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[NE] Moving Mirrors Make Light From Nothing. - Page 3

post #21 of 67
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Quote:
Originally Posted by MahiMahiMahi View Post
I agree with this statement, but I still don't think it was creating light from nothing.
Think of it like a light switch.

Flip it on and you see the photons, flip it off and you don't.
post #22 of 67
Quote:
Originally Posted by [Adz] View Post
All I really wanted to know.
I don't think it is fair to assume a practical application from a theoretical physics lab...
    
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post #23 of 67
Correct me if I'm worng but from what the article said it sounds like they were creating photons from "ambient" energy? Correct me please this please if I've missed the basics.
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post #24 of 67
Quote:
Originally Posted by redfroth View Post
Correct me if I'm worng but from what the article said it sounds like they were creating photons from "ambient" energy? Correct me please this please if I've missed the basics.
<-Layperson here.

There is a quantum flux, a constantly varying amount of energy in "empty space." Particles create and annihilate at random. You could call this ambient energy, but something doesn't seem accurate about that.

It didn't say explicitly in the article, but if they are truly disentangling the "virtual" photons, they would absorb it into the surface of the mirror before it got a chance to annihilate, and would re-emit the photon as a real photon, and (I think) an anti-photon.

I assume the speed necessary is to prevent the rapid annihilation.
Edited by _02 - 6/6/11 at 9:11am
    
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post #25 of 67
Quote:
Originally Posted by redfroth View Post
Correct me if I'm worng but from what the article said it sounds like they were creating photons from "ambient" energy? Correct me please this please if I've missed the basics.
Read:
http://en.wikipedia.org/wiki/Casimir_effect
http://en.wikipedia.org/wiki/Virtual_particle
http://en.wikipedia.org/wiki/Zero-point_energy
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post #26 of 67
Looks good, but I'll save comment until the peer review. Otherwise I'd get excited about many things that have turned out not to be the case in the scientific community!

Very big development if true though.
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post #27 of 67
Quote:
Originally Posted by rick19011 View Post
There have actually been free energy devices created...


As it relates to the article - good luck getting mass to relativistic speeds w/o using energy.


Free as in "does not cost money on a very small scale using scavenged equipment, and burning food calories to set that equipment up with potential" maybe. Free as in "violating the first law of thermodynamics" not so much.
Edited by willis888 - 6/6/11 at 9:34am
post #28 of 67
Quote:
Originally Posted by _02 View Post
<-Layperson here.

There is a quantum flux, a constantly varying amount of energy in "empty space." Particles create and annihilate at random. You could call this ambient energy, but something doesn't seem accurate about that.

It didn't say explicitly in the article, but if they are truly disentangling the "virtual" photons, they would absorb it into the surface of the mirror before it got a chance to annihilate, and would re-emit the photon as a real photon, and (I think) an anti-photon.

I assume the speed necessary is to prevent the rapid annihilation.
anti photon is a photon.

and the mirrors aren't mirrors and they don't absorb photons.
post #29 of 67
How is this article much different from the one you posted last week:

http://www.overclock.net/technology-...ir-effect.html

Other than:

Quote:
The researchers, based at the Chalmers University of Technology in Gothenburg, Sweden, will present their findings early next week at a workshop in Padua, Italy.
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post #30 of 67
1 step close to faster space travel?
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