Strange question..

DnetMHZ

Diamond Member
Apr 10, 2001
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If you were in a completely sealed dark room that was completely lined with mirrors, and you turned on a flashlight for a second, how long would the
light last?

ponder that..

that is all

 

hoyaguru

Senior member
Jun 9, 2003
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I think someone asked this on the straight dope, and if I remember correctly, a mirror does not give back as much light as is shone into it, so it wouldn't bounce around forever.
 

isaacmacdonald

Platinum Member
Jun 7, 2002
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not for appreciably longer than a second.

Even ordinary mirrors reflect a majority of the source light, but considering the speed at which light travels it will take a very small amount of time for the mirrors to completely absorb the light.
 

habib89

Diamond Member
Jan 17, 2001
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it would last a second.. mirrors can't amplify light or anything.. you will never get 100% of the light going in to come back out.. so each reflection of light will degrade.. and since it moves so fast, light will be gone as soon as you turn off your flashlight
 

bootymac

Diamond Member
Aug 20, 2001
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So if you were in a completely sealed dark room that was completely lined with mirrors, and you turned on a vibrator for a second, how long would the
vibrations last?

ponder that...
 

DnetMHZ

Diamond Member
Apr 10, 2001
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Originally posted by: bootymac
So if you were in a completely sealed dark room that was completely lined with mirrors, and you turned on a vibrator for a second, how long would the vibrations last?

that is for a whole 'nother thread! ;)