<p>Today we discover how atoms vibrating 9,192,631,770 times a second can help us tell time. Welcome to the wonderful world of radio-controlled, atomic clocks!</p>

Today we discover how atoms vibrating 9,192,631,770 times a second can help us tell time. Welcome to the wonderful world of radio-controlled, atomic clocks!

Atoms on your wrist - telling time with atomic clocks

Welcome to Explain that Stuff... in podcast form! Yes, by popular request, an audio version of the easy-to-understand science website you can listen to round the house or on the move.

We cover the basics of how things work, cutting-edge science, cool gadgets, and computers. Unlike other websites, the emphasis is on explaining things simply and clearly so you can actually understand them. Not masses of facts and unnecessary details. Just clear, simple explanation. We teach stuff the way a teacher would, by building out from what you know already.  

Please subscribe and stay tuned...

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Welcome to Explain that Stuff... in podcast form! Yes, by popular request, an audio version of the easy-to-understand science website you can listen to round the house or on the move. We cover the basics of how things work, cutting-edge science, cool gadgets, and computers. Unlike other websites, the emphasis is on explaining things simply and clearly so you can actually understand them. Not masses of facts and unnecessary details. Just clear, simple explanation. We teach stuff the way a teacher would, by building out from what you know already. Please subscribe and stay tuned...

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Atoms on your wrist - telling time with atomic clocks

Atoms on your wrist - telling time with atomic clocks