaces. This sequence caused the structure to resemble a large sombrero
when the bottom was complete.
The shell of Cloud Gate was fully erected for the grand opening of Millennium Park on July 15, 2004, although it was unpolished and thus unfinished, because its assembly had fallen behind schedule. The piece was temporarily uncovered on July 8 for the opening, although Kapoor was unhappy with this as it allowed the public to see the sculpture in an unfinished state. The original plan was to re-erect the tent around the sculpture for polishing on July 24, but public appreciation for the piece convinced park officials to leave it uncovered for several months. The tent was again erected in January 2005 as a 24-person crew from Ironworkers Local 63
polished the seams between each plate. In order to grind, sand and polish the seams, six levels of scaffolding
were erected around the sides of the sculpture, while climbing ropes
and harnesses
were used to polish harder-to-reach areas. When the upper and side portions of the shell were completed, the tent was once again removed in August 2005. On October 3, the omphalos was closed off as workers polished the final section. Every weld on the Cloud Gate underwent a five-stage process, required to produce the sculpture's mirror-like finish.
The sculpture was finally completed on August 28, 2005, and officially unveiled on May 15, 2006. The cost for the piece was first estimated at $6 million; this had escalated to $11.5 million by the time the park opened in 2004, with the final figure standing at $23 million in 2006. No public funds were involved; all funding came from donations from individuals and corporations.
Kapoor's contract states that the constructed piece should be expected to survive for 1,000 years. The lower 6 feet (1.8 m) of Cloud Gate is wiped down twice a day by hand, while the entire sculpture is cleaned twice a year with 40 U.S.gal of liquid detergent. The daily cleanings use a Windex
-like solution, while the semi-annual cleanings use Tide. In addition to the scheduled cleanings, the work endures periodic vandalism, including a notable February 2009 incident during which two names were etched in letters about 1 inches (25.4 mm) tall on the northeast side of the curved sculpture. The graffiti was removed by the same firm that did the original polishing.
Chicago Mayor
Richard M. Daley
declared the day of the sculpture's dedication, May 15, 2006, to be "Cloud Gate Day". Kapoor attended the celebration, while local jazz trumpeter and bandleader Orbert Davis
and the Chicago Jazz Philharmonic played "Fanfare for Cloud Gate", which Davis composed. The public took an instant liking to the sculpture, affectionately referring to it as "The Bean". Cloud Gate has become a popular piece of public art
, and is now a fixture on many souvenirs such as postcards, sweatshirts and posters. The sculpture has attracted a large number of locals, as well as tourists and art aficionados from around the world. The sculpture is the piece by which Kapoor is most identified in the United States.
Time
describes the piece as an essential photo opportunity, and more of a destination than a work of art.The New York Times
writes that it is both a "tourist magnet" and an "extraordinary art object", while USA Today
refers to the sculpture as a monumental abstract
work. Chicago art critic Edward Lifson
considers Cloud Gate to be among the greatest pieces of public art in the world. The American Welding Society
recognized Cloud Gate, MTH Industries and PSI with the group's Extraordinary Welding Award. Time named Millennium Park one the ten best architectural achievements of 2004, citing Cloud Gate as one of the park's major attractions.
When the park first opened in 2004, Metra
police stopped a Columbia College Chicago
journalism
student who was working on a photography project in Millennium Park and confiscated his film because of fears of terrorism. In 2005, the sculpture attracted some controversy when a professional photographer without a paid permit was denied access to the piece. As is the case for all works of art currently covered by United States copyright
law, the artist holds the copyright for the sculpture. This allows the public to freely photograph Cloud Gate, but permission from Kapoor or the City of Chicago (which has licensed the art) is required for any commercial reproductions of the photographs. The city first set a policy of collecting permit fees for photographs. These permits were initially set at $350 per day for professional still photographers, $1,200 per day for professional videographer
s and $50 per hour for wedding photographers. The policy has been changed so permits are only required for large-scale film, video and photography requiring ten-man crews and equipment.
In addition to restricting photography of public art, closing a public park for a private event has also been controversial. In 2005 and 2006, almost all of Millennium Park was closed for a day for corporate events. On both occasions, as one of the park's primary attractions, Cloud Gate was the focus of controversy. On September 8, 2005, Toyota Motor Sales USA paid $800,000 to rent most venues in the park including Cloud Gate on AT&T Plaza from 6 a.m. to 11 p.m. On August 7, 2006, Allstate
paid $700,000 to rent the park. For this price, Allstate acquired the visitation rights to a different set of features and only had exclusive access to Cloud Gate after 4 p.m. These corporate closures denied tourists access to Kapoor's public sculpture, and commuters who walk through the park were forced to take alternative routes. City officials stated that the money would help to finance free public programs in Millennium Park.
has a reputation for creating spectacles in urban settings by producing works of extreme size and scale. Before creating Cloud Gate, Kapoor had created art that distorted images of the viewer instead of portraying images of its own. In so doing, he acquired experience blurring the boundary between the limit and the limitless. Kapoor drew on past experience to design Cloud Gate, in particular the designing of Sky Mirror
(2001), a 20 feet (6.1 m) 10 ST (9 t; 9 LT) concave stainless steel mirror that also used a theme of distorted perception on a grand scale.
Kapoor's objects often aim to evoke immateriality and the spiritual, an outcome he achieves either by carving dark voids into stone pieces, or more recently, through the sheer shine and reflectivity of his objects. This Indian artist's works have no fixed identity, but rather occupy an illusionary space that is consistent with eastern theologies shared by Buddhism
, Hinduism
and Taoism
, as well as Albert Einstein
's views of a non-three-dimensional world. Kapoor explores the theme of ambiguity with his works that place the viewer in a state of "in-betweenness". The artist often questions and plays with such dualities as solidity–emptiness or reality–reflection, which in turn allude to such paired opposites as flesh–spirit, the here–the beyond, east–west, sky–earth, etc. that create the conflict between internal and external, superficial and subterranean, and conscious and unconscious. Kapoor also creates a tension between masculine and feminine within his art by having concave points of focus that invite the entry of visitors and multiplies their images when they are positioned correctly.
's architectural designs in the park, Jay Pritzker Pavilion
and BP Pedestrian Bridge
, which display their seams prominently.
Cloud Gate is described as a transformative, iconic work. It is similar to many of Kapoor's previous works in the themes and issues it addresses. While the sculpture's mirror effects are reminiscent of fun-house fairground mirrors, they also have a more serious intent; they help dematerialize this very large object, making it seem light and almost weightless. Cloud Gate is considered Kapoor's most ambitious use of complex mirrored form dynamics. Kapoor challenges his viewers to internalize his work through intellectual and theoretical exercise. By reflecting the sky, visiting and non-visiting pedestrians and surrounding architecture, Cloud Gate limits its viewers to partial comprehension at any time. The interaction with the viewer who moves to create his own vision gives it a spiritual dimension. The sculpture is described as a disembodied, luminous form, which is also how his earlier 1000 Names (1979–80) was described when it addressed the metaphysical and mystical.
The viewer physically enters the art when he walks underneath it into its "navel". The omphalos is a "warped dimension of fluid space". In this dimension, solid is transformed into fluid in a disorienting multiplicative manner that intensifies the experience. It is emblematic of Kapoor's work to deconstruct empirical space and venture into manifold
possibilities of abstract space
. The experience is described as a displaced or virtual depth that is composed of multiplied surfaces.
