News for hackers. Stuff that matters.
Re:Startup company says it is one step closer to creating nu... by Deadstartups on Wednesday September 27, 2017 @04:33PM (#15352025)
My dad was a navy nuke and said that the cost v safety v portability of fission was far superior to that of fusion. That was back in the 90s, so I wonder if it's still relevant, but a quick search [1] seemed to confirm the general idea.

[1] diffen.com/difference/Nuclear_Fission_vs_Nuclear_Fusion

Re:Startup company says it is one step closer to creating nu... by eightysixfour on Wednesday September 27, 2017 @04:39PM (#15352090)
Considering we don't have any way of currently producing an energy positive fusion reactor that can sustain a reaction, he's not wrong... but it is comparing a proven technology to one that, despite the hype, is still in its infancy. Fusion has a lot of benefits should we ever engineer a reactor successfully.
Re:Startup company says it is one step closer to creating nu... by euyyn on Wednesday September 27, 2017 @05:17PM (#15352435)
Yeah I'd be baffled if someone compared the cost and portability of classical vs quantum computers.
Re:Startup company says it is one step closer to creating nu... by olau on Wednesday September 27, 2017 @05:56PM (#15352698)
I think you should listen to him.

Fusion is still vapourware. For it to ever be viable outside a few niches, it will have to beat fission in price, because it will probably share many characteristics with fission plants (high capital costs, low cost of fuel, radioactive waste, huge plants).

Fusion somehow ended up being branded as the future of energy. But the prospects aren't looking good so far. Fission plants are probably already too expensive to have much of a future.

Re:Startup company says it is one step closer to creating nu... by rpedela on Wednesday September 27, 2017 @06:54PM (#15353083)
The project featured in the article, if successful, will produce no radioactive waste, fits inside a garage, and will likely be cheap overall. Unlike the well-funded laser and tokamak designs which get most media coverage and still don't work well and are unbelievably expensive.
Re:Startup company says it is one step closer to creating nu... by sfifs on Thursday September 28, 2017 @12:09AM (#15354501)
In discussions of new nuclear technology, it's always a good idea to keep in mind the famous Paper Reactors Real Reactors document written by the architect of the worlds most successful nuclear power program.

http://ecolo.org/documents/documents_in_english/Rickover.pdf

Re:Startup company says it is one step closer to creating nu... by delecti on Wednesday September 27, 2017 @07:03PM (#15353154)
Fusion has a huge political benefit in not being the same thing as fission. Fission isn't perfect, but it's way better than you'd think if you only looked at what we invest in. If it can be spun as a separate thing from Chernobyl/Three Mile Island/Fukushima then it might fare closer to what it should from a purely objective standpoint.
Re:Startup company says it is one step closer to creating nu... by Fnoord on Wednesday September 27, 2017 @08:02PM (#15353443)
I learned during an energy project at elementary school (begin '90) a hypothetical nuclear fusion reactor would be a prime target for military action more so than fission. Tho I forgot the exact details on why, I suppose the reactor is easier damaged, whereas a fission reactor is much more difficult to cause a fallout with. Can anyone confirm that's true or false?
Re:Startup company says it is one step closer to creating nu... by cygx on Thursday September 28, 2017 @01:17AM (#15354827)
It's the other way around:

If a fission reactor is insuffciently cooled (due do the cooling system getting destroyed by attack or natural causes, cf the Fukushima Daiichi nuclear disaster), the reaction will continue, the core can melt and breach containment.

If a (plasma-based) fusion reactor gets damaged, the plasma will dissipate and the reaction will stop.

Re:Startup company says it is one step closer to creating nu... by kobeya on Wednesday September 27, 2017 @05:28PM (#15352505)
There isn't a single fusion power plant that puts out more energy than it pulls in, other than the Sun. It's kinda hard to compare cost, safety, and portability of something that doesn't exist to something that does.
Re:Startup company says it is one step closer to creating nu... by kemiller on Wednesday September 27, 2017 @06:11PM (#15352799)
Portability is a concern that is particular to the Navy, and I don't think anyone has suggested they switch...