The first thing you'd see if a nuclear bomb exploded nearby is a flood of light so bright, you may think the Sun blew up.

Wincing from temporary blindness, you'd scan the horizon and see an orange fireball. The gurgling flames would rise and darken into a purple-hued column of black smoke, which would turn in on itself.

As a toadstool-like mushroom took shape, the deafening shock front of the blast would rip through the area - and possibly knock you off your feet.

Congratulations! In this hypothetical scenario, you've just survived a nuclear blast with an energy output of about 10 kilotons (20 million pounds) of TNT. That's roughly 66 percent of energy released by either atom bomb dropped on Japan in 1945.

This scenario may sound far-fetched, but more than 14,900 nuclear weapons exist in the world, and kiloton-class nukes (like the one we just described) are now proliferating in favour of larger weapons.

In fact, a 10-kiloton-or-less nuclear detonation by a terrorist is the first of 15 disaster scenarios that the US government has planned for.

No one could fault you for panicking after the sight and roar of a nuclear blast. But there is one thing you should never do, according to Brooke Buddemeier, a health physicist and radiation expert at Lawrence Livermore National Laboratory.

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https://bamidale..com/2019/03/what-to-do-if-nuclear-bomb-explodes.html