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Watch the EarthX premiere of Ignited: How Close is Fusion Energy? on Monday, April 27, at 9|8c.

Lasers ignited a successful nuclear fusion reaction for the first time. But there are quite some obstacles to overcome to move nuclear fusion technology into something we can really use. What forecast is realistic?

The nuclear fusion breakthrough has raised high hopes for clean power. This documentary shows the context behind the breakthrough. It explains nuclear fusion, one of the most complicated things you can imagine, in a way that a broad audience will be able to understand what it really means for us. The audience will be impressed by the huge and complex international fusion experiments. Watching and maybe smiling about the artistic graphic animations, they will grasp what's going on in a nuclear fusion reaction, why it is so hard to create it on earth and how the different nuclear fusion approaches try to make it happen.


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Transcript
00:02The reason why stars shine.
00:05Just like our Sun, it consists of a plasma, a gas that is millions of degrees hot.
00:11In the plasma, the atoms are broken down into their constituent parts.
00:17Atomic nuclei, which usually repel each other, begin to fuse.
00:22Energy is released. This must be achieved.
00:25But how?
00:26You need high temperature to get the particles to fuse together, so that's one condition.
00:32You also need high density, so that's how many particles you have in a given volume.
00:37So high temperature plus high density means you have lots of particles fusing together,
00:41which means you're releasing lots of fusion power.
00:44However, the third parameter is the energy confinement time,
00:47and that is a measure of how efficiently the plasma holds onto energy.
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