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- From: elliot.weinberg@nitelog.com (Elliot Weinberg)
- Newsgroups: sci.physics
- Subject: Re: a question on powerfu
- Message-ID: <56.289.uupcb@nitelog.com>
- Date: 15 Nov 92 08:14:00 GMT
- Reply-To: elliot.weinberg@nitelog.com (Elliot Weinberg)
- Organization: Nitelog BBS - Monterey, CA - 408-655-1096
- Lines: 23
-
- SJQ> >
- SJQ> > Are there any lasers available which will actually cut things?
- SJQ> > The ones I see for sale in catalogs (like Edmund Scientific) seem only
- SJQ> > to be for demonstration purposes. Is it possible to obtain a laser
- SJQ> > that will cut metal, or are they only industrial ones that weigh tons
- SJQ> > and cost millions? If anyone has any info on this (company names,
- SJQ> > etc.) please reply to mlevin@husc8.harvard.edu.
-
- Since you already have received a relevant response, I hope you will
- forgive some reminiscences from earlier days. I wonder how many laser
- users know that in the early days(shortly after Maiman's little ruby lit
- up the world in 1960) there was much confusion as to how to compare
- various lasers with different pulse lengths, powers, energies,
- coherence (goes to focusing ability), etc. For quite some time the
- standard unit was a Gillette! I. e. the "strength" of a laser was
- measured by the number of stacked razor blades that the laser could
- punch a hole through in one shot. Those were the days when "MASER"
- meant "military applications seem extremely remote" or maybe "more
- applied scientists eat regularly". I still have some neat slides showing
- sparks flying from one such shot. I guess I don't remember whether a
- "hole in one" was par for the course? Regards.
-
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-