Article View: sci.electronics
Article #8286Re: Lasers
From: DoomsDay
Date: Sat, 10 Nov 1990 15:29
Date: Sat, 10 Nov 1990 15:29
7 lines
747 bytes
747 bytes
One interesting thing I've done with a fairly powerful ruby laser is to
put a lens (magnifying glass) of focal length about 3cm in the beam, and
fire a pulse through it. The beam converges on one spot in the air and the
concentrated energy is so high that it ionises the air molecules - resulting
in a fireball/ball lightning at the focal point of the mirror. Very dramatic.
Technical Details
Message-ID:
<9205@latcs1.oz.au>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!samsung!munnari.oz.au!mel.dit.csiro.au!latcs1!bartonReferences:
<1571@beguine.UUCP>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!samsung!munnari.oz.au!mel.dit.csiro.au!latcs1!barton From: barton@latcs1.oz.au (DoomsDay) Newsgroups: sci.electronics Subject: Re: Lasers Message-ID: <9205@latcs1.oz.au> Date: 10 Nov 90 15:29:56 GMT References: <1571@beguine.UUCP> Organization: Comp Sci, La Trobe Uni, Australia Lines: 7