Aucbvax.4617 fa.space utzoo!decvax!ucbvax!space Fri Oct 23 04:31:32 1981 SPACE Digest V2 #18 >From OTA@S1-A Fri Oct 23 03:56:46 1981 SPACE Digest Volume 2 : Issue 18 Today's Topics: Administrivia carbonless plastics Deviousness for deviousness' sake ---------------------------------------------------------------------- Date: 22 Oct 1981 1633-PDT From: Ted Anderson Subject: Administrivia To: space at MIT-MC For reasons far too twisted to describe here, some of you saw the first message of this digest in yesterdays digest. Todays digest has the same issue number as yesterday's abortive one did. That is because only a few people got yesterdays digest and its contents are been reproduced here for completeness. Basically yesterday shouldn't have happened. Ted Anderson ------------------------------ From: CARLF@MIT-AI Date: 10/21/81 11:49:46 Subject: carbonless plastics CARLF@MIT-AI 10/21/81 11:49:46 Re: carbonless plastics To: SPACE at MIT-MC The polymerized sand you ask about is glass. The silicones consist of a backbone of alternating Si and O, with two hydrocarbon side groups coming off of each Si. CH3 is a typical side group. They can indeed stand high temperatures, up to several hundred degrees centigrade. Silicones can indeed be made with a very low fraction of volatile component; grease used in vacuum systems is silicone. Silicone is also reasonably invulnerable to ultraviolet. The problem with it is that it isn't very strong stuff. I've never heard of anything more solid than rubber being made from silicone. What prompts you to this query about carbonless plastics? If you really want to know, I can tell you quite a bit. -- Carl ------------------------------ Date: 22 Oct 1981 1539-EDT From: J. Noel Chiappa Subject: Deviousness for deviousness' sake To: space at MIT-MC cc: JNC at MIT-XX Perhaps my mind has fallen into the affliction noted above, but I had an interesting thought. In agencies that the current administration doesn't like (e.g. EPA and the Justice Dept anti-trust people) they have appointed people who are whole-heartedly dismantling the agencies' programs. Perhaps the fact that they have appointed someone as forceful as Beggs indicates closet sympathies for NASA? Maybe we can look to increased support in the future. Noel ------------------------------ End of SPACE Digest ******************* ----------------------------------------------------------------- gopher://quux.org/ conversion by John Goerzen of http://communication.ucsd.edu/A-News/ This Usenet Oldnews Archive article may be copied and distributed freely, provided: 1. There is no money collected for the text(s) of the articles. 2. The following notice remains appended to each copy: The Usenet Oldnews Archive: Compilation Copyright (C) 1981, 1996 Bruce Jones, Henry Spencer, David Wiseman.