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How do trick birthday candles work?

Kategorie: Wissen und Wissenschaft
Kanal: BrainStuff
Datum: 5. Februar 2016, 16:00
Stufe: B1-B2 (Mittelstufe)

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Candles are simple yet ingenious light-producing devices, and it only takes one extra ingredient to turn them into trick candles. Find out how regular and trick candles work in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers