I’ve always been a little embarrassed to ask, but when I have, say, a propane torch, how come the flame doesn’t go back through the line and blow up the can?
In: Engineering
Fire needs oxygen. No oxygen, no fire. Some(or atmospheric levels)oxygen-> fire. Lots of oxygen–> more fire.
For oxygen to travel upstream and against the outwards pressure to reach inside the fuel container, it would be like trying to shove toothpaste back in the tube while someone else was squeezing the tube.
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