First stop was the Netherlands to speak to Emiel, a fluid dynamics expert, who explains how the fan in an air fryer works like a “mini tornado”. Next, it’s back to 1944 and the invention of an oven ...

Three series in, this was the episode of The Secret Genius of Modern Life (BBC Two) I’d been waiting for. Because let’s face ...

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Explore PBS Parents, a trusted source for information on child development, early learning and expert tips on raising children. Enjoy educational kids activities and fun games for toddlers ...