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Old 08-26-2016, 11:26 AM
watchwolf49 watchwolf49 is offline
Join Date: Dec 2009
Location: State of Jefferson
Posts: 8,500
Originally Posted by boffking View Post
If humans ran fast enough, could we run across water? ... [snip]
Originally Posted by Chronos View Post
So, watchwolf, what you found is that if the human has almost no lift, then its trajectory will be almost the same as if it had no lift? I fail to see how that's an interesting result at all, and it's certainly not a relevant result to the question at hand, which concerns a human with a large amount of lift.
Right, the Factual Answer to the OP's General Question is no, humans cannot run across water. Zack29's citation states this, it makes common sense and I've experimented up at the lake the other day.

Notwithstanding various internet hoaxes, humans are apparently incapable of walking or running on water. In their classic study (Glasheen, McMahon; 1996) of the Basilisk lizard, Glasheen and McMahon calculate the unsurprising result that humans are far too big and weak to splash their feet hard enough to hold their weight. According to their estimates (ibid.), humans would be able to run on water only if they were able to slap water at speeds >30 m/s, which they estimate would require about 15 times a humanís available muscle power.
Humans do not have enough lift, there's no "if" about it. Bucketybuck presents the better counter-argument; it's not running, it's momentum; certainly better than humans are actually 15 times stronger than they really are.