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- Newsgroups: sci.physics.fusion
- Path: sparky!uunet!usc!news.service.uci.edu!ttinews!soldev!jackson
- From: jackson@soldev.tti.com (Dick Jackson)
- Subject: Neutron Measuring 50 Years Ago
- Message-ID: <1993Jan5.205322.1986@ttinews.tti.com>
- Sender: usenet@ttinews.tti.com (Usenet Admin)
- Nntp-Posting-Host: soldev.tti.com
- Organization: Transaction Technology, Inc.
- Date: Tue, 5 Jan 1993 20:53:22 GMT
- Lines: 22
-
-
- I am typing in this extract from the New Scientist magazine (without
- their permission, although the managers of such an excellent magazine
- would surely approve) because it reminded me of what I am not reading
- in this group:
-
- "... The experiment resumed at 2:30 pm. Fermi again instructed the pile to
- be operated with a single conrol rod, as he calculated what the neutron
- count would be when the rod was withdrawn by another foot....
-
- "The neutron counter was eventually overwhelmed, and everyone's attention
- turned to the chart recorder, its pen scratching out a continuous ascent.
- Fermi spent several minutes carefully checking that the rise was
- exponential, that is, rising by the same factor in each successive time
- interval -- evidence that the chain had been established. He put away his
- slide rule and broke into a broad smile, announcing: 'the reaction is
- self-sustaining'. The reactor was working at half a watt."
- ^^^^^^^^^^^
- Obfusion: the New Scientist recently lam-(ever so slightly)-pooned Frank
- Close in a jokey almanac for 1993. Something about his hat.
-
- Dick Jackson
-