According to project manager Lou Cerny of MTH Industries, "When the light is right, you can't see where the sculpture ends and the sky begins." The sculpture challenges perception by distorting and deforming the surrounding architecture. The skyscraper
s along East Randolph Street to the northeast (Two Prudential Plaza
, and Aon Center
), north (One Prudential Plaza
) and northwest (The Heritage
, Smurfit-Stone Building
) are reflected on Cloud Gates surface when viewed from either the east or the west. The sculpture also warps viewers' perception of time by changing the speed of movements such as the passing of clouds.
Although in the conventional sense Cloud Gate is not an opening that leads anywhere in the same way that monumental gates do, it frames a view and is celebratory in the way it creates a ceremonial place. The work is credited with achieving a new level or understanding described as a transubstantiation
of material, reminiscent of that which the artist experienced during a 1979 trip to India. Kapoor's 1000 Names evolved immediately after this trip; twenty-five years later he created Cloud Gate, an object that emerged from material forms to become immaterial.
Kapoor often relies on tenets of Hinduism in his art, and says that "The experience of opposites allows for the expression of wholeness." Primal dualities that are one, such as the lingam
and yoni
, are important to Indian culture, and Cloud Gate represents both the male and female in one entity by symbolizing both the vagina
and testicle
s. Thus, it represents the tension between the masculine and the feminine.
, which had to reshoot several scenes because the sculpture was under cover for the initial filming. It is also prominently featured in the ending scene of Source Code
. Director Duncan Jones
felt the structure was a metaphor for the movie's subject matter and aimed for it to be shown at the beginning and end of the movie.
Public art
The term public art properly refers to works of art in any media that have been planned and executed with the specific intention of being sited or staged in the physical public domain, usually outside and accessible to all...
sculpture by Indian-born British artist Anish Kapoor
Anish Kapoor
Anish Kapoor CBE RA is a British sculptor of Indian birth. Born in Mumbai , Kapoor has lived and worked in London since the early 1970s when he moved to study art, first at the Hornsey College of Art and later at the Chelsea School of Art and Design.He represented Britain in the XLIV Venice...
, is the centerpiece of the AT&T Plaza
AT&T Plaza
AT&T Plaza is a public space that hosts the Cloud Gate sculpture. It is located in Millennium Park, which is a park built to celebrate the third millennium and which is located within the Loop community area of Chicago, Illinois in the United States...
in Millennium Park
Millennium Park
Millennium Park is a public park located in the Loop community area of Chicago in Illinois, USA and originally intended to celebrate the millennium. It is a prominent civic center near the city's Lake Michigan shoreline that covers a section of northwestern Grant Park. The area was previously...
within the Loop
Chicago Loop
The Loop or Chicago Loop is one of 77 officially designated Chicago community areas located in the City of Chicago, Illinois. It is the historic commercial center of downtown Chicago...
community area
Community areas of Chicago
Community areas in Chicago refers to the work of the Social Science Research Committee at University of Chicago which has unofficially divided the City of Chicago into 77 community areas. These areas are well-defined and static...
of Chicago
Chicago
Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the US, after New York City and Los Angeles...
, Illinois
Illinois
Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...
, United States. The sculpture and AT&T Plaza are located on top of Park Grill
Park Grill
The Park Grill is the only full-service restaurant included in the multi-billion dollar Millennium Park project in Chicago, Illinois. Its outdoor seating area is the largest al fresco dining area in Chicago...
, between the Chase Promenade
Chase Promenade
Chase Promenade is an open-air, tree-lined pedestrian walkway that opened July 16, 2004. It is part of Millennium Park, which is located in the Loop community area of Chicago, Illinois in the United States. The Promenade was made possible by a gift from the Bank One Foundation...
and McCormick Tribune Plaza & Ice Rink
McCormick Tribune Plaza & Ice Rink
McCormick Tribune Plaza & Ice Rink or McCormick Tribune Plaza is a multi-purpose venue within Millennium Park in the Loop community area of Chicago, Illinois, USA. On December 20, 2001, it became the first attraction in Millennium Park to open. The $3.2 million plaza was funded by a donation from...
. Constructed between 2004 and 2006, the sculpture is nicknamed "The Bean" because of its bean-like shape. Made up of 168 stainless steel
Stainless steel
In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable", is defined as a steel alloy with a minimum of 10.5 or 11% chromium content by mass....
plates welded together, its highly polished exterior has no visible seams. It is 33 by, and weighs 110 ST (100 t; 98 LT).
Said to have been inspired by liquid mercury
Mercury (element)
Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver or hydrargyrum...
, the sculpture's surface reflects and distorts the city's skyline. Visitors are able to walk around and under Cloud Gates 12 feet (3.7 m) high arch. On the underside is the "omphalos" (Greek for "navel"), a concave chamber that warps and multiplies reflections. The sculpture builds upon many of Kapoor's artistic themes, and is popular with tourists as a photo-taking opportunity for its unique reflective properties.
The sculpture was selected during a design competition. After Kapoor's design was chosen, numerous technological concerns regarding the design's construction and assembly arose, in addition to concerns regarding the sculpture's upkeep and maintenance. Various experts were consulted, some of whom believed the design could not be implemented. Eventually, a feasible method was found, but the sculpture's construction fell behind schedule. It was unveiled in an incomplete form during the Millennium Park grand opening celebration in 2004, before being concealed again while it was completed. Cloud Gate was formally dedicated on May 15, 2006, and has since gained considerable popularity, both domestically and internationally.
Design
Image map
In HTML and XHTML , an image map is a list of coordinates relating to a specific image, created in order to hyperlink areas of the image to various destinations . For example, a map of the world may have each country hyperlinked to further information about that country...
of Millennium Park. (Each feature or label is link
Internal link
An internal link is a hyperlink that is a reference or navigation element in a document to another section of the same document or to another document that may be on or part of the same website or domain of the internet....
ed.)
rect 51 18 145 80 McDonald's Cycle Center
McDonald's Cycle Center
McDonald's Cycle Center is an indoor bike station in the northeast corner of Millennium Park in the Loop community area of Chicago, in the U.S. state of Illinois. The city of Chicago built the center at the intersection of East Randolph Street and Columbus Drive, and opened it July 2004...
rect 338 2 496 94BP Pedestrian Bridge
BP Pedestrian Bridge
The BP Pedestrian Bridge, or simply BP Bridge, is a girder footbridge in the Loop community area of Chicago, Illinois, United States. It spans Columbus Drive to connect Daley Bicentennial Plaza with Millennium Park, both parts of the larger Grant Park. Designed by Pritzker Prize-winning architect...
rect 497 62 536 101BP Pedestrian Bridge
BP Pedestrian Bridge
The BP Pedestrian Bridge, or simply BP Bridge, is a girder footbridge in the Loop community area of Chicago, Illinois, United States. It spans Columbus Drive to connect Daley Bicentennial Plaza with Millennium Park, both parts of the larger Grant Park. Designed by Pritzker Prize-winning architect...
rect 497 6 631 34 Columbus Drive
Columbus Drive (Chicago)
Columbus Drive is a north-south street in Chicago, Illinois which bisects Grant Park. It is 254 E in Chicago's street numbering system. Its south end is an interchange with Lake Shore Drive at Soldier Field...
