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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: john larkin Newsgroups: sci.electronics.design Subject: Re: New fusion power system test creates 300,000 degrees C plasma Date: Fri, 29 Nov 2024 18:23:11 -0800 Organization: A noiseless patient Spider Lines: 49 Message-ID: <2gtkkj5lcorift8ldc2n9qusgttmo6t376@4ax.com> References: <1r3svpl.148oh3818kksy4N%liz@poppyrecords.invalid.invalid> <1r3t0yh.1en723hd56invN%liz@poppyrecords.invalid.invalid> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Injection-Date: Sat, 30 Nov 2024 03:23:12 +0100 (CET) Injection-Info: dont-email.me; posting-host="29885b941dd035e97fa26ef25062c9e6"; logging-data="1427648"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18E+BY6EXlx70UeZFAkQBwa" User-Agent: ForteAgent/8.00.32.1272 Cancel-Lock: sha1:L4LyE6kbGtgWwMBGyq+xXLofI2k= Bytes: 3049 On Fri, 29 Nov 2024 23:30:22 +0100, Jeroen Belleman wrote: >On 11/29/24 23:03, Liz Tuddenham wrote: >> Jeroen Belleman wrote: >> >>> On 11/29/24 21:04, Liz Tuddenham wrote: >>>> Jeroen Belleman wrote: >>>> >>>> [...] >>>>> It would be lovely to have 50kWTh or so of PU238 in the basement, >>>>> if it could be made cheaply enough. Power for a lifetime for the >>>>> whole house and then some. >>>> >>>> ...but the lifetime might not be very long if any got out. >>>> >>>> >>> >>> If, if. Such arguments can be used to prove anything. >>> >>> I've got a diesel-powered car in the basement garage. Fully tanked, >>> it contains 60kg of fuel, good for 2.4GJ or so. Imagine the havoc >>> that could cause, if it got loose. For reference, a stick of dynamite >>> is about 1MJ. >> >> I've seen what happened when builders accidentally set fire to a tank of >> diesel far bigger than that. It burned slowly and steadily until it set >> fire to the roof of the house - then the house burned down. Nobody was >> injured or killed, the mess was easily cleaned up and a new house built >> on the site. >> >> It wasn't like the sudden release of energy you would get in a fuel-air >> explosion (quite difficult to initiate with diesel without specialist >> knowledge) and there wasn't a lot of residual toxic contamination. >> >> > >OK. Now back to small 238Pu fuelled units. Why would you expect >anything to go wrong if the Pu was contained in a hermetic canister? > >Jeroen Belleman If it lost cooling, it would melt through anything. Then you'd have plutonium slag and vapor all over your garage. The neighbors might complain. That's interesting: if you could confine some mass of 238, what would its ultimate temperature be?