Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from beak.andrew.cmu.edu via trymail for +dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl@andrew.cmu.edu (->+dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl) (->ota+space.digests) ID ; Sun, 10 Jun 1990 01:53:34 -0400 (EDT) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Sun, 10 Jun 1990 01:53:05 -0400 (EDT) Subject: SPACE Digest V11 #514 SPACE Digest Volume 11 : Issue 514 Today's Topics: Reminders for Old Farts Ersatz Free Fall Re: Space Digest V11 #504 Re: SPACE Digest V11 #510 Administrivia: Submissions to the SPACE Digest/sci.space should be mailed to space+@andrew.cmu.edu. Other mail, esp. [un]subscription notices, should be sent to space-request+@andrew.cmu.edu, or, if urgent, to tm2b+@andrew.cmu.edu ---------------------------------------------------------------------- Date: Sat, 9 Jun 90 04:00:29 -0700 From: Eugene N. Miya Subject: Reminders for Old Farts Hints for old users (subtle reminders) You'll know these. Minimize cross references, [Do you REALLY NEED to?] Edit "Subject:" lines especially if you are taking a tangent. Send mail instead, avoid posting follow ups. [1 mail message worth 100 posts.] Internet mail readers: send requests to add/drop to SPACE-REQUEST not SPACE. Read all available articles before posting a follow-up. [Check all references.] Cut down attributed articles. Summarize! Put a return address in the body (signature) of your message (mail or article), state institution, etc. don't assume mail works. Use absolute dates. Post in a timely way. Don't post what everyone will get on TV anyway. Some editors and window systems do character count line wrapping: please keep lines under 80 characters for those using ASCII terms (use ). ------------------------------ Date: 7 Jun 90 17:02:32 GMT From: van-bc!ubc-cs!fornax!zeke@ucbvax.Berkeley.EDU (Zeke Hoskin) Subject: Ersatz Free Fall (Space begins at ground level, it's just that damned air keeps getting in the way....) Just in case I don't make it into orbit someday, I'd like to try a substitute experience I heard of. Basically, it's a vertical wind tunnel with the airspeed somewhere between the extremes of human terminal velocity. You pay your money and get to jump in and ride the updraft for a few minutes. Anybody tried one of these? Recommend or discourage? Where can I find one (near Vancouver, Canada)? Followups re anatomical docking maneuvers to alt.sex :-) ------------------------------ Date: Sat, 09 Jun 90 10:49:32 EST From: BROWN%CMR001.BITNET@vma.cc.cmu.edu To: jhanson%ucsd.EDU@vma.cc.cmu.edu, space+%andrew.cmu.EDU@vma.cc.cmu.edu Subject: Re: Space Digest V11 #504 X-Orig-To: 'space+'@andrew.cmu.edu,jhanson@ucsd.edu >Date:5 Jun 90 17:35:00 GMT >From:usc!zaphod.mps.ohio-state.edu!uwm.edu!bionet!arisia!cdp!jhanson@ucsd.edu >Subject:HAWAII/ROCKET very long - 61k Here goes folks, I'll try to make this as concise as possible. >ALUMINUM >Though further studies need to be done, airborne >aluminum from rocket exhaust may represent a significant health >risk. Why don't you wait for the studies to be done. Aluminum may or may not be a health risk. I am confident that the studies will examine this in great detail. >In order to provide an adequate >Environmental Impact Statement, the State needs to examine the >impacts the added burden of rocket launch pollution will have on >drinking water supplies. Then write to someone (like a Congressman) and politely remind them that this is a concern of yours. I am sure he/she will assure you that this will be done, and if you are lucky, he might offer to mail you a copy, once it is completed. >ROCKET ACID AND PLANTS >Also, it is not clear how >SRM exhaust contamination of grasses in the Ka'u area will affect >our milk supply. These important studies need to be undertaken by >the State in order to provide an adequate Environmental Impact >Statement. See above. [by the way, I like the term "ROCKET ACID" ;-) ] >ROCKET ACID AND ALUMINUM EFFECTS ON ANIMALS >In the domestic chicken studies: "The data reported >suggests that the lethal factors of the exhaust cloud are >cumulative since hatchability is reduced both with higher >concentration and with repeated exposure." Send a letter to whoever owns the proposed site, telling them of this discovery and suggest that they not plan to raise chickens on the launchpad. >We were not able to find studies concerning the chronic effects of >SRM exhaust. The State needs to conduct these important studies >on the fauna specific to the Ka'u area in order to provide a >complete Environmental Impact Statement. See Aluminum. >RAINING ACID Well, my friends, if this is a concern of yours, then realize that this is already a BIG problem in North America. Why not concentrate your efforts on this and help both Canada and the U.S. put and end to it. >MAJOR EXHAUST PRODUCTS >ALUMINUM OXIDE >CARBON MONOXIDE >CHLORINE >HYDROGEN CHLORIDE >NITRIC OXIDE You describe these products/byproducts as deathly, yