NewScientist The Last Word - Tag 'hot' details

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Why do extremely hot things sometimes feel cold? If I put my hand in very hot water, sometimes my skin gets confused and it feels as though I've dipped my hand in cold water. Why does this happen, and at/after what temperature does this occur?
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Asked by Lana
on 2010-09-02 21:32:27

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Categories: Human Body.

Tags: water, cold, hot.

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Why do Iron burns not produce blisters? Whenever I burn myself on the iron, the burnt area of skin goes darker and eventually peels off. However, when I touched a hot pan, I got a blister instead. The burns were caused through contact with hot metal, so why were the results different?
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Asked by Lana
on 2010-06-21 19:56:22

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Categories: Human Body.

Tags: hot, iron, burn, hotpan, blister.

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what is fire made of ? what makes up fire is it a hot gas or what ?
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Asked by 4905abalexbennett
on 2010-01-18 08:53:24

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Categories: Domestic Science.

Tags: fire, hot, of, made, it, is, what.

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Does a room get hotter when you boil a pot of water?

My girlfriend and I were having an argument the other day. Sometimes when it is cold in the kitchen, I turn in the gas hob to warm the place up. The argument is that she claims that the room gets hotter if you put a pot of water on the hob to boil and let the room get steamy. I disagree and think that the room gets just as hot without boiling a pot of water.

Who is right? Does the room get hotter with the pot of water or does the room get just as hot without it?