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  #1  
Old 07-12-2007, 03:02 PM
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Default Using mirrors?

Well, last year in Physics I saw my teacher have a little cabinet with mirrors all around inside and a t12 florescent light at the top. just wondering, I might implement the idea, but will mirrors be a better reflector material than mylar? Or will it cause burn?

BTW my teacher said it was for sterilizing goggles when I asked if I could be it off of her. didnt work...

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Old 07-12-2007, 03:08 PM
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No good, mirrors absorb light.
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Old 07-12-2007, 03:13 PM
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No good, mirrors absorb light.
How do mirrors absorb light, I'm really confused on this one, i thought they reflected it.
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Old 07-12-2007, 03:16 PM
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Mirrors waste energy by reflecting only a small fraction of the light that falls on them.


When light, which, like radio waves, is a form of electromagnetic radiation, strikes a metallic mirror the electrons in the metal move just as they do when a radio signal strikes an antenna. Pushing electrons around takes energy, which dims the reflected image.
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Old 07-12-2007, 03:18 PM
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Originally Posted by mogie View Post
Mirrors waste energy by reflecting only a small fraction of the light that falls on them.


When light, which, like radio waves, is a form of electromagnetic radiation, strikes a metallic mirror the electrons in the metal move just as they do when a radio signal strikes an antenna. Pushing electrons around takes energy, which dims the reflected image.
The mirrors still reflect light though, they dont absorb it.
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Old 07-12-2007, 03:19 PM
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I didn't say they did.
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Old 07-12-2007, 03:21 PM
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I never said you did. This is getting silly now, I dont have time for these childish games.
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Old 07-12-2007, 03:48 PM
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the greeks used mirrors and the sun to burn roman ships, so in my mind it must reflect light
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Old 07-12-2007, 03:51 PM
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They used their shields which were polished to shit..
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Old 07-12-2007, 04:07 PM
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Here is a post i started to ask the very same question.... Mylar vs. Aluminum Foil vs. Mirrors
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