rect 10 88 154 104 Exelon Pavilion NE
Exelon Pavilions
The Exelon Pavilions are four buildings that generate electricity from solar energy and provide access to underground parking in Millennium Park in the Loop community area of Chicago in Cook County, Illinois, United States...
rect 47 108 79 131 Exelon Pavilion NE
Exelon Pavilions
The Exelon Pavilions are four buildings that generate electricity from solar energy and provide access to underground parking in Millennium Park in the Loop community area of Chicago in Cook County, Illinois, United States...
rect 619 95 754 112 Exelon Pavilion SE
Exelon Pavilions
The Exelon Pavilions are four buildings that generate electricity from solar energy and provide access to underground parking in Millennium Park in the Loop community area of Chicago in Cook County, Illinois, United States...
rect 728 113 759 135 Exelon Pavilion SE
Exelon Pavilions
The Exelon Pavilions are four buildings that generate electricity from solar energy and provide access to underground parking in Millennium Park in the Loop community area of Chicago in Cook County, Illinois, United States...
rect 10 246 166 263 Exelon Pavilion NW
Exelon Pavilions
The Exelon Pavilions are four buildings that generate electricity from solar energy and provide access to underground parking in Millennium Park in the Loop community area of Chicago in Cook County, Illinois, United States...
rect 47 265 78 288 Exelon Pavilion NW
Exelon Pavilions
The Exelon Pavilions are four buildings that generate electricity from solar energy and provide access to underground parking in Millennium Park in the Loop community area of Chicago in Cook County, Illinois, United States...
rect 613 243 762 258 Exelon Pavilion SW
Exelon Pavilions
The Exelon Pavilions are four buildings that generate electricity from solar energy and provide access to underground parking in Millennium Park in the Loop community area of Chicago in Cook County, Illinois, United States...
rect 736 260 757 275 Exelon Pavilion SW
Exelon Pavilions
The Exelon Pavilions are four buildings that generate electricity from solar energy and provide access to underground parking in Millennium Park in the Loop community area of Chicago in Cook County, Illinois, United States...
rect 44 149 174 229 Harris Theater
Harris Theater (Chicago)
The Joan W. and Irving B. Harris Theater for Music and Dance is a 1,525-seat theater for the performing arts located along the northern edge of Millennium Park on Randolph Street in the Loop community area of Chicago in Cook County, Illinois, US...
rect 175 103 572 288 Jay Pritzker Pavilion
Jay Pritzker Pavilion
Jay Pritzker Pavilion, also known as Pritzker Pavilion or Pritzker Music Pavilion, is a bandshell in Millennium Park in the Loop community area of Chicago in Cook County, Illinois, United States. It is located on the south side of Randolph Street and east of the Chicago Landmark Historic Michigan...
rect 573 134 757 238 Lurie Garden
Lurie Garden
Lurie Garden is a garden located at the southern end of Millennium Park in the Loop area of Chicago in Cook County, Illinois, United States. Designed by Kathryn Gustafson, Piet Oudolf, and Robert Israel, it opened on July 16, 2004. The garden is a combination of perennials, bulbs, grasses,...
rect 572 311 718 329 Nichols Bridgeway
Nichols Bridgeway
The Nichols Bridgeway is a pedestrian bridge located in Chicago, Illinois. The bridge begins at the Great Lawn of Millennium Park, crosses over Monroe Street and connects to the third floor of the West Pavilion of the Modern Wing, the Art Institute of Chicago's newest wing...
rect 516 298 777 306 Nichols Bridgeway
Nichols Bridgeway
The Nichols Bridgeway is a pedestrian bridge located in Chicago, Illinois. The bridge begins at the Great Lawn of Millennium Park, crosses over Monroe Street and connects to the third floor of the West Pavilion of the Modern Wing, the Art Institute of Chicago's newest wing...
rect 58 350 207 396 Chase Promenade North
Chase Promenade
Chase Promenade is an open-air, tree-lined pedestrian walkway that opened July 16, 2004. It is part of Millennium Park, which is located in the Loop community area of Chicago, Illinois in the United States. The Promenade was made possible by a gift from the Bank One Foundation...
rect 291 350 453 396 Chase Promenade Central
Chase Promenade
Chase Promenade is an open-air, tree-lined pedestrian walkway that opened July 16, 2004. It is part of Millennium Park, which is located in the Loop community area of Chicago, Illinois in the United States. The Promenade was made possible by a gift from the Bank One Foundation...
rect 537 350 687 396 Chase Promenade South
Chase Promenade
Chase Promenade is an open-air, tree-lined pedestrian walkway that opened July 16, 2004. It is part of Millennium Park, which is located in the Loop community area of Chicago, Illinois in the United States. The Promenade was made possible by a gift from the Bank One Foundation...
rect 313 397 431 424 AT&T Plaza
AT&T Plaza
AT&T Plaza is a public space that hosts the Cloud Gate sculpture. It is located in Millennium Park, which is a park built to celebrate the third millennium and which is located within the Loop community area of Chicago, Illinois in the United States...
rect 37 434 227 473 Boeing Gallery North
Boeing Galleries
- Past exhibitions :2005The first exhibition in the renamed Galleries was Revealing Chicago: An Aerial Portrait, which was displayed on the Central Chase Promenade and South Boeing Gallery, appeared from June 10–October 10, 2005...
rect 516 433 757 469 Boeing Gallery South
Boeing Galleries
- Past exhibitions :2005The first exhibition in the renamed Galleries was Revealing Chicago: An Aerial Portrait, which was displayed on the Central Chase Promenade and South Boeing Gallery, appeared from June 10–October 10, 2005...
rect 337 426 416 470 Cloud Gate
Cloud Gate
Cloud Gate, a public sculpture by Indian-born British artist Anish Kapoor, is the centerpiece of the AT&T Plaza in Millennium Park within the Loop community area of Chicago, Illinois, United States. The sculpture and AT&T Plaza are located on top of Park Grill, between the Chase Promenade and...
rect 60 486 216 546 Wrigley Square
Wrigley Square
Wrigley Square is a public square located in the northwest section of Millennium Park in the Historic Michigan Boulevard District of the Loop area of Chicago in Cook County, Illinois, USA. The square is located at the southeast corner of the intersection of East Randolph Street and North Michigan...
rect 287 477 457 543 McCormick Tribune Plaza & Ice Rink
McCormick Tribune Plaza & Ice Rink
McCormick Tribune Plaza & Ice Rink or McCormick Tribune Plaza is a multi-purpose venue within Millennium Park in the Loop community area of Chicago, Illinois, USA. On December 20, 2001, it became the first attraction in Millennium Park to open. The $3.2 million plaza was funded by a donation from...
rect 557 488 727 543 Crown Fountain
Crown Fountain
Crown Fountain is an interactive work of public art and video sculpture featured in Chicago's Millennium Park, which is located in the Loop community area. Designed by Catalan artist Jaume Plensa and executed by Krueck and Sexton Architects, it opened in July 2004. The fountain is composed of a...
rect 308 567 439 583 Michigan Avenue
Michigan Avenue (Chicago)
Michigan Avenue is a major north-south street in Chicago which runs at 100 east south of the Chicago River and at 132 East north of the river from 12628 south to 950 north in the Chicago street address system...
rect 1 316 23 442 Randolph Street
Randolph Street (Chicago)
Randolph Street is a street in Chicago. It runs east-west through the Chicago Loop, carrying westbound traffic west from Michigan Avenue across the Chicago River on the Randolph Street Bridge, interchanging with the Kennedy Expressway , and continuing west. It serves as the northern boundary of...
desc bottom-left
Lying between Lake Michigan
Lake Michigan
Lake Michigan is one of the five Great Lakes of North America and the only one located entirely within the United States. It is the second largest of the Great Lakes by volume and the third largest by surface area, after Lake Superior and Lake Huron...
to the east and the Loop to the west, Grant Park
Grant Park (Chicago)
Grant Park, with between the downtown Chicago Loop and Lake Michigan, offers many different attractions in its large open space. The park is generally flat. It is also crossed by large boulevards and even a bed of sunken railroad tracks...
has been Chicago's front yard since the mid-19th century. Its northwest corner, north of Monroe Street and the Art Institute
Art Institute of Chicago
The School of the Art Institute of Chicago is one of America's largest accredited independent schools of art and design, located in the Loop in Chicago, Illinois. It is associated with the museum of the same name, and "The Art Institute of Chicago" or "Chicago Art Institute" often refers to either...
