video 1 (response measurement): https://aip.scitation.org/doi/suppl/10.1063/1.5129958/suppl_...
video 2 (picking up block): https://aip.scitation.org/doi/suppl/10.1063/1.5129958/suppl_...
video 3 (hexapod): https://aip.scitation.org/doi/suppl/10.1063/1.5129958/suppl_...
video 4 (human climbing tiled wall): https://aip.scitation.org/doi/suppl/10.1063/1.5129958/suppl_...
video 5 (human climbing concrete wall): https://aip.scitation.org/doi/suppl/10.1063/1.5129958/suppl_...
Also, wouldnt this be easily defeatable with small dowel protruding "thorns" - or dimples, as on a golf ball - maybe alternating convex/concave dimple patterns? or other ridges?
Will the seal slowly evaporate away or absorb into a porous surface like concrete?
[0] https://en.m.wikipedia.org/wiki/File:Phase_diagram_of_water....
Some more info: http://sciencechatforum.com/viewtopic.php?nomobile=1&f=77&t=...
I believe he has a couple of patents on the technology, but not sure he'll ever get around to making something practical with it.
I watched multiple of the videos he has listed and from what I can tell the phenomenon he is demonstrating is real and reproducible.
Whether or not he's crazy, who's to say?
Most of our current propulsion and lift mechanisms are based on momentum transfer, which has many problems in air. His work makes me think there are a lot more efficient mechanisms to be discovered.
https://aip.scitation.org/na101/home/literatum/publisher/aip...
https://aip.scitation.org/na101/home/literatum/publisher/aip...
(from the actual paper link from czr: https://aip.scitation.org/doi/10.1063/1.5129958)
One way of explaining it would be that instead of leaking air, it leaks sealing water without suffering dpressurization in the process. Really neat.
Whereas the suction cups in the article, use spinning water as a way to seal suction cups on rough surfaces (the water fills in crevices of rough surfaces I presume, allowing the suction cup to seal). The water is also spinning (i.e. it has an inertial force) so that it counteracts the vacuum pressure in the center of the suction cup.
Could anybody explain in more detail?
(Plus it looks much more sci-fi.)
I wonder if some sort of jelly would work to do the same thing, like a snail. Or a dynamic cup surface that conforms to the wall better.
Sounds like a "momentum transfer" vacuum pump, shaped so that the output side bleeds out along the rim.
https://en.wikipedia.org/wiki/Vacuum_pump#Momentum_transfer_...