Gerrit de Veer
Encyclopedia
Gerrit de Veer was a Dutch officer
on Willem Barentsz' third voyage (1596) in search of the Northeast passage. De Veer kept a diary of the voyage and in 1597 was the first person to observe and record the Novaya Zemlya effect
, and the first westerner to observe hypervitaminosis A
caused by consuming polar bear liver.
Seafarer's professions and ranks
Seafarers hold a variety of professions and ranks, and each of these roles carries unique responsibilities which are integral to the successful operation of a seafaring vessel...
on Willem Barentsz' third voyage (1596) in search of the Northeast passage. De Veer kept a diary of the voyage and in 1597 was the first person to observe and record the Novaya Zemlya effect
Novaya Zemlya effect
The Novaya Zemlya effect is a polar mirage caused by high refraction of sunlight between atmospheric thermoclines. The Novaya Zemlya effect will give the impression that the sun is rising earlier than it actually should and depending on the meteorological situation the effect will present the sun...
, and the first westerner to observe hypervitaminosis A
Hypervitaminosis A
Hypervitaminosis A refers to the effects of excessive vitamin A intake.-Presentation:Effects include* Birth defects* Liver problems* Reduced bone mineral density that may result in osteoporosis* Coarse bone growths...
caused by consuming polar bear liver.