, east of Michigan Avenue
Michigan Avenue (Chicago)
Michigan Avenue is a major north-south street in Chicago which runs at 100 east south of the Chicago River and at 132 East north of the river from 12628 south to 950 north in the Chicago street address system...
, south of Randolph Street
Randolph Street (Chicago)
Randolph Street is a street in Chicago. It runs east-west through the Chicago Loop, carrying westbound traffic west from Michigan Avenue across the Chicago River on the Randolph Street Bridge, interchanging with the Kennedy Expressway , and continuing west. It serves as the northern boundary of...
, and west of Columbus Drive
Columbus Drive (Chicago)
Columbus Drive is a north-south street in Chicago, Illinois which bisects Grant Park. It is 254 E in Chicago's street numbering system. Its south end is an interchange with Lake Shore Drive at Soldier Field...
, had been Illinois Central
Illinois Central Railroad
The Illinois Central Railroad , sometimes called the Main Line of Mid-America, is a railroad in the central United States, with its primary routes connecting Chicago, Illinois with New Orleans, Louisiana and Birmingham, Alabama. A line also connected Chicago with Sioux City, Iowa...
rail yards and parking lots until 1997, when it was made available for development by the city as Millennium Park
Millennium Park
Millennium Park is a public park located in the Loop community area of Chicago in Illinois, USA and originally intended to celebrate the millennium. It is a prominent civic center near the city's Lake Michigan shoreline that covers a section of northwestern Grant Park. The area was previously...
. For 2007, the park was Chicago's second largest tourist attraction, trailing only Navy Pier
Navy Pier
Navy Pier is a long pier on the Chicago shoreline of Lake Michigan. It is located in the Streeterville neighborhood of the Near North Side community area. The pier was built in 1916 at a cost of $4.5 million, equivalent to $ today. It was a part of the Plan of Chicago developed by architect and...
.
In 1999, Millennium Park officials and a group of art collectors, curator
Curator
A curator is a manager or overseer. Traditionally, a curator or keeper of a cultural heritage institution is a content specialist responsible for an institution's collections and involved with the interpretation of heritage material...
s and architect
Architect
An architect is a person trained in the planning, design and oversight of the construction of buildings. To practice architecture means to offer or render services in connection with the design and construction of a building, or group of buildings and the space within the site surrounding the...
s reviewed the artistic works of 30 different artists and asked two for proposals. American artist Jeff Koons
Jeff Koons
Jeffrey "Jeff" Koons is an American artist known for his reproductions of banal objects—such as balloon animals produced in stainless steel with mirror finish surfaces....
submitted a proposal to erect a permanent 150 feet (45.7 m) sculpture of a playground slide
Playground slide
Playground slides are found in parks, schools, playgrounds and backyards. The slide may be flat, or half cylindrical or tubular to prevent falls. Slides are usually constructed of plastic or metal and they have a smooth surface that is either straight or wavy...
; his glass and steel design featured an observation deck
Observation deck
__FORCETOC__ An observation deck, observation platform or viewing platform is an elevated sightseeing platform usually situated upon a tall architectural structure such as a skyscraper or observation tower...
90 feet (27.4 m) above the ground that was accessible via an elevator. The committee chose the second design by internationally acclaimed artist Anish Kapoor
Anish Kapoor
Anish Kapoor CBE RA is a British sculptor of Indian birth. Born in Mumbai , Kapoor has lived and worked in London since the early 1970s when he moved to study art, first at the Hornsey College of Art and later at the Chelsea School of Art and Design.He represented Britain in the XLIV Venice...
. Measuring 33 by and weighing 110 ST (100 t; 98 LT), the proposal featured a seamless, stainless steel
Stainless steel
In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable", is defined as a steel alloy with a minimum of 10.5 or 11% chromium content by mass....
surface inspired by liquid mercury
Mercury (element)
Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver or hydrargyrum...
. This mirror-like surface would reflect the Chicago skyline, but its elliptical shape would distort and twist the reflected image. As visitors walk around the structure, its surface acts like a fun-house mirror
Curved mirror
A curved mirror is a mirror with a curved reflective surface, which may be either convex or concave . Most curved mirrors have surfaces that are shaped like part of a sphere, but other shapes are sometimes used in optical devices...
as it distorts their reflections.
Omphalos
An omphalos is an ancient religious stone artifact, or baetylus. In Greek, the word omphalos means "navel" . According to the ancient Greeks, Zeus sent out two eagles to fly across the world to meet at its center, the "navel" of the world...
, an indentation whose mirrored surface provides multiple reflections of any subject situated beneath it. The apex of the omphalos is 27 feet (8.2 m) above the ground. The concave underside allows visitors to walk underneath to see the omphalos, and through its arch to the other side so that they view the entire structure. During the grand opening week in July 2004, press reports described the omphalos as the "spoon-like underbelly". The stainless steel sculpture was originally envisioned as the centerpiece of the Lurie Garden
Lurie Garden
Lurie Garden is a garden located at the southern end of Millennium Park in the Loop area of Chicago in Cook County, Illinois, United States. Designed by Kathryn Gustafson, Piet Oudolf, and Robert Israel, it opened on July 16, 2004. The garden is a combination of perennials, bulbs, grasses,...
at the southeast corner of the park. However, Park officials believed the piece was too large for the Lurie Garden and decided to locate it at AT&T Plaza
AT&T Plaza
AT&T Plaza is a public space that hosts the Cloud Gate sculpture. It is located in Millennium Park, which is a park built to celebrate the third millennium and which is located within the Loop community area of Chicago, Illinois in the United States...
, despite Kapoor's objections. Skyscraper
Skyscraper
A skyscraper is a tall, continuously habitable building of many stories, often designed for office and commercial use. There is no official definition or height above which a building may be classified as a skyscraper...
s to the north along East Randolph Street, including The Heritage
The Heritage at Millennium Park
The Heritage at Millennium Park located at 130 N. Garland Court is a relatively new mixed use tower in Chicago. Completed in 2005 with a height of 631 feet and 57 floors, the building was designed by the architectural firm Solomon Cordwell Buenz .The tower's success lies mainly with its location;...
, the Smurfit-Stone Building
Smurfit-Stone Building
Smurfit-Stone Building is a 41 story, 582 foot skyscraper located at 150 North Michigan Avenue in downtown Chicago, Illinois. It was also known as the Stone Container Building and was formerly called the Associates Center...
