A demonstration of a water drop travelling uphill on a very hot ratcheted surface on its blanket of steam. This idea comes from a New Scientist article in 2006.
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This is an unusual experiment which is very simple and is detailed here. Basically two aluminium electrodes in a sodium bicarbonate solution will glow and sparkle with sufficient applied voltage. One electrode here is aluminium foil and the other is an aluminium bar.
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A CD zapped in a microwave also gives unusual fractal patterns.
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My son with a blue laser burning the garage roof. Actually an alcohol flamethrower. Chris said flamethrowers were more fun than his English assignment.
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Got a bubble-maker for my birthday (I’m just a big kid really).
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