Question

Candles were used in ancient times as alarm clocks.
Nails were put
the wax of a candle at equal distances. The candle was placed
na metal plate.
Can you say how this alarm clock worked?
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Answer 1

Hola mate!!! Here is ur ans:-

⭕. A candle clock could be easily transformed into a timer by sticking a heavy nail into the candle at the mark indicating the desired interval. When the wax surrounding the nail melts, the nail clatters onto a plate.

✳️Hope it helps u!!

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