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If you built a house made of mirrors, turned a light on then off, would the house stay continuously illuminated?

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No, light travels at, well, the speed of light. Once the light is turned off it vanishes at the same speed it came on.

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670 million mph :-) that speed is mind-boggling
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299,792,458 m/s I studies physics when I was twelve. Memorized this :)
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No

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no but that would be cool though.

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Hmmmm....... Thought provoking!! I like it!! But probably not...

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Definitely...=) It'd be an optical illusion...

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Umm...no
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it is supposed to be so as it reflects light, there is a palace in Jaipur, India, with mirrors all over the room, when light is on it is very bright, the moment u switch it off its dark.

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Negative? But one living in a house made of mirrors is bound to bump there head enough times that they may fill the need to ask such a question ;-)

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No, but house full of mirrors would be cool and freaky at same time.

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No, it would just leave the mirrors to be a dark-greenish color, I'm guessing.

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Well what if you had a house made of mirrors with only one light and you turned the light on. Would it light up the whole house with one light?

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I'm not sure, but the light needs a source. The source is your light ( a torch, if you want ). Source gone, light gone. Simple. ?

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Mirrors only reflect a small portion of the light hitting them. As soon as you turn the light off the room would go dark because it would be absorbed by the mirrors.

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No, even the best mirrors absorb part of the light that hits it. Light travels so quickly, that it bounces a hundred times off the mirrors and ends up completely absorbed in a fraction of a second, too quickly for humans to notice.

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This, I like this question a lot :) The answer would be YES, but the illumination would be completely undetectable to the human eye, instantly. After all, even light is not instantaneous. But you wouldn't be able to see the light because the light would be 'on' in reflections so far away from you that it wouldn't make a difference, if that makes any sense.