Whoosh Bottle Experiment

Tags:: Alcohol Rocket Burning Fire Explosions Chemistry Reaction Demonstrations Demo Physics Science

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kentchemist...
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Updated: 10-May-09
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Added: 04-Apr-07

So little alcohol, so much energy. 5mL of methanol or ethanol is ignited in a 5 gallon water bottle. The alcohol burns at such a high rate itcreates a rocket engine effect. If the mixture is just right, it can knock ceiling tiles off. It looks really amazing atnight. After the burn, the bottle is capped and Charles Law is 8demonstrated. As the temperature decreases the volume decreases. The atmosphere crushes the cooling air in the bottle.Kent

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Whoosh Bottle Experiment

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It's a Reynst Combustor ...
... you find other videos of them on various video sites (usually referring to them as "Jam Jar Pulsejets" or similar) and made out of Jam Jars. Using a vessel this size means the frequency is much lower but the principle is the same.
By Toak Reon 1175859871 Reply Spam [+1] Moderate Up Moderate Down Remove ~~1073455~~
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I used to do this
by turning up the flame setting on a lighter then fill a soda can or bottle with butane. Makes a cool whooshing sound and is great for a hand warmer.
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Cool xD
Lol dunno, it looked cool =P
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