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The Astroholic

Snuffing Out candles with Carbon Dioxide

4 Nov 2016, 08:45 UTC
Snuffing Out candles with Carbon Dioxide
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A cool thing to do if you have leftover dry ice is to snuff out candles using just carbon dioxide.
You put dry ice in a jar and let it sublimate. The carbon dioxide will remain in the jug, as the density of CO2 is around 1.98 kg/m3, making it denser than the average density of air, which is 1.225 kg/m3.
So, you can literally pour carbon dioxide out of the jug and snuff out a candle by removing the oxygen from around the flame.

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