, Two Prudential Plaza
Two Prudential Plaza
Two Prudential Plaza is a super-tall skyscraper that was built in the Loop area of Chicago, Illinois, United States in 1990. At 995 feet tall, it is currently the sixth-tallest building in Chicago and the thirteenth tallest in the United States. The building was designed by the firm Loebl,...
, One Prudential Plaza
One Prudential Plaza
One Prudential Plaza is a 41-story structure in Chicago completed in 1955 as the headquarters for Prudential's Mid-America company...
, and Aon Center
Aon Center (Chicago)
The Aon Center is a modern skyscraper in the Chicago Loop, Chicago, Illinois, United States, designed by architect firms Edward Durell Stone and The Perkins and Will partnership, and completed in 1973 as the Standard Oil Building...
are visible, reflected on both the east and west sides of the sculpture.
Although Kapoor does not draw with computers, computer modeling was essential to the process of analyzing the complex form, which created numerous issues. Being outside, concerns arose that it might retain and conduct heat in a way that would make it too hot to touch during the summer and so cold that one's tongue might stick to it during the winter. The extreme temperature variation between seasons was also feared to weaken the structure. Graffiti
Graffiti
Graffiti is the name for images or lettering scratched, scrawled, painted or marked in any manner on property....
, bird droppings and fingerprint
Fingerprint
A fingerprint in its narrow sense is an impression left by the friction ridges of a human finger. In a wider use of the term, fingerprints are the traces of an impression from the friction ridges of any part of a human hand. A print from the foot can also leave an impression of friction ridges...
s were also potential problems, as they would affect the aesthetics of the surface. The most pressing issue was the need to create a single seamless
Seam (metallurgy)
Hemming and seaming are two similar metalworking processes in which a sheet metal edge is rolled over onto itself. A hem is when the edge is rolled flush to itself, while a seam joins the edges of two materials....
exterior for the external shell, a feat architect Norman Foster
Norman Foster, Baron Foster of Thames Bank
Norman Robert Foster, Baron Foster of Thames Bank, OM is a British architect whose company maintains an international design practice, Foster + Partners....
once believed to be nearly impossible.
While the sculpture was being constructed, public and media outlets nicknamed it "The Bean" because of its leguminous shape, a name that Kapoor described as "completely stupid". Months later, Kapoor officially named the piece "Cloud Gate". Critical reviews describe the sculpture as a passage between realms. Three-quarters of the sculpture's external surface reflects the sky and the name refers to it acting as a type of gate that helps bridge the space between the sky and the viewer. The sculpture and plaza are sometimes referred to jointly as "Cloud Gate on the AT&T Plaza". It is Kapoor's first public outdoor work in the United States, and is the work by which he is best known in the country according to the Financial Times
Financial Times
The Financial Times is an international business newspaper. It is a morning daily newspaper published in London and printed in 24 cities around the world. Its primary rival is the Wall Street Journal, published in New York City....
.
Construction and maintenance
Atelier One
Atelier One is a British structural engineering company, established in 1989 with offices in London and Brighton. The company has collaborated with architects, designers and artists , and is consistently experimental...
and freelance engineer Chris Hornzee-Jones (who later went on to form the engineering firm Aerotrope in 2005) provided the sculpture's structural design, and Performance Structures, Inc. (PSI) was chosen to fabricate
Fabrication (metal)
Fabrication as an industrial term refers to building metal structures by cutting, bending, and assembling. The cutting part of fabrication is via sawing, shearing, or chiseling ; torching with handheld torches ; and via CNC cutters...
it because of their ability to produce nearly invisible welds
Welding
Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material that cools to become a strong joint, with pressure sometimes...
. The project began with PSI attempting to recreate the design in miniature. A high-density polyurethane
Polyurethane
A polyurethane is any polymer composed of a chain of organic units joined by carbamate links. Polyurethane polymers are formed through step-growth polymerization, by reacting a monomer with another monomer in the presence of a catalyst.Polyurethanes are...
foam model was selected by Kapoor, which was then used to design the final structure, including the interior structural components. Initially, PSI planned to build and assemble the sculpture in Oakland, California
Oakland, California
Oakland is a major West Coast port city on San Francisco Bay in the U.S. state of California. It is the eighth-largest city in the state with a 2010 population of 390,724...
, and ship it to Chicago through the Panama Canal
Panama Canal
The Panama Canal is a ship canal in Panama that joins the Atlantic Ocean and the Pacific Ocean and is a key conduit for international maritime trade. Built from 1904 to 1914, the canal has seen annual traffic rise from about 1,000 ships early on to 14,702 vessels measuring a total of 309.6...
and St. Lawrence Seaway. However, this plan was discarded after park officials deemed it too risky, so the decision was made to transport the individual panels by truck and to assemble the structure on-site, a task undertaken by MTH Industries.
The sculpture's weight raised concerns. Estimating the thickness of the steel needed to create the sculpture's desired aesthetics before fabrication was difficult. Cloud Gate was originally estimated to weigh 60 ST (54 t; 54 LT) when completed. However, the final figure was almost twice as heavy at 110 ST (100 t; 98 LT). This extra weight required engineers to reconsider the sculpture's supporting structures. The roof of the Park Grill
Park Grill
The Park Grill is the only full-service restaurant included in the multi-billion dollar Millennium Park project in Chicago, Illinois. Its outdoor seating area is the largest al fresco dining area in Chicago...
, upon which Cloud Gate sits, had to be built strong enough to bear the weight. The large retaining wall separating Chicago's Metra
Metra
Metra is the commuter rail division of the Illinois Regional Transportation Authority. The system serves Chicago and its metropolitan area through 240 stations on 11 different rail lines. Throughout the 21st century, Metra has been the second busiest commuter rail system in the United States by...
train tracks from the North Grant Park
Grant Park (Chicago)
Grant Park, with between the downtown Chicago Loop and Lake Michigan, offers many different attractions in its large open space. The park is generally flat. It is also crossed by large boulevards and even a bed of sunken railroad tracks...
garage supports much of the weight of the sculpture and forms the back side of the restaurant. This wall, along with the rest of the garage's foundation, required additional bracing before the piece was erected. Cloud Gate is further buttress
Buttress
A buttress is an architectural structure built against or projecting from a wall which serves to support or reinforce the wall...
ed by lateral members underneath the plaza that are anchored to the sculpture's interior structure by tie rod
Tie rod
A tie rod is a slender structural unit used as a tie and capable of carrying tensile loads only.- Subtypes and examples of applications :* In airplane structures, tie rods are sometimes used in the fuselage or wings....
s.
Inside Cloud Gate
Truss
In architecture and structural engineering, a truss is a structure comprising one or more triangular units constructed with straight members whose ends are connected at joints referred to as nodes. External forces and reactions to those forces are considered to act only at the nodes and result in...
es were assembled between the two rings. The trusses and supporting structures were only present for the construction phases. The finished sculpture has no inner bracing. The supporting structural components were designed and constructed to ensure that no specific point was overloaded, and to avoid producing unwanted indentations on the exterior shell. The frame was also designed to expand and contract with the sculpture as temperatures fluctuate. As a result, the two large rings supporting the sculpture move independently of each other, allowing the shell to move independently of the rings.
