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Author Topic: can you get moon burn?  (Read 11438 times)

paul.fr

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can you get moon burn?
« on: 08/06/2007 10:36:42 »
does the moon reflect enough light to give you moon burn?


 

Offline syhprum

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can you get moon burn?
« Reply #1 on: 08/06/2007 11:35:22 »
To get a burn you have to raise the skin temperature to about 55C, this is very easily done with the radiation from the Sun using a short focus lens (as the F number approaches zero the temperature of the focused spot tends towards the temperature of the radiation source)
I do not think any conceivable lens could have an F number that would do this for moonlight
 

Offline daveshorts

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can you get moon burn?
« Reply #2 on: 08/06/2007 12:37:27 »
I guess the analogy is with sunburn, the moon does reflect some UV but it is only about half as good at reflecting it as normal light, and the moon is about 500 000 times dimmer than the sun, so you are talking about 1000 000 times less UV. which means that you would need a huge concentrating parabolic mirror - of the order of 1 square km to get UV levels anywhere near that of the sun.

So practically no
 

Offline hemline

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can you get moon burn?
« Reply #3 on: 06/10/2007 02:15:48 »
What type of solar event could cause the moon to be harmful to humans?  What would it take?
 

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can you get moon burn?
« Reply #3 on: 06/10/2007 02:15:48 »

 

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