Why doesn’t the flame from a propane torch travel back to the can and blow it up?

Question

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

Answer 1

have you ever drank milk through a straw? then you must have blown bubbles in the milk too. but why couldnt you drink any milk when you were blowing bubbles? its kind of the same way.