Swimming


 
 
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.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

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

~ Table of Content ~

Introduction
Technique
History
Competitive swimming
Recreational swimming
Occupational swimming
Swimming for exercise
Health risks
Clothing
See also
 
FR: Natation


 

~ Related Subjects ~

Wood (1) - Canoe (1) - Fibreglass (1) - Kayak (1) - Metal (1) - Paddle (1) - Drag (1) - Propulsion (1) - Boat (1) - Liquid (1) -
 

~ Community ~

History Forum
Come and discuss about History, Civilizations, Historical Events and Figures
History Web-Ring
A community of sites, blogs and forums dedicated to History. Do not hesitate to submit your site.