by John Bohannon
Posted: 02/23/2014 9:28 am EST Updated: 02/23/2014 9:59 am EST
Nothing we have ever built can ply water as efficiently as the humble jellyfish. This video shows the pressure systems created with each of its thrusts, with vortices of low pressure (blue) rolling from the front of its bell-shaped body that meet up with the bulge of high pressure (red) that forms behind it: