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To make a mushroom cloud

To make a mushroom cloud

Not all mushroom clouds are nuclear, but that doesn’t mean any old boom will do

I’m not certain Hollywood is aware of this, but to get a mushroom cloud you need a specific sort of boom. Your run-of-the-mill collection of fireworks won’t do it, and your played-for-laughs cooking fiascos on TV definitely won’t either. But don’t make the mistake of assuming that only one type of explosion gets to make mushrooms: Nuclear bombs aren’t the only pyrocumulus producers out there. It’s not as easy as the movies make it look, but with enough energy or heat, the sky’s the limit for what can cause the most distinctive sight a bomb can make.

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