Swimming

Swimming is the method by which living creatures move themselves through water in a method not involving simply walking on the bottom. Swimming is a popular recreational activity and a competitive sport. There are many health benefits of swimming, but it also entails risks if basic precautions are not taken.

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The human body is composed primarily of water, and thus has a very similar density. But since only roughly 70% of the body is water, it is slightly less dense than the surrounding water, which exerts a buoyant force on it. Thus, staying afloat requires only a slight propelling of water downward relative to the body, and transverse motion only a slight propelling of water in a direction opposite to the direction of intended motion, due to generally low hydrodynamic drag. This propelling is typically accomplished by cupping the hands and using them as paddles, and by kicking the legs to push water away from the body.

Drag: :This page is about forces which tend to slow a moving object. For other uses, see Drag (disambiguation)....

Paddle: The NOUN paddle is a tool, originally a boat propulsion implement for mixing or pushing against liquids, typically in order to propel a boat. Paddles for use in canoes consist of a wooden, fibreglass or metal rod (the shaft) with a handle on one end and a rigid sheet (the blade) on the other end. ...

Swimming related Images and Photos (experimental)

Swimming Upstream	Swimming Competition	Swimming Pool DVD (Widescreen)	Swimming Pool DVD (Widescreen)
Elephant Swimming	"Surf Swimming " August 14 1948	Swimming With The Fish	Capybara Swimming Pantanal Brazil
White Horse Swimming	Dolphins Swimming in the Water	Smooth Newt Swimming Underwater (Triturus Vulgaris) Germany	Young Woman Swimming Underwater