English Wheel
The English wheel, in Britain also known as a Wheeling machine, is a metalworking tool that enables a craftsman to form compound curves from flat sheets of metal such as aluminium or steel. The process of using an English wheel is known as Wheeling...
and a robotic scanning device. Metal stiffeners were welded to each panel's interior face to provide a small degree of rigidity. About a third of the plates, along with the entire interior structure, were fabricated in Oakland. The plates were polished to 98 percent of their final state and covered with protective white film before being sent to Chicago via trucks. Once in Chicago, the plates were welded together on-site, creating 2,442 linear feet (744 m) of welded seams. Welders used keyhole welding machines
Laser-hybrid welding
Laser Hybrid welding is a type of welding process that combines the principles of laser beam welding and arc welding.The combination of laser light and an electrical arc into an amalgamated welding process has existed since the 1970s, but has only recently been used in industrial applications...
rather than traditional welding guns. The plates were fabricated so precisely that no on-site cutting or filing was necessary when lifting and fitting them into position.
When construction of the shell began in June 2004, a large tent was erected around the piece to shield it from public view. Construction began with the omphalos, where plates were attached to the supporting internal steel structure, from the inside (underside) of the sculpture downward to the outermost surfaces. This sequence caused the structure to resemble a large sombrero
Sombrero
Sombrero in English refers to a type of wide-brimmed hat originating in Mexico. In Spanish, however, it is the generic word for "hat", which originates from "sombra", meaning "shade"....
when the bottom was complete.
The shell of Cloud Gate was fully erected for the grand opening of Millennium Park on July 15, 2004, although it was unpolished and thus unfinished, because its assembly had fallen behind schedule. The piece was temporarily uncovered on July 8 for the opening, although Kapoor was unhappy with this as it allowed the public to see the sculpture in an unfinished state. The original plan was to re-erect the tent around the sculpture for polishing on July 24, but public appreciation for the piece convinced park officials to leave it uncovered for several months. The tent was again erected in January 2005 as a 24-person crew from Ironworkers Local 63
International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers
The International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers is a union in the United States and Canada, which represents primarily construction workers, as well as shipbuilding and metal fabrication employees.-Origins:...
polished the seams between each plate. In order to grind, sand and polish the seams, six levels of scaffolding
Scaffolding
Scaffolding is a temporary structure used to support people and material in the construction or repair of buildings and other large structures. It is usually a modular system of metal pipes or tubes, although it can be from other materials...
were erected around the sides of the sculpture, while climbing ropes
Climbing equipment
A wide range of equipment is used during rock climbing. The most popular types of climbing equipment are briefly described in this article. The article on protecting a climb describes equipment commonly used to protect a climber against the consequences of a fall....
and harnesses
Climbing harness
A climbing harness is a piece of equipment used in certain types of rock-climbing, abseiling or other activities requiring the use of ropes to provide access or safety...
were used to polish harder-to-reach areas. When the upper and side portions of the shell were completed, the tent was once again removed in August 2005. On October 3, the omphalos was closed off as workers polished the final section. Every weld on the Cloud Gate underwent a five-stage process, required to produce the sculpture's mirror-like finish.
| Stage | Name | Equipment used | Sandpaper Sandpaper Sandpaper, also known as glasspaper, is a heavy paper with abrasive material attached to its surface.Sandpaper is part of the "coated abrasives" family of abrasive products. It is used to remove small amounts of material from surfaces, either to make them smoother , to remove a layer of material... type |
Purpose |
|---|---|---|---|---|
| 1 | Rough Cut | 5 pounds (2.3 kg), 4½-inch (110 mm) electric grinder | 40-grit | Removed weld Welding Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material that cools to become a strong joint, with pressure sometimes... ed seams |
| 2 | Initial Contour | 15 pounds (6.8 kg), 2 inches (5.1 cm), air-driven belt sander Belt sander A belt sander is a machine used to sand down wood and other materials for finishing purposes. It consists of an electrical motor that turns a pair of drums on which a seamless loop of sandpaper is mounted. Belt sanders can be either hand-held, where the sander is moved over the material, or... |
80-grit, 100-grit and 120-grit | Shaped the weld contours |
| 3 | Sculpting | air-driven 10 pounds (4.5 kg), 1 inches (2.5 cm) belt sander | 80-grit, 120-grit, 240-grit and 400-grit | Smoothed the weld contours |
| 4 | Refining | double action sander | 400-grit, 600-grit and 800-grit | Removed the fine scratches that were left from the Sculpting stage |
| 5 | Polishing | 10 inches (25.4 cm) electric buffing wheel | 10 pounds (4.5 kg) of rouge | Buffed and polished the surface to a mirror-like finish |
The sculpture was finally completed on August 28, 2005, and officially unveiled on May 15, 2006. The cost for the piece was first estimated at $6 million; this had escalated to $11.5 million by the time the park opened in 2004, with the final figure standing at $23 million in 2006. No public funds were involved; all funding came from donations from individuals and corporations.
Kapoor's contract states that the constructed piece should be expected to survive for 1,000 years. The lower 6 feet (1.8 m) of Cloud Gate is wiped down twice a day by hand, while the entire sculpture is cleaned twice a year with 40 U.S.gal of liquid detergent. The daily cleanings use a Windex
Windex
Windex is a trademark for a glass and hard-surface cleaner manufactured since 1933. S. C. Johnson acquired Windex in 1993 and has been manufacturing it since that time. The product was recently reformulated with more environmentally desirable solvents....
-like solution, while the semi-annual cleanings use Tide. In addition to the scheduled cleanings, the work endures periodic vandalism, including a notable February 2009 incident during which two names were etched in letters about 1 inches (25.4 mm) tall on the northeast side of the curved sculpture. The graffiti was removed by the same firm that did the original polishing.
Reception
Mayor of Chicago
The Mayor of Chicago is the chief executive of Chicago, Illinois, the third largest city in the United States. He or she is charged with directing city departments and agencies, and with the advice and consent of the Chicago City Council, appoints department and agency leaders.-Appointment...
Richard M. Daley
Richard M. Daley
Richard Michael Daley is a United States politician, member of the national and local Democratic Party, and former Mayor of Chicago, Illinois. He was elected mayor in 1989 and reelected in 1991, 1995, 1999, 2003, and 2007. He was the longest serving Chicago mayor, surpassing the tenure of his...
declared the day of the sculpture's dedication, May 15, 2006, to be "Cloud Gate Day". Kapoor attended the celebration, while local jazz trumpeter and bandleader Orbert Davis
Orbert Davis
Orbert Davis is an American jazz trumpeter and bandleader.- Biography :Davis was born in Chicago and raised in Momence, Illinois. He began playing trumpet around the age of ten, but was not formally instructed until Charles Danish, an elementary school teacher, found him a trumpet teacher and drove...
and the Chicago Jazz Philharmonic played "Fanfare for Cloud Gate", which Davis composed. The public took an instant liking to the sculpture, affectionately referring to it as "The Bean". Cloud Gate has become a popular piece of public art
Public art
The term public art properly refers to works of art in any media that have been planned and executed with the specific intention of being sited or staged in the physical public domain, usually outside and accessible to all...
, and is now a fixture on many souvenirs such as postcards, sweatshirts and posters. The sculpture has attracted a large number of locals, as well as tourists and art aficionados from around the world. The sculpture is the piece by which Kapoor is most identified in the United States.
