Date: Tue, 23 Nov 1999 13:38:50 -0700

Author: "Michael Thomason"

Subject: RE: DCS questions


-----Original Message-----
[]On Behalf Of Jeff Rudd
Sent: Tuesday, November 23, 1999 4:57 AM
Subject: DCS questions

>1) There are some number/letter combinations missing from the
>DCS, for example: 1B, 1P, 6G.

Sharp eyes! Certain classification codes were reserved in early drafts of
the DCS for possible future insertion of new topics. These gaps are
artifacts of that editing process.

>I am curious if there was some specific reason for this. I have some
>idea of the amount of time and effort that must have gone into
>creating the DCS and the tough decisions and tradeoffs involved.
>Just wondering for my own interest, and so I can answer those
>faculty who ask these annoying questions.

>2) articles in The Physics Teacher:
>would it be possible to coordinate somehow with the editorial staff of
>the Physics Teacher to have DCS numbers included with published
>articles? I could imagine that preprints would be sent to someone in
>PIRA who would decide on the appropriate number which would then >be
included with the article when it was published. This has probably
>been suggested before - would it work?

This is a great suggestion for Jerry Zani, the chair of our DCS Committee to
act on (And somehow I suspect he already is!).

Michael Thomason, Director, Physics Learning Laboratories
University of Colorado, Boulder, Department of Physics

In the matter of physics the first lessons should contain nothing but
what is experimental and interesting to see. A pretty experiment is in
itself often more valuable than twenty formulae extracted from our
- Albert Einstein
A Moszkowski, Conversations with Einstein, page 67, Horizon Press (1970)