eli5 why do fuses for explosives stay lit underwater?

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I’ve seen videos of people throwing firecrackers and dynamite and things like that into water and they still explode, but how do the fuses stay lit?

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Anonymous 0 Comments

Water doesn’t just magically put out fire.

Fire needs oxygen, and smothering it in water deprives it if that.

Things need to be hot to catch fire, and water heats up slowly so it’s hard to make something wet hot enough to burn.

The fuse is made of a material that contains it’s own oxygen and burns hot enough that ambient water can’t cool it enough to put it out.

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