Time
Time (magazine)
Time is an American news magazine. A European edition is published from London. Time Europe covers the Middle East, Africa and, since 2003, Latin America. An Asian edition is based in Hong Kong...
describes the piece as an essential photo opportunity, and more of a destination than a work of art.The New York Times
The New York Times
The New York Times is an American daily newspaper founded and continuously published in New York City since 1851. The New York Times has won 106 Pulitzer Prizes, the most of any news organization...
writes that it is both a "tourist magnet" and an "extraordinary art object", while USA Today
USA Today
USA Today is a national American daily newspaper published by the Gannett Company. It was founded by Al Neuharth. The newspaper vies with The Wall Street Journal for the position of having the widest circulation of any newspaper in the United States, something it previously held since 2003...
refers to the sculpture as a monumental abstract
Abstract art
Abstract art uses a visual language of form, color and line to create a composition which may exist with a degree of independence from visual references in the world. Western art had been, from the Renaissance up to the middle of the 19th century, underpinned by the logic of perspective and an...
work. Chicago art critic Edward Lifson
Edward Lifson
Edward Lifson is an award-winning American journalist and architecture critic. He writes on architecture, urbanism and culture, in addition to news and politics. Lifson created and hosted a popular radio show in Chicago called "Hello Beautiful!" to explore urban architecture and design issues....
considers Cloud Gate to be among the greatest pieces of public art in the world. The American Welding Society
American Welding Society
The American Welding Society is a nonprofit organization dedicated to advancing the science, technology, and application of welding and allied joining and cutting processes, including brazing, soldering, and thermal spraying...
recognized Cloud Gate, MTH Industries and PSI with the group's Extraordinary Welding Award. Time named Millennium Park one the ten best architectural achievements of 2004, citing Cloud Gate as one of the park's major attractions.
When the park first opened in 2004, Metra
Metra
Metra is the commuter rail division of the Illinois Regional Transportation Authority. The system serves Chicago and its metropolitan area through 240 stations on 11 different rail lines. Throughout the 21st century, Metra has been the second busiest commuter rail system in the United States by...
police stopped a Columbia College Chicago
Columbia College Chicago
Columbia College Chicago is one of the largest art colleges in the United States with nearly 12,000 students pursuing degrees within 120 undergraduate and graduate programs...
journalism
Journalism
Journalism is the practice of investigation and reporting of events, issues and trends to a broad audience in a timely fashion. Though there are many variations of journalism, the ideal is to inform the intended audience. Along with covering organizations and institutions such as government and...
student who was working on a photography project in Millennium Park and confiscated his film because of fears of terrorism. In 2005, the sculpture attracted some controversy when a professional photographer without a paid permit was denied access to the piece. As is the case for all works of art currently covered by United States copyright
Copyright
Copyright is a legal concept, enacted by most governments, giving the creator of an original work exclusive rights to it, usually for a limited time...
law, the artist holds the copyright for the sculpture. This allows the public to freely photograph Cloud Gate, but permission from Kapoor or the City of Chicago (which has licensed the art) is required for any commercial reproductions of the photographs. The city first set a policy of collecting permit fees for photographs. These permits were initially set at $350 per day for professional still photographers, $1,200 per day for professional videographer
Videographer
Strictly speaking, a videographer is a person who works in the field of videography, video production — recording moving images and sound on video tape, disk, other electro-mechanical device. News broadcasting relies heavily on live television where videographers engage in electronic news...
s and $50 per hour for wedding photographers. The policy has been changed so permits are only required for large-scale film, video and photography requiring ten-man crews and equipment.
In addition to restricting photography of public art, closing a public park for a private event has also been controversial. In 2005 and 2006, almost all of Millennium Park was closed for a day for corporate events. On both occasions, as one of the park's primary attractions, Cloud Gate was the focus of controversy. On September 8, 2005, Toyota Motor Sales USA paid $800,000 to rent most venues in the park including Cloud Gate on AT&T Plaza from 6 a.m. to 11 p.m. On August 7, 2006, Allstate
Allstate
The Allstate Corporation is the second-largest personal lines insurer in the United States and the largest that is publicly held. The company also has personal lines insurance operations in Canada. Allstate was founded in 1931 as part of Sears, Roebuck and Co., and was spun off in 1993...
paid $700,000 to rent the park. For this price, Allstate acquired the visitation rights to a different set of features and only had exclusive access to Cloud Gate after 4 p.m. These corporate closures denied tourists access to Kapoor's public sculpture, and commuters who walk through the park were forced to take alternative routes. City officials stated that the money would help to finance free public programs in Millennium Park.
Relevant Kapoor themes
Anish KapoorAnish Kapoor
Anish Kapoor CBE RA is a British sculptor of Indian birth. Born in Mumbai , Kapoor has lived and worked in London since the early 1970s when he moved to study art, first at the Hornsey College of Art and later at the Chelsea School of Art and Design.He represented Britain in the XLIV Venice...
has a reputation for creating spectacles in urban settings by producing works of extreme size and scale. Before creating Cloud Gate, Kapoor had created art that distorted images of the viewer instead of portraying images of its own. In so doing, he acquired experience blurring the boundary between the limit and the limitless. Kapoor drew on past experience to design Cloud Gate, in particular the designing of Sky Mirror
Sky Mirror
is a public sculpture by artist Anish Kapoor. Commissioned by the Nottingham Playhouse from the artist, it is installed outside the theatre in Wellington Circus, Nottingham, England. Sky Mirror is a six-metre-wide concave dish of polished stainless steel weighing ten tonnes and angled up towards...
(2001), a 20 feet (6.1 m) 10 ST (9 t; 9 LT) concave stainless steel mirror that also used a theme of distorted perception on a grand scale.
Kapoor's objects often aim to evoke immateriality and the spiritual, an outcome he achieves either by carving dark voids into stone pieces, or more recently, through the sheer shine and reflectivity of his objects. This Indian artist's works have no fixed identity, but rather occupy an illusionary space that is consistent with eastern theologies shared by Buddhism
Buddhism
Buddhism is a religion and philosophy encompassing a variety of traditions, beliefs and practices, largely based on teachings attributed to Siddhartha Gautama, commonly known as the Buddha . The Buddha lived and taught in the northeastern Indian subcontinent some time between the 6th and 4th...
, Hinduism
Hinduism
Hinduism is the predominant and indigenous religious tradition of the Indian Subcontinent. Hinduism is known to its followers as , amongst many other expressions...
and Taoism
Taoism
Taoism refers to a philosophical or religious tradition in which the basic concept is to establish harmony with the Tao , which is the mechanism of everything that exists...
, as well as Albert Einstein
Albert Einstein
Albert Einstein was a German-born theoretical physicist who developed the theory of general relativity, effecting a revolution in physics. For this achievement, Einstein is often regarded as the father of modern physics and one of the most prolific intellects in human history...
's views of a non-three-dimensional world. Kapoor explores the theme of ambiguity with his works that place the viewer in a state of "in-betweenness". The artist often questions and plays with such dualities as solidity–emptiness or reality–reflection, which in turn allude to such paired opposites as flesh–spirit, the here–the beyond, east–west, sky–earth, etc. that create the conflict between internal and external, superficial and subterranean, and conscious and unconscious. Kapoor also creates a tension between masculine and feminine within his art by having concave points of focus that invite the entry of visitors and multiplies their images when they are positioned correctly.
