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It’s the most common flint you’ll find, except it’s not actually flint at all.
Podcast: Play in new window | Download
It’s the most common flint you’ll find, except it’s not actually flint at all.
Podcast: Play in new window | Download
Let’s uncover element 57, and find out why the “rare earths” are neither rare nor earths nor an empire.
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When you really want to suck all the air out of a room, barium will help you out.
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We’ll trace the history of the most important caesium-based technology all the way back to its original roots: a stick.