Day: 13 June 2015
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Is it possible to 'blow' a whistle or other wind/brass instrument underwater? How?
Wind and brass instruments (which I've just learned are collectively 'aerophones') work because since characteristic of their shape causes the air that is pushed or drawn through them to vibrate at particular frequencies. They work in air whether you're down a mine or at the top of a mountain, so there's clearly some tolerance …