Cloud Gate themes
Kapoor often speaks of removing both the signature of the artist from his works as well as any traces of their fabrication, or what he refers to as "traces of the hand". He aspires to make his works look like they have independent realities that he reveals rather than creates. For him, removing all the seams from Cloud Gate was necessary in order to make the sculpture seem as though it was "perfect" and ready-made. These effects increase the viewer's fascination with it and makes them wonder what it is and where it came from. His attempts to hide his works' seams as an artist stand in contrast to Frank GehryFrank Gehry
Frank Owen Gehry, is a Canadian American Pritzker Prize-winning architect based in Los Angeles, California.His buildings, including his private residence, have become tourist attractions...
's architectural designs in the park, Jay Pritzker Pavilion
Jay Pritzker Pavilion
Jay Pritzker Pavilion, also known as Pritzker Pavilion or Pritzker Music Pavilion, is a bandshell in Millennium Park in the Loop community area of Chicago in Cook County, Illinois, United States. It is located on the south side of Randolph Street and east of the Chicago Landmark Historic Michigan...
and BP Pedestrian Bridge
BP Pedestrian Bridge
The BP Pedestrian Bridge, or simply BP Bridge, is a girder footbridge in the Loop community area of Chicago, Illinois, United States. It spans Columbus Drive to connect Daley Bicentennial Plaza with Millennium Park, both parts of the larger Grant Park. Designed by Pritzker Prize-winning architect...
, which display their seams prominently.
The viewer physically enters the art when he walks underneath it into its "navel". The omphalos is a "warped dimension of fluid space". In this dimension, solid is transformed into fluid in a disorienting multiplicative manner that intensifies the experience. It is emblematic of Kapoor's work to deconstruct empirical space and venture into manifold
Manifold
In mathematics , a manifold is a topological space that on a small enough scale resembles the Euclidean space of a specific dimension, called the dimension of the manifold....
possibilities of abstract space
Abstract space
Abstract space, in geography, refers to a hypothetical space characterized by equal and consistent properties; a geographic space that is completely homogeneous. All movement and activity would be equally easy or difficult in all directions and all locations within this space...
. The experience is described as a displaced or virtual depth that is composed of multiplied surfaces.
According to project manager Lou Cerny of MTH Industries, "When the light is right, you can't see where the sculpture ends and the sky begins." The sculpture challenges perception by distorting and deforming the surrounding architecture. The skyscraper
Skyscraper
A skyscraper is a tall, continuously habitable building of many stories, often designed for office and commercial use. There is no official definition or height above which a building may be classified as a skyscraper...
s along East Randolph Street to the northeast (Two Prudential Plaza
Two Prudential Plaza
Two Prudential Plaza is a super-tall skyscraper that was built in the Loop area of Chicago, Illinois, United States in 1990. At 995 feet tall, it is currently the sixth-tallest building in Chicago and the thirteenth tallest in the United States. The building was designed by the firm Loebl,...
, and Aon Center
Aon Center (Chicago)
The Aon Center is a modern skyscraper in the Chicago Loop, Chicago, Illinois, United States, designed by architect firms Edward Durell Stone and The Perkins and Will partnership, and completed in 1973 as the Standard Oil Building...
), north (One Prudential Plaza
One Prudential Plaza
One Prudential Plaza is a 41-story structure in Chicago completed in 1955 as the headquarters for Prudential's Mid-America company...
) and northwest (The Heritage
The Heritage at Millennium Park
The Heritage at Millennium Park located at 130 N. Garland Court is a relatively new mixed use tower in Chicago. Completed in 2005 with a height of 631 feet and 57 floors, the building was designed by the architectural firm Solomon Cordwell Buenz .The tower's success lies mainly with its location;...
, Smurfit-Stone Building
Smurfit-Stone Building
Smurfit-Stone Building is a 41 story, 582 foot skyscraper located at 150 North Michigan Avenue in downtown Chicago, Illinois. It was also known as the Stone Container Building and was formerly called the Associates Center...
) are reflected on Cloud Gates surface when viewed from either the east or the west. The sculpture also warps viewers' perception of time by changing the speed of movements such as the passing of clouds.
Although in the conventional sense Cloud Gate is not an opening that leads anywhere in the same way that monumental gates do, it frames a view and is celebratory in the way it creates a ceremonial place. The work is credited with achieving a new level or understanding described as a transubstantiation
Transubstantiation
In Roman Catholic theology, transubstantiation means the change, in the Eucharist, of the substance of wheat bread and grape wine into the substance of the Body and Blood, respectively, of Jesus, while all that is accessible to the senses remains as before.The Eastern Orthodox...
of material, reminiscent of that which the artist experienced during a 1979 trip to India. Kapoor's 1000 Names evolved immediately after this trip; twenty-five years later he created Cloud Gate, an object that emerged from material forms to become immaterial.
Kapoor often relies on tenets of Hinduism in his art, and says that "The experience of opposites allows for the expression of wholeness." Primal dualities that are one, such as the lingam
Lingam
The Lingam is a representation of the Hindu deity Shiva used for worship in temples....
and yoni
Yoni
Yoni is the Sanskrit word for the vagina. Its counterpart is the lingam as interpreted by some, the phallus.It is also the divine passage, womb or sacred temple...
, are important to Indian culture, and Cloud Gate represents both the male and female in one entity by symbolizing both the vagina
Vagina
The vagina is a fibromuscular tubular tract leading from the uterus to the exterior of the body in female placental mammals and marsupials, or to the cloaca in female birds, monotremes, and some reptiles. Female insects and other invertebrates also have a vagina, which is the terminal part of the...
and testicle
Testicle
The testicle is the male gonad in animals. Like the ovaries to which they are homologous, testes are components of both the reproductive system and the endocrine system...
s. Thus, it represents the tension between the masculine and the feminine.
In popular culture
The sculpture has been used as a backdrop in commercial films, notably in the 2006 Hollywood film The Break-UpThe Break-Up
The Break-Up is a 2006 American comedy-drama romance film directed by Peyton Reed, starring Jennifer Aniston and Vince Vaughn. It was written by Jay Lavender and Jeremy Garelick and produced by Universal Pictures.-Plot:...
, which had to reshoot several scenes because the sculpture was under cover for the initial filming. It is also prominently featured in the ending scene of Source Code
Source Code (film)
Source Code is a 2011 American science fiction-techno-thriller film directed by Duncan Jones, written by Ben Ripley, starring Jake Gyllenhaal, Michelle Monaghan, Vera Farmiga, Russell Peters and Jeffrey Wright...
. Director Duncan Jones
Duncan Jones
Duncan Zowie Haywood Jones , also known as Zowie Bowie is an English film director, best known for directing the science fiction films Moon and Source Code .-Childhood and family life:...
felt the structure was a metaphor for the movie's subject matter and aimed for it to be shown at the beginning and end of the movie.
External links
- Cloud Gate on Anish Kapoor's website
- Cloud Gate on Wikimedia
- Millennium Park map
- archive at Chicago TribuneChicago TribuneThe Chicago Tribune is a major daily newspaper based in Chicago, Illinois, and the flagship publication of the Tribune Company. Formerly self-styled as the "World's Greatest Newspaper" , it remains the most read daily newspaper of the Chicago metropolitan area and the Great Lakes region and is...
- City of Chicago Loop Community Map
- MillenniumPark.org Images and description of Kapoor's public sculpture at Millennium Park, Chicago