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Dennis Whyte

๐Ÿ‘ค Speaker
1833 total appearances

Appearances Over Time

Podcast Appearances

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

The fissioning.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

And so when that happens, because the products that are... It roughly splits in two, but it's not even that.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

It's actually more complicated.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

It splits into this whole array of lighter elements and nuclei.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

And when that happens, there's less rest mass...

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

left than the original one.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

So it's actually the same.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

So it's again, it's rearrangement of the strong nuclear force that's happening.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

But that's the source of the energy.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

And so in the end, it's like, so this is a famous graph that we show everybody.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

It turns out every element that exists in the periodic table, all the things that make up everything, have a... Remember, you asked a good question.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

It was like, so should we think of mass as being the same as stored energy?

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

Yes.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

So you can make a plot that basically shows the relative amount of stored energy that

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

And all of the elements that are stable and make up basically the world, okay, and the universe.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

And it turns out that this one has a maximum amount of stability or storage at iron, right?

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

So it's kind of in the middle of the periodic table because this goes from, you know, it's roughly that.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

And so this, what that means is that if you take something heavier than iron, like uranium, which is more than twice as heavy than that, and you split apart, if somehow just magically you can just split apart its constituents and you get something that's lighter, that will, because it moves to a more stable energy state, it releases kinetic energy.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

That's the energy that we use.

Lex Fridman Podcast
#353 โ€“ Dennis Whyte: Nuclear Fusion and the Future of Energy

Kinetic energy meaning the movement of things.