Subject: How does the 'musical' birthday candle work?
Date: Thu Mar 25 07:00:12 1999
Posted by Roberta Marshall
Grade level: 4-6
School: Luella Merrett Elementary
City: Ft. Worth State/Province: TX
Area of science: Engineering
Specialized candles are on the market that when lit, play "Happy
Birthday" much like the electronic birthday cards. How does this
work? There's a metal strip (aluminium?) that runs through
the candle from the wick to the base so we're sure it's triggered
by heat transfer but want more information.
Re: How does the 'musical' birthday candle work?
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