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We don't know the infintismal or infinite ends of the electromagnetic spectrum. If the universe has boundaries, then surely there is a single standing wave that traverses it i.e. wavelength = 1 (lemmy.world)

submitted 2 months ago by Christobootswiththepher@lemmy.world to c/askphysics@lemmy.world

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There are the 3 considered outcomes for the universe - continued expansion, reaching a static astrophysical plane or gravitational collapse. No matter the outcome, if there is a standing wave the length (why would you have 1.5 times or anything other than 1 !?) Then under the expansion, statis and contraction scenarios, only one of these would ever reach stasis, all other scenarios have a standing wave in flux.

In ATR FTIR (attenuated total reflectance Fourier transform infra-red spectroscopy) evanescent waves penetrate outside the medium to complete the Quantisation rule. Would the same occur if we did try produce a 1.2 times wave?

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[–] givesomefucks@lemmy.world 3 points 2 months ago (1 children)

There are the 3 considered outcomes for the universe - continued expansion, reaching a static astrophysical plane or gravitational collapse.

Nah. There's a shit ton more.

Penrose has been saying for a while it's more like that Katy Perry song Fireworks...

Just big bangs happening all over, than fading out or crossing boundaries to others. Until they "bump" into ours, we would have no way to detect them due to us and them constantly expanding.

That's not even getting into more and more proof that our universe exists in a black hole, and there is no way of knowing what position of nested universes we're in. Our black holes could contain a universe that contains a black hole containing another universe...

And it can go infinitely in the other direction as well.

[–] Christobootswiththepher@lemmy.world 1 points 2 months ago

Absolutely.

I read Cycles of Time by Penrose and liked what he had to say, although I did not find some arguments bullet proof. How do we test these hypotheses?

How could we interact with such large wavelengths of EM radiation?

For the short end I think high energy materials are shorter lived, so I haven't thought about this end as much.

If I generated a wavelength that was not a single multiple of the the universe (i.e. does not quantise easily into the universe) would we create evanescent like interaction with any edge?