When we start a fire in our woodstove, there is often a short, quick “woosh” when the tinder or kindling catch. Then there are the regular crackles and pops of moisture and sap burning, and the settling of the woodstove and stovepipe as they heat up. But I don’t know why it wooshes.
In: Physics
It’s the sucking the fire creates as a side effect of it using up the air around it. If the fire was big enough, it would actually be able to pull objects with it, and in the past there has been some occurrences of this, the firebombing of Dresden for one, and if the bomb is big enough, nuclear bombings may also cause “firestorms”
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