Round photographic plates.
Caption;-
A photograph of the tracks of electrons,
ejected by the gamma rays from radium,
after these had been filtered, through 2.5 cm. of steel.
Some of the electrons have energies of 1 MeV.
The photograph was taken, with a magnetic field of 12,000 oersteds.
From a book by
J.D.Stranathan Ph.D.,
Professor of Physics and Chairman of
Department, University of Kansas.
The "Particles" of Modern Physics.
(C) Copyright The Blakston Co. 1942
Big Bertha Thing effort
If you see someone slogging away, but doing it all wrong.
Please remember, a great effort, with no results,
is worth more than a great result with no effort.
The first is purchased at great cost and the latter,
in terms of cost, is worthless.
(C) Copyright Tony Lance 1997.
To comply with my copyright,
please distribute complete and free of charge.
Tony Lance
tony...@bigberthathing.com
---------- Forwarded message ----------
From: Tony Lance <jude...@bigberthathing.co.uk>
Date: Jan 25 2007, 2:17 pm
Subject: Big Bertha Thing tactics
To: sci.chem
+++++++++++++++++++++++++++++++++++++
24 February 1998 18:22:42
OUSA Astronomy Item
From: Frank Hollis
Subject: Re(2): Big Bertha Thing positron
To: OUSA Astronomy Caroline Walcot,oufcnt2.open.ac.uk writes:
I don't see what pics of a positron particle (??) have to do with a
conference on
Astronomy, which is basically stargazing and astrophysics and mainly
optics.
Surely all this Big Bertha stuff should be diverted to a physics
conference such as S271?
cheers
Caroline
Or even better, the conference that was specifically set up for
exactly this material,
moderated by Spammer in Chief - Tony Lance.
Frank