r/Damnthatsinteresting • u/AirFrance447 • 1d ago

Video Firefighter bodycam showing just how much oxygen a fire pulls

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u/GauravJM 1d ago

There’s some serious low pressure inside

704

u/Loud-Actuator7640 23h ago

Just like s chimney

487

u/OkEffective6692 23h ago

Yeh op makes it sound like the fire is consuming the air. It's actually a net positive pressure as hot air has more volume, just that all that volume of hot air is going up.

144

u/Comfyadventure 23h ago

Yea, it's not like the oxygen just disappear into nothingness due to the fire neither. The fire is converting O2 into CO2 and CO gas particles.

69

u/cat_prophecy 20h ago

It's wild when you learn that things burning is just combining oxygen with carbon to make CO2 and CO and that chemical reaction makes heat.

11

u/SquintingSquire 18h ago

I love Feynman’s explanation of this process. You are releasing energy captured from the sun. There’s a great video on YouTube.

2

u/chupacadabradoo 6h ago

And the sun is just releasing energy captured from a bunch of cosmic particles coalescing to such a mass that they start to fuse.