Why don't potato peelers need sharpening? - a podcast by Dr Chris Smith

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

Further episodes of Question of the Week, from the Naked Scientists

Further podcasts by Dr Chris Smith

Website of Dr Chris Smith