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Physics 23 Online
OpenStudy (anonymous):

Couldn't mirrors be used to reflect, enhance and as a communication device for electric/tronic signals visa v solar, Internet, microwave, and obviously batteries. Mirrors could multiply wireless energy. Like what if u reflected elecsig from source to a another source, exponentially magnifying signal. Mirrors on the wall as Wayne says in American hiphop

OpenStudy (shane_b):

I think you're confusing magnification with amplification. Mirrors can magnify light but they can't amplify it. In simple terms, the amount if light that strikes the surface of a magnifying mirror (a concave mirror) is the same amount of light that is reflected from it. http://www.ehow.com/how-does_5016150_magnifying-mirrors-work.html

OpenStudy (kainui):

Actually, what about photomultiplier tubes?

OpenStudy (shane_b):

My impression is that the original poster is talking about simple mirrors...thinking you could get amplification "for free" when you can't.

OpenStudy (anonymous):

We already have a wonderful "electrical mirror" device that allows you to channel electrical energy along as narrow a beam as you like, for miles and miles. You can even make the electrical energy beam go around corners or in circles. It's called a wire.

OpenStudy (kainui):

Fiber optics?

OpenStudy (shane_b):

Even in a (perfect) wire though, you're not getting more out of it than you put into it :)

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