| Topic: |
Science > Physics |
| User: |
"Vijayakumar" |
| Date: |
19 Nov 2004 12:39:30 AM |
| Object: |
Theory of swimming |
Hi,
I have one doubt in the theory behind swimming. I think its Newton's
third law that is behind the push that makes us float in water. My friends
says its buoyancy. Please clarify if what law can be applied for this?
--
Vijay
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| User: "John T Lowry" |
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| Title: Re: Theory of swimming |
19 Nov 2004 09:40:28 AM |
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"Vijayakumar" <vijbalas@cisco.com> wrote in message
news:1100846634.706677@sj-nntpcache-3...
Hi,
I have one doubt in the theory behind swimming. I think its
Newton's
third law that is behind the push that makes us float in water. My
friends
says its buoyancy. Please clarify if what law can be applied for this?
--
Vijay
Taking the freestyle stroke as example, it's both. While legs may be
purely propulsive, the arm strong is down (much stronger than the
finishing up) and back at the same time.
John Lowry
Flight Physics
(and former member of the UT Austin swimming team)
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| User: "Uncle Al" |
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| Title: Re: Theory of swimming |
19 Nov 2004 10:41:08 AM |
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Vijayakumar wrote:
Hi,
I have one doubt in the theory behind swimming. I think its Newton's
third law that is behind the push that makes us float in water. My friends
says its buoyancy. Please clarify if what law can be applied for this?
Balloon. Water. Add one to the other. Does the balloon float? Does
it push?
Congratulations! In 2004 you are manifestly more ignorant than
Galileo in 1638. A lesser mentality wouldn't have the wattage to
breathe.
--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf
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| User: "Sam Wormley" |
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| Title: Re: Theory of swimming |
19 Nov 2004 12:48:21 AM |
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Vijayakumar wrote:
I have one doubt in the theory behind swimming. I think its Newton's
third law that is behind the push that makes us float in water. My friends
says its buoyancy. Please clarify if what law can be applied for this?
Rock fall to the bottom of the ocean
Archimedes Principle
http://scienceworld.wolfram.com/physics/ArchimedesPrinciple.html
Buoyancy Force
http://scienceworld.wolfram.com/physics/BuoyancyForce.html
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