Re:Water compresses under a high gradient electric field
by CamperBob2 on Monday July 02, 2018 @06:53PM
(#17446052)
Coincidentally, I just watched a great video by Ben Krasnow yesterday that suggests that the answer to fooker's question is indeed "Yes." There are other well-known principles along these lines, ranging from piezoelectricity to the Seebeck and Peltier effects, and it's almost more of a rule than an exception for such effects to behave symmetrically.
Glowing plasma created by a high speed jet of water: https://www.youtube.com/watch?v=_vTq8oGpqwM&list=LLaIdy5TkkQ...
He definitely has the "whole lot of mechanical force" thing going for him, considering that he's about 2 psi away from fragging himself with a hydraulic cylinder.
Re:Water compresses under a high gradient electric field
by rdlecler1 on Monday July 02, 2018 @05:23PM
(#17445433)
Implication: Depending on the energy input, couldn’t you create an engine from this? Sounds like a perpetual motion machine.
Re:Water compresses under a high gradient electric field
by stephengillie on Monday July 02, 2018 @05:30PM
(#17445480)
This effect does convert energy from mechanical to electrical, and so could be used in a type of engine. But AFAIK there would still be inefficiencies causing this conversion to be less than 100%, and so sadly not a perpetual motion machine.
> The compression is only 3 percent, but that pressurizes the water—it's equivalent to 100 atmospheres
Although, that's not uncommon for ice giants, so it might be causing part of Ouranos (aka Uranus) magnetic field.
> The troposphere is thought to have a highly complex cloud structure; water clouds are hypothesised to lie in the pressure range of 50 to 100 bar[1]
[1] https://en.wikipedia.org/wiki/Uranus