Josh Clark

That's exactly right, Chuck.

What a time to live in.

So I mentioned hydrogen and helium as the LTA, lighter-than-air gases used to power anything like this.

And they had a real decision to make early on with the Hindenburg, like what to use.

And the original design was hydrogen.

But then they said there was a crash in 1930 of the British airship R-101.

It was out of the single digits.

Still crashed.

Survived impact, but everybody died in the hydrogen fire, because hydrogen turns out super flammable.

So Hugo Eckner said, you know what?

Let's go to helium.

It's way more stable.

It's a little bit heavier, so we're going to have to design a larger envelope so we can keep that same payload.

But then there was a U.S.

helium embargo, and the United States was the only maker and seller of helium at the time.

And so they said, all right, you know what, let's go back to hydrogen and let's just cross our fingers.

And we did a podcast on that at some point, right?

On helium.

Yeah.

Yeah, so it wouldn't float away.