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US Department of Energy: Fusion Ignition Achieved

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Re: US Department of Energy: Fusion Ignition Achieved

#41
post #9

Every breakthroughs starts from government (people) funded initiatives, congrats to everyone involved, a future without the need to generate selfish profit is at reach!

Every breakthrough starts from government funded initiatives? Wilbur and Orville Wright disagree.

Re: US Department of Energy: Fusion Ignition Achieved

#42
post #24

Earlier quoted context omitted.

Press release states: "meaning it produced more energy from fusion than the laser energy used to drive it." The 2.05 MJ put into the reaction includes the laser power supply then, it would seem, unless they are bad at press releases. But 2.05 MJ is not a lot of power.

2.05 MJ is what made it into the system from the laser. It took a lot more to power the laser.

That's what I was trying to figure out. So is it still a net-negative overall?

Re: US Department of Energy: Fusion Ignition Achieved

#45

I'm still a little unclear on the benefits that fusion offers compared to things like wind and solar. I understand that we need to develop better storage technologies for the energy produced by wind and solar, but that seems so much easier than the challenges currently facing fusion. Wind and solar just seem so far ahead of fusion already - they're pretty cheap and very widely deployed on a global scale. In compariso…

It’s potentially just a much better version of fission.

Fusion won’t cause a runaway reaction — in fact it’s brutally difficult to get it to react at all, hence why this is an achievement.

It also doesn’t use materials that can be used for a bomb, again unlike fission.

As a result it has the potential to be cheaper to implement, cheaper to fuel, with no meltdown risk.

Re: US Department of Energy: Fusion Ignition Achieved

#46
post #21
post #7

Earlier quoted context omitted.

Maybe. Fusion energy might be more expensive than current forms or has undesirable yet to be known side effects. People said the same of nuclear and here we are.

You mean like tearing a hole in the fabric of space and time and opening a hell portal to another dimension?

That only happened ONCE.

Re: US Department of Energy: Fusion Ignition Achieved

#47

Earlier quoted context omitted.

Previous Fusion experiments, even though we could get Fusion reactions to occur, required more energy to start and sustain the reaction than was generated from it. For the first time, more was generated from the reaction than put in.

Note that while this is important progress, it's a bit of specific accounting. The entire system still requires more energy input than output, but this isolated piece can now output a little more than input. > This is indeed a promising and exciting result, but we need to remember that this does not take into account the energy required to run the lasers that confine the reaction and other inefficiencies and losses.…

Since there will necessarily be overhead in any kind of finished design, this "threshold" is an arbitrary one to pass, no more significant that 90% or 125%, or any other round number.

Re: US Department of Energy: Fusion Ignition Achieved

#48

The future just got a whole lot brighter for my children. This is going to save our planet, not funky wind farms.

No need to pit them against each other. This achievement wasn't certain. Multiple paths towards a more sustainable future is better for everyone.
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