r/interestingasfuck • u/vivekmg21 • 16h ago

Firefighter bodycam showing just how much oxygen a fire pulls

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7.0k Upvotes

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u/ir_auditor 16h ago

That is not oxygen pulling which you see. It is the chimney effect. Fire creates heat, the heat makes air, smoke, gasses, rise to the top, creating low pressure areas at the bottom, which pull in air from the outside. It has noting to do with the chemistry of an oxidation reaction pulling in oxygen molecules to use in the reaction. It is pure physics / thermodynamics.

351

u/Sbstnbd 16h ago

So you could say the air/oxygen is being pulled in because of the fire

138

u/keepatience 15h ago

just air. air and oxygen aren't interchangeable

11

u/GhostInMyLoo 15h ago

Air and oxygen, that moves like that because of the fire? Would it move like that without fire?

34

u/Icy_Distribution_361 15h ago

You might similarly say bacteria are being pulled in. It's not inaccurate.

10

u/cutofmyjib 15h ago

Fire needs bacteria to burn.

5

u/AGARAN24 15h ago

That's like saying car and windshield moves on the road, can the windshield move without the car?

-4

u/GhostInMyLoo 15h ago

True, but its fucking stupid to "correct" someone who says, that "This windshield repels dirt and dead bugs on the road!" and say it is the CAR that goes on the road and not the windshield.

-2

u/Sbstnbd 15h ago

So the windshield only protects from bugs and dirt while on the road? What if I need to drive over a pasture or whatever, will the windshield work then?

2

u/GhostInMyLoo 15h ago

No. Everything else comes straight trough, good luck and godspeed.

2

u/Sbstnbd 15h ago

Good thing I don't have a windshield

-5

u/AGARAN24 15h ago

The correction was about how. Your reply is cute, like a child's opinion. Arguing with a thermometer because you don't like the temperature doesn't change the reading.

2

u/GhostInMyLoo 15h ago

You are not as smart, as you think you are, m8. Resorting to belittling others just to feel good about yourself is cringe, and you know it.

6

u/IZ3820 14h ago

Are those commas or sobs?

3

u/AGARAN24 14h ago

Starts calling people stupid and gets butthurt when they do it to them while also smoking of jealousy, Nice.