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There are trick birthday candles available in market, which lights on its own even after you put it off. How do they work?

Tags: money, careers, education
Asked by FriendsRfriends, 28 Feb '10 10:51 am
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Answers (1)


The difference between a normal candle and a trick candle is what happens just after you blow it out. When you blow out a normal candle, you will see a thin ribbon of smoke rise up from the wick. This is vaporized paraffin (candle wax). The wick ember you get when you blow out the candle is hot enough to vaporize the paraffin of the candle, but it isn't hot enough to re-ignite it. If you blow across the wick of a normal candle right after you blow it out, you might be able to get it to glow red-hot, but the candle won't burst into flame.

Trick candles have a material added to the wick that is capable of being ignited by the relatively low temperature of the hot wick ember. When a trick candle is blown out, the wick ember ignites this material, which burns hot enough to ignite the paraffin vapor of the candle. The flame you see in a candle is burning paraffin vapor.

What substance is added to the wick of a magic candle? It's usually fine flakes of the metal magnesium. It doesn't take ...more
Answered by RANJAN KARNAD, 28 Feb '10 11:22 am

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