Asri-unix.1155 net.space utcsrgv!utzoo!decvax!cca!sri-unix!David.Smith@CMU-10A Mon Apr 5 09:06:41 1982 What noxious residue? From: David.Smith at CMU-10A (C410DS30) The ET carries liquid hydrogen and liquid oxygen. What is so noxious about that? The shuttle orbiter itself does use noxious propellants, in the form of hydrazine and nitrogen tetroxide for the OMS and attitude control rockets. These are carried in the orbiter, not the ET. They explain the caution with which ground personnel approach the orbiter after landing -- from the right direction, clothed in protective garb, and using a wind machine. ----------------------------------------------------------------- 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.