this post was submitted on 07 Dec 2023
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The scientists used lasers to fuse two light atoms into a single one, releasing 3.15MJ (megajoules) of energy from 2.05MJ of input – roughly enough to boil a kettle.

Why do we even study this? Renewables are the only way. This is a waste of money which is a finite resource.

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[–] caesaravgvstvs@feddit.de 0 points 9 months ago

Money is neither finite nor a resource

[–] Yazer@lemmy.ca 0 points 9 months ago (1 children)

So 1. This is newable. Green, almost waste free, and unlimited.

If we can refine fusion, we will stop global warming and energy insecurity, virtually overnight.

It's not a waste to invest in clean tech R&D. At one point, people said the same thing about solar, and look where we are now

[–] IchNichtenLichten@lemmy.world 0 points 9 months ago (1 children)

Do you really think PV cells and nuclear fusion are in any way comparable? What a strange take.

[–] CTDummy@lemm.ee 0 points 9 months ago (1 children)

In the way the other poster compared them? Yes, in so far as people who complain “the new, developing technology isn’t immediately as optimised and refined as I want it to be” for both.

[–] IchNichtenLichten@lemmy.world 0 points 9 months ago (1 children)

Do you have a basic understanding of the challenges of getting electricity from a fusion reaction vs the challenges of manufacturing PV panels?

[–] lntl@lemmy.ml 0 points 9 months ago* (last edited 9 months ago) (1 children)

i think a central barrier at the moment is fusion doesn't readily start a chain reaction like fission can. scientists are likely exploring the use of the yield of the fusion reaction to reload the reactor (kind of like an automatic firearm) and these techniques are far from mature in this setting.

PV is a simpler mechanism in every way and we've been studying it for more than 100 years. They're very different both technologically and maturity-wise

[–] derGottesknecht@feddit.de 0 points 9 months ago

The sun is a fusion reactor which is sustaining a reaction for millions of years already. Iter is a concept which tries to emulate this