• Stacking (chemistry)
  Stacking (chemistry)
  In chemistry, pi stacking refers to attractive, noncovalent interactions between aromatic rings. These interactions are historically thought to be important in to base stacking of DNA nucleotides, protein folding, template-directed synthesis, materials science, and molecular recognition, although...
  
  
• Stacking (video game)
  Stacking (video game)
  Stacking is an adventure/puzzle video game developed by Double Fine Productions and published by THQ; like Double Fine's previous Costume Quest, it is a smaller title created during the development period of Brütal Legend, and was released in February 2011 for the Xbox Live Arcade and PlayStation...
  
  , a 2011 game from Double Fine involving matryoshka doll
  Matryoshka doll
  A matryoshka doll is a Russian nesting doll which is a set of wooden dolls of decreasing size placed one inside the other. The first Russian nested doll set was carved in 1890 by Vasily Zvyozdochkin from a design by Sergey Malyutin, who was a folk crafts painter at Abramtsevo...
  
  s
• A gang signal
  Gang signal
  A gang signal is a visual or verbal way gang members identify their affiliation. This can take many forms including slogans, tattoos or hand signs...
  
   made with the hands
• Sport stacking
  Sport stacking
  Sport Stacking is an individual and team sport that involves stacking specialized plastic cups in specific sequences in as little time as possible. The governing body setting the rules is the WSSA...
  
  , played using plastic cups
• A film directed and produced by Martin Rosen
  Martin Rosen (director)
  Martin Rosen is an American film and theater director, producer and writer. Rosen is known for the animated adaptation of Richard Adams's Watership Down.He is founder and owner of film/theater company Nepenthe.-Career:...
  
  
• Stacking (television)
• A type of ensemble learning
  Ensemble learning
  In statistics and machine learning, ensemble methods use multiple models to obtain better predictive performance than could be obtained from any of the constituent models....
  
   method in machine learning
  Machine learning
  Machine learning, a branch of artificial intelligence, is a scientific discipline concerned with the design and development of algorithms that allow computers to evolve behaviors based on empirical data, such as from sensor data or databases...
  
  
• A technique used in reflection seismology
  Reflection seismology
  Reflection seismology is a method of exploration geophysics that uses the principles of seismology to estimate the properties of the Earth's subsurface from reflected seismic waves. The method requires a controlled seismic source of energy, such as dynamite/Tovex, a specialized air gun or a...
  
   for improving signal-to-noise ratio
  Signal-to-noise ratio
  Signal-to-noise ratio is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined as the ratio of signal power to the noise power. A ratio higher than 1:1 indicates more signal than noise...
  
   in seismic surveys
• Amusement ride
  Amusement ride
  Amusement rides are large mechanical devices that move people to create enjoyment. They are frequently found at amusement parks, traveling carnivals, and funfairs.-Notable types:*Afterburner*Ali Baba*Balloon Race*Booster...
  
   vehicles stopping and "piling up" due to the track ahead being occupied

See also

• Stack (disambiguation)
• Block stacking problem
  Block stacking problem
  In statics, the block-stacking problem is the following puzzle:Place N rigid rectangular blocks in a stable stack on a table edge in such a way as to maximize the overhang....
  
  , a puzzle in statics
• Shift-and-add
  Shift-and-add
  The shift-and-add method is a form of speckle imaging commonly used for obtaining high quality images from a number of short exposures with varying image shifts. It has been used in astronomy for several decades, and is the basis for the image-stabilisation feature on some cameras...
  
  , renamed image-stacking method, a form of speckle imaging
• Sphere packing
  Sphere packing
  In geometry, a sphere packing is an arrangement of non-overlapping spheres within a containing space. The spheres considered are usually all of identical size, and the space is usually three-dimensional Euclidean space...