<p>The natural world can be broken down into atoms. And those atoms can be broken down even further. Will the discovery of smaller and smaller particles ever stop?</p>

The natural world can be broken down into atoms. And those atoms can be broken down even further. Will the discovery of smaller and smaller particles ever stop?

What's smaller than an electron?

Brains On!® is a science podcast for curious kids and adults from American Public Media. Each week, a different kid co-host joins Molly Bloom to find answers to fascinating questions about the world sent in by listeners. Like, do dogs know they’re dogs? Or, why do feet stink? Plus, we have mystery sounds for you to guess, songs for you to dance to, and lots of facts -- all checked by experts.

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What's smaller than an electron?

What's smaller than an electron?

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