A popular card game which is a variation of blackjack. It can be played by any small number of players, ideally six. The object is to try to obtain a total of 21 with your cards, and is thus also known as vingt-et-un (Fr 21).
A pontoon is a flat-bottomed boat or the floats used to support a structure on water.
Pontoon boats generally run slower and are less likely to cause harm to themselves or other vessels, and are thus less expensive to insure.
History
The invention of the pontoon motorboat is credited to a Minnesota farmer .
Pontoon bridges have been used by military forces since ancient times.
Applications
Pontoons may be used to support docks or floating bridges.
Pontoons of sophisticated construction and shape are used to support aircraft so they may be operated from water. Such pontoons may also contain landing gear so that the aircraft may operate on both land and water.
Pontoons are useful in the salvage of sunken vessels. The water inside the pontoon is then displaced with compressed air to float the pontoon.
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