Giant Vortex box: Blow out a candle from 20 meters

sineralsays...

I think that's carbon dioxide, not smoke. Smoke or steam should rise, but the vortex of stuff in the video actually sinks as it moves towards the candle. So they didn't blow the candle out, they suffocated it.

bamdrewsays...

@sineral, its theatrical fog from fog machines, maybe water vapor/ethylene glycol.

you're breathing out CO2 right now; if your breath looks like that you should turn up your thermostat, or maybe go to the hospital, because your insides are on fire.

sineralsays...

CO2 is also used for theatrical effects; when it sublimates it produces a white fog. CO2 is also used in fire extinguishers. Breath does not look like that because it is far less dense; CO2 freezes at -78°C, so when it sublimates it is very cold which allows a high density and thus more light scattering and thus a white fog appearance.

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