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://www.iheartpodcastnetwork.com

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://www.iheartpodcastnetwork.com

How can an electric toothbrush recharge its batteries?

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

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How can an electric toothbrush recharge its batteries?

How can an electric toothbrush recharge its batteries?