Potato peelers are the staple of the kitchen drawer, but why don't they ever seem to need a good honing as ordinary knives do? We have the answer(s). Plus, we ask how the distance to a star is calculated. Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Potato peelers are the staple of the kitchen drawer, but why don't they ever seem to need a good honing as ordinary knives do? We have the answer(s). Plus, we ask how the distance to a star is calculated. Like this podcast? Please help us by supporting the Naked Scientists

Potato peelers are the staple of the kitchen drawer, but why don't they ever seem to need a good honing as ordinary knives do? We have the answer(s). Plus, we ask how the distance to a star is calculated. Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate" rel="noopener noreferrer">supporting the Naked Scientists</a>

Why don't potato peelers need sharpening?

Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time...

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Why don't potato peelers need sharpening?

Why don't potato peelers need sharpening?

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