Cardboard strip drawn from glass tube extinguishes candle.

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(C)Properties of Heat and Matter - C+20: Convection

Cardboard strip drawn from glass tube extinguishes candle. A cardboard strip in a glass column is placed over a lighted candle. The candle continues to burn... When the cardboard strip is withdrawn, the candle goes out. CONVECTION.
UCB Index: 
C+20+10
PIRA Index: 
4B20.25
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