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Originally posted by jsettica 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.
Of course all the physics involved tells us this is completely impossible...however, it may have something to do with their shoes and form...think about when you impact water really quickly...it can become as hard as cement if you hit it hard enough...perhaps with the right shoes, combined with the curvature of the run creates conditions that allow the water surface to sustain the weight of a human if your steps are quick and solid enough...you've got to "keep that skimming sensation going" as he states...
Lets look at the physics of this... These are average sized guys, so lets say a size 10 shoe. The surface are they could push at most is one gallon per shoe. Thrust to weight to stay a float. LEts guess their weight at about 175 pounds. This meane they would need to push the water back at about 40 feet per second, just a rough estimate, considering that water is a liquid and goes down back and to the sides. That would work out to almost 50 miles per hour. I don't care what their form is, they are no where near that speed. And to be honest that would be in an ideal situation, I am not even taking things such as drag or anything into the equation
Originally posted by ignorant_ape
sigh
please research the following :
the average body weight of a jesus christ lizard
the average surface area of its rear footprint
the forward velocity with which it runs
the rquequency of its foot falls [ how many times its feet touch the water / secpond - its linked to its forward velocity
and lastly - what it does with its tail
when you understand all these points - it will dawn on you why the jesus christ lizard can run on water - and a human cannot
Originally posted by K_OS
Guys, are you serious?? Lets look at the physics of this... These are average sized guys, so lets say a size 10 shoe. The surface are they could push at most is one gallon per shoe. Thrust to weight to stay a float. LEts guess their weight at about 175 pounds. This meane they would need to push the water back at about 40 feet per second, just a rough estimate, considering that water is a liquid and goes down back and to the sides. That would work out to almost 50 miles per hour. I don't care what their form is, they are no where near that speed. And to be honest that would be in an ideal situation, I am not even taking things such as drag or anything into the equation. That would be like us saying that if we wear a shirt that comes from our fingertips to our feet we can flap our wings and fly.
They weigh too much, unless they have magically turned their bones hollow like birds and dropped their weight down to 20 or 25 pounds, this just isn't happening. There is something submerged, that is why the sudden drop off at the end. I wish this was true more than anyone but its not happening. We haven't quite succeeded at breaking the laws of physics yet.
Be cool,
K_OS
Originally posted by AOmonsta
Well let me try this again then: