The Discovery of Archimedes' Principle
water displacement principle
As stated by Archimedes in his discovery.
In mechanics Archimedes discovered fundamental theorems concerning the centre of gravity of plane figures and solids. His most famous theorem gives
the weight of a body immersed in a liquid, called after him, Archimedes' principle - that a body immersed in a fluid is subject to an upward force
(buoyancy) equal in magnitude to the weight of fluid it displaces.
What this means is that every step in to the water has an equal force that is pushing back.
As to the displacement formula, you see there shoes acts like a vessel or boat that displaces the water for the fraction on a second.
Just remember this "old boat-builders" saying:
"8 pints, 8 pounds, the world around... "
Thus, an easy way to remember the formula for what you are trying to do.
8 pints weighs 8 pounds
8 pints in a gallon = 8 pounds in a gallon
8 gallons in 1 cubic foot...
thus: 8 gallons x 8 lbs each = 64 pounds in one cubic foot.
Whala! 64 lbs... Wouldn't you know this just happens to be the weight of 1 cubic foot of seawater... (fresh water of course is slightly less - 62)
I build boats all the time... I have always used this formula to determine bouyancy... and to estimate waterline... and thus draft & freeboard.
As in the video you can see that there steps bare just enough wait to displace the water for them to take the next one. This is all physics and math
but not imposable just a modification of how to walk on water only.
If you do the math it will show that this doable and explainable but not imposable. They are the first ones to experiment with it and have some type
of success with it. I for one believe it and hope that they can take it and make a new sport out of it. Who knows maybe in the next Olympics.
[edit on 9-5-2010 by jsettica]
[edit on 9-5-2010 by jsettica]