The Lawrence Livermore National Laboratory’s National Ignition Facility achieved the feat using lasers to fuse two atoms
US scientists achieve net energy gain for second time in a fusion reaction::The Lawrence Livermore National Laboratory’s National Ignition Facility achieved the feat using lasers to fuse two atoms
Maybe the easiest method is to create the fusion reaction in space because then you don’t need to worry about containment. Have a big ball of fusion going nonstop and then beam that energy to earth.
Then have collectors which receive that beamed down energy. You could put them everywhere… Maybe close to where you need the energy like directly on top of buildings and houses.
Admittedly, you’d need a layer of ozone (self sustaining so long as you don’t have some kind of chemical that causes ozone to not form, but who’d have that?). And probably some kind of hot liquid metal contraption in the middle of the earth, sustained by, like Uranium decay or tidal friction or something, to generate a magnetic field to protect us.
Some Irish people would probably still die of radiation poisoning on beaches, but that’s a sacrifice the rest of us are willing to make.
You are adding quite a big layer of complexity there… As astronauts will tell you, even screwing a screw is pretty challenging out there. Maintaining an unrestrained fusion reaction looks like extra challenging
It might be net energy gain when considering just the energy needed to sustain the reaction, but I doubt it accounts for the energy needed to power and cool all of the infrastructure that makes that reaction possible. They never mention that part.
In December, Lawrence Livermore first achieved a net energy gain in a fusion experiment using lasers. That experiment briefly achieved what’s known as fusion ignition by generating 3.15 megajoules of energy output after the laser delivered 2.05 megajoules to the target
The laser energy is not the only energy input (or even the largest part) required to run these experiments.
Here is another article that does actually mention the other energy requirements
Energy gain in this context only compares the energy generated to the energy in the lasers, not to the total amount of energy pulled off the grid to power the system, which is much higher. Scientists estimate that commercial fusion will require reactions that generate between 30 and 100 times the energy in the lasers.
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !technology@lemmy.world
This is a most excellent place for technology news and articles.
Maybe the easiest method is to create the fusion reaction in space because then you don’t need to worry about containment. Have a big ball of fusion going nonstop and then beam that energy to earth.
Then have collectors which receive that beamed down energy. You could put them everywhere… Maybe close to where you need the energy like directly on top of buildings and houses.
And blast the whole planet with radiation? Are you crazy?
Won’t someone think of the Irish people on beaches?
Admittedly, you’d need a layer of ozone (self sustaining so long as you don’t have some kind of chemical that causes ozone to not form, but who’d have that?). And probably some kind of hot liquid metal contraption in the middle of the earth, sustained by, like Uranium decay or tidal friction or something, to generate a magnetic field to protect us.
Some Irish people would probably still die of radiation poisoning on beaches, but that’s a sacrifice the rest of us are willing to make.
You are adding quite a big layer of complexity there… As astronauts will tell you, even screwing a screw is pretty challenging out there. Maintaining an unrestrained fusion reaction looks like extra challenging
Edit. Sorry, I missed the joke
It might be net energy gain when considering just the energy needed to sustain the reaction, but I doubt it accounts for the energy needed to power and cool all of the infrastructure that makes that reaction possible. They never mention that part.
The laser energy is not the only energy input (or even the largest part) required to run these experiments.
Here is a good (2 year old) video on this topic: https://www.youtube.com/watch?v=LJ4W1g-6JiY
Last time I heard about it, it was exactly like you mention. I find the articles very misleading.
Here is another article that does actually mention the other energy requirements
deleted by creator
I’d be happy to see fusion power be viable in my lifetime