Why does an electric toothbrush affect my vision? - a podcast by Dr Chris Smith

When brushing one's dental equipment with an electric toothbrush one may notice a slight wobbling of the television images. Why does this happen? Plus, we ask why the Americas hadn't developed the same kinds of technologies as the Old World at the time of European contact. 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