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Old 05-11-06, 07:44 PM   #11
gettin2dizzy
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hehe. i just looked at that again and either i've invented a new equation, or its wrong. I wouldn't care but thats what i'm trained to do and what i have to deal with everyday, all day. hehe i was mixing 2 equations.
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Old 05-11-06, 07:49 PM   #12
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theres no such thing as 'heat'. the sun gives off energy which isn't absorbed in space- as there is nothing to absorb it -so it reaches earth. And your suntan comes from UV rays. If you were in space you would burn (theres nothing to reflect the light to show how bright it is), but that would be the last of your worries. Even in an aircraft your subjected to 'cosmic radiation'. In space you'd be cosmic toast! How high up have you ridden your sv?
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Old 05-11-06, 07:49 PM   #13
Law
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Quote:
Originally Posted by Quiff Wichard
BUT-

how can the heat travel to earth through this "space" thats cold and then re heat to give me a suntan!??...

or r u saying its constantly that hot but cos of the make up of the atmosphere at that height it cant be felt..? is it like insulating?

oo I am not thick I am quite educated but stuff liek this makes me feel like jade goody !!
There's 3 different type of heat transfer, radiation, convection and conduction.

Heat from the sun gets to us by radiation which can travel through a vacuum.

HTH
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Old 05-11-06, 07:51 PM   #14
tigersaw
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[quote="Quiff Wichard"
how can the heat travel to earth through this "space" thats cold and then re heat to give me a suntan!??...

/quote]

Its the suns 'radiation' (or rays if you like) that causes things to heat up - the heat itself does not travel from the sun.
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Old 05-11-06, 08:00 PM   #15
Quiff Wichard
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ahahahahaha all is becoming clearer now !!...



carry on..

this is good and grandy will get some sleep.!!

I am printing it off for him to read.
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Old 05-11-06, 08:07 PM   #16
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Also don't forget that it's not the 'heat' that gives you a suntan/burn. It's all energy at the end of the day but it's the UV spectrum of solar radiation that burns. After all it doesn't matter how hot it is at night you aint never getting no tan and that's because the heat you feel is the longwave radiation reflected of the earth's surface and bounced back of the atmosphere.
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Old 05-11-06, 09:24 PM   #17
Ed
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Ooh I'd forgotten all about O level physics with Mr Lewis, 1975 - 1977
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Old 05-11-06, 10:08 PM   #18
kwak zzr
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i was 3 when you were doing that Ed.
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Old 05-11-06, 10:31 PM   #19
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Quote:
Originally Posted by Ed
Ooh I'd forgotten all about O level physics with Mr Lewis, 1975 - 1977
1977 I finished infants and started primary school. Coincidentally my teacher (at primary school) was Miss Lewis
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Old 05-11-06, 10:35 PM   #20
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Give him another Guinness and tell him not to worry as all the big important questions will be answered by a puppet in Government pretty soon.
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