Dennis Whyte
speaker
1,833 appearances
1 recordings
1 series
first heard Jan 2023
last heard Jan 2023
Dennis Whyte’s voice in public audio — every appearance, attributed to the second.
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Lex Fridman Podcast · #353 – Dennis Whyte: Nuclear Fusion and the Future of Energy · 21 Jan 2023
podcast
In fact, it's not clear that they would actually ignite, in fact, without this effect.
Anyway.
So we get to that.
So this is why there's another requirement.
So you must make a plasma, but you also must get it very hot in order for the reactions to have a significant probability to actually fuse.
And it actually falls effectively almost to zero for lower temperatures as well, too.
It's a really simple equation.
It's the ideal gas law, basically.
In the end, you've got a certain number of these fusion particles in the plasma state.
They're in the plasma state.
There's a certain number of particles.
And if the confinement is perfect, if you put in a certain content of energy, then basically, eventually, they come up in a temperature and they go up to high temperature.
This turns out to be, by the way, extraordinarily small amounts of energy.
And you go, what?
It's like I'm getting something to like 100 million degrees.
That's going to take the biggest flame burner that I've ever seen.
No.
No.
And the reason for this is it goes back to the energy content of this.
So yeah, you have to get it to high average energy, but there's very, very few particles.
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