Ivana Hughes

and Russia have nuclear bombs currently that are on the order of one megaton.

That's about 70 times more powerful than the Hiroshima bomb.

At the height of the Cold War, when we were first testing nuclear weapons and actually first testing hydrogen bombs, which are different from the atomic bombs that were used in Hiroshima and Nagasaki, and I can explain that as well, we were even testing the largest test that the U.S.

had ever conducted, took place in the Marshall Islands.

It's called the Bravo test, Castle Bravo test,

And there was a thousand Hiroshima bomb equivalents.

And yet the Soviets actually tested something even more powerful.

They did so up in the North Sea, a region called Novaya Zemlya.

And they tested some accounts, say 50 megatons.

So that's

More than 3,000 Hiroshima bomb equivalents.

I've even seen accounts to say 58 megatons.

So that would be basically, you know, 4,000 Hiroshima bomb equivalents.

The Bravo test, which took place on March 1 of 1954, that test, that mushroom cloud, so we all sort of have this vision of a nuclear explosion that produces the mushroom cloud, that mushroom cloud was 25 miles or 40 kilometers high.

And at the widest, about 60 miles wide.

60 miles?

Miles wide, the mushroom clouds.

It's quite simply something that's unimaginable.

And that test actually had truly devastating consequences for people living in the Marshall Islands.

About 100 miles from where the test was conducted, a population was living in a place called Rongelap Atoll.