interesting perspective

Graham Hawkes flies through the ocean | Video on TED.com (http://www.ted.com/talks/graham_hawkes_flies_through_the_ocean.html)

Interesting talk. But you know he's all wet when he says there is no gravity. Just throw a rock in the water and see what happens. :) The only reason fish can swim so easily upward is that they have a swim bladder which makes them somewhat bouyant which offsets the effect of gravity. Lots of other sea creatures, that don't have a swim bladder sink like the proverbial stone.

but the distinction he's making about gravity is that we think in gravitational terms being terrestrial beings where as fish and
beings of the sea except those that crawl on the bottom think in different terms based on the fluidity of motion in water where you can suspend in that medium with much less effort.

on land we jump up and fall down...and there is no suspending
by comparison.....in even if it's only temporary....

we can float while air is in our lungs in the water and begin to sink upon exhaling the air...

But he is extrapolating that ability to all sea creatures when in reality only a small portion have that ability. Its like saying gravity doesn't affet terrestrial life and pointing to birds.

lets just say it (gravity) affects sea life on a slower scale....

his vision changed immensely when he saw the loop de loops
the ray could make.... he realized his flying thru water craft
had to have that same capability so he could "dance"

the problem as i saw it was the rigidity of his lay down proto-type
could not perform anywhere close to what the ray could do
....so he has to re design it completely

it'll be interesting to see what he comes up with