Creating a mirror image wave with a jolt
A time-reversed wave is a mirror image of a wave that travels the exact opposite path of the wave that it is a reflection of, back to the first wave's point of origin. Creating these time-reversed waves has required unique antennas but now a group of researchers has done so simply by physically jolting the water container.
Paper:
http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys3810.html
Video credit: Emmanuel Fort
#physics #timereversedwaves #science
So we only need to jolt realty in the 4th dimension just right to go back in time! (Sorry, just imagining the click bait headline this might get at io9 😁 )
ReplyDeleteHudson Ansley I guess you could also make an audio waves experiment analogy shaking a box. I still wonder, how to use this to reverse time, cause things that need to be reversed, are not a simple round wavefront, travelling to symmetrically opposite directions from a point.
ReplyDeleteHudson Ansley and, if you have ideas how to reverse time,... I see retrieving information from the past as a problem (infty.xyz/g/61/en). Past, present, future - exists. How to organize information in such a way we have meaningful access to all of that?
ReplyDeleteMindey I. If Elon Musk is right, just run the simulation backwards
ReplyDeleteHudson Ansley the question is "how". I already seem to have an explanation of the origin of the universe ( how a computer game could have arisen from nothingness: goo.gl/u5P83u ), and so, in principle, I think one could start simulating a new one. However, it seems we don't know our time-location in the current one.
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