science question: Which makes more heat? - TennisForum.com
 
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post #1 of 9 (permalink) Old Jun 21st, 2006, 03:30 AM Thread Starter
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science question: Which makes more heat?

this is a serious science question, which makes more heat 2 tea lights (really small candles) or a 60 watt light bulb.

i ask because right now in my room its maybe 245 degrees (maybe a little less) and i want to stay as cool as posible. there is really nothing left for me to take off clothes wise, and i am still HOT!!!!

jesus!! its fucking hot in here!!!

"racism is dead, it died when MLK walked on a bridge and freed the slaves. Now we have a socialist Kenyan president who is not an American and if anyone mentions race they are a reverse racist (while racism is dead, reverse racism is alive and well.) #whattheyteachyouatfox"
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post #2 of 9 (permalink) Old Jun 21st, 2006, 04:49 AM
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a candle burns at ~ 1700 C and a filament in a bulb is about 2500 C but I think the candle would put out more heat (temperature) since the filament is surrounded by a vacuum which does not transmit heat as well as air.
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post #3 of 9 (permalink) Old Jun 21st, 2006, 05:00 AM
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I agree. Lightbulb doesn't give direct heat but direct light, while a candle does both.

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post #4 of 9 (permalink) Old Jun 21st, 2006, 05:17 AM
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if you want to test, put your hand a few inches over a flame and see how long you can hold it there vs the light bulb. I bet it's a lot shorter.
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post #5 of 9 (permalink) Old Jun 21st, 2006, 05:22 AM
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I would assume that the 60 watt lightbulb would produce the most heat. Most of the energy given off by a lightbulb is heat.
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post #6 of 9 (permalink) Old Jun 21st, 2006, 07:49 AM
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I'd have to say the light bulb. Light bulbs don't really generate light energy. The light energy is just a by product of the heat energy being passed through the very thin filament.

As long as you aren't right next to the candle, it will be cooler since the heat will dissipate.
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post #7 of 9 (permalink) Old Jun 21st, 2006, 07:57 AM
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My light bulbs don't generate any heat... Seriously, they can be on for like 5 hours and they are cool to the touch. Gotta love the fluorescents..

Jiggly.. get a fan sweety!!!
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post #8 of 9 (permalink) Old Jun 21st, 2006, 08:04 AM Thread Starter
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Quote:
Originally Posted by kenny
My light bulbs don't generate any heat... Seriously, they can be on for like 5 hours and they are cool to the touch. Gotta love the fluorescents..

Jiggly.. get a fan sweety!!!
mine is hot to the touch so i dont think its fluorescent.

ummm fan... hmmmm... i thought about it. but i cant go shopping nekked there are laws against that i think.

"racism is dead, it died when MLK walked on a bridge and freed the slaves. Now we have a socialist Kenyan president who is not an American and if anyone mentions race they are a reverse racist (while racism is dead, reverse racism is alive and well.) #whattheyteachyouatfox"
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post #9 of 9 (permalink) Old Jun 21st, 2006, 01:26 PM
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what kind of light bulb. if it is with wolfram wire (or however it's said in english) than it probably generates more heat because only 2% of energy goes to light, and rest is heat. Others are much better with as if i recall good 30+% going to light
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