Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.BERKELEY.EDU Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!brahms!weemba From: weemba@brahms.BERKELEY.EDU (Matthew P. Wiener) Newsgroups: net.politics,net.sci Subject: Re: Small Nuclear Bombs Message-ID: <13811@ucbvax.BERKELEY.EDU> Date: Thu, 15-May-86 17:39:42 EDT Article-I.D.: ucbvax.13811 Posted: Thu May 15 17:39:42 1986 Date-Received: Sat, 17-May-86 04:46:12 EDT References: <358@drutx.UUCP> <1063@whuxl.UUCP> <2384@jhunix.UUCP> Sender: usenet@ucbvax.BERKELEY.EDU Reply-To: weemba@brahms.UUCP (Matthew P. Wiener) Organization: University of California, Berkeley Lines: 17 Xref: watmath net.politics:15983 net.sci:864 In article <684@riccb.UUCP> jmc@riccb.UUCP (Jeff McQuinn ) writes: >> I was talking to an ex-LLL physicist once who told me that there >> is an isotope of Californium with a *very small* critical mass (a few >> grams, I think it was). This opened the theoretical possibility of a >> hand grenade sized nuclear weapon. > >Californium, isn't that one of those wonderful man-made elements whose shelf >life can be measured in microseconds? No wonder it's "theoretically" possible. The theoretical possibility is not for a californium bomb--we're mellow remember--but for an xx-ium bomb where xx-ium has *very small* critical mass and long enough half life to assemble the bomb. There is the old conjecture that elements around 124 or so in atomic number are part of new stable range. Maybe that may only mean a ten day half-life at best, but the possibility is definitely there. ucbvax!brahms!weemba Matthew P Wiener/UCB Math Dept/Berkeley CA 94720