Podcasts > Kategorie: Wissen und Wissenschaft > Kanal: BrainStuff

How can an electric toothbrush recharge its batteries?

Kategorie: Wissen und Wissenschaft
Kanal: BrainStuff
Datum: 29. Juni 2015, 21:35
Stufe: B1-B2 (Mittelstufe)

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An electric toothbrush gets power from its base without the help of metal contacts. Find out how this sealed system works in the following podcast from HowStuffWorks.com. Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers