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First Light (Oxford University spinout) achieves nuclear fusion

firstlightfusion.com

11–20 of 141 posts

Re: First Light (Oxford University spinout) achieves nuclear fusion

#11
post #5

> First Light is working towards a pilot plant producing ~150 MW of electricity and costing less than $1 billion in the 2030s. Finally, fusion in only ten to twenty years. I've been waiting ten to twenty years for this!

It's been 20 to 40 years for about 60 years, now we're down to 10 to 20 we might get down to 5 to 10 in only 30 more years!

Re: First Light (Oxford University spinout) achieves nuclear fusion

#12

As a nuclear fusion ignorant, where is the small print here? What's the catch, drawback, issue that it will make actually nonviable ?

They made 50 neutrons from this shot! You can make billions per second, steady state, with a tabletop device plugged into a standard outlet.

Edit: Fusion makes ~ 10^15 neutrons for every watt-hour of energy released (for the easiest kind of fusion)

https://www.wolframalpha.com/input/?i=1+Wh+%2F+17.6+MeV

Re: First Light (Oxford University spinout) achieves nuclear fusion

#13

As a nuclear fusion ignorant, where is the small print here? What's the catch, drawback, issue that it will make actually nonviable ?

I can imagine the downsides of accelerating the fuel that hard at the target and missing might be fairly entertaining.

Re: First Light (Oxford University spinout) achieves nuclear fusion

#14
post #5

> First Light is working towards a pilot plant producing ~150 MW of electricity and costing less than $1 billion in the 2030s. Finally, fusion in only ten to twenty years. I've been waiting ten to twenty years for this!

It's my favorite go-to and the series number is so easy to remember:

https://m.xkcd.com/678/

(be sure to click for its very relevant alt-text)

Re: First Light (Oxford University spinout) achieves nuclear fusion

#15

It's remarkable and humorous how it's just a gun. Like this is how the Victorians would have approached fusion. More power to them! We need to test a myriad of approaches. This could well turn out to be the best one.

I’m amazed the British did this first instead of Americans

Hah - this sounds not dissimilar from the first fission bombs that were "gun" type.

Re: First Light (Oxford University spinout) achieves nuclear fusion

#17

It's remarkable and humorous how it's just a gun. Like this is how the Victorians would have approached fusion. More power to them! We need to test a myriad of approaches. This could well turn out to be the best one.

I’m amazed the British did this first instead of Americans

Americans would of course do it with a nuke. Which actually they have already done. https://en.wikipedia.org/wiki/Ivy_Mike

Re: First Light (Oxford University spinout) achieves nuclear fusion

#18
post #5

> First Light is working towards a pilot plant producing ~150 MW of electricity and costing less than $1 billion in the 2030s. Finally, fusion in only ten to twenty years. I've been waiting ten to twenty years for this!

It's been 20 to 40 years for about 60 years, now we're down to 10 to 20 we might get down to 5 to 10 in only 30 more years!

It's a full-on Xeno's paradox. Soon enough we will be 10 to 20 seconds away but will still never reach it.

Re: First Light (Oxford University spinout) achieves nuclear fusion

#19

It's remarkable and humorous how it's just a gun. Like this is how the Victorians would have approached fusion. More power to them! We need to test a myriad of approaches. This could well turn out to be the best one.

"Little Boy" the first nuke deployed in Japan was also just a gun, firing a lump of enriched uranium at another lump of enriched uranium at the end of a tube.

Re: First Light (Oxford University spinout) achieves nuclear fusion

#20

As a nuclear fusion ignorant, where is the small print here? What's the catch, drawback, issue that it will make actually nonviable ?

The small print is that you can achieve fusion in many, many ways. The problem is getting any energy out and doing so at a meaningful scale.

Something like ... the difference between folding a paper airplane and designing and building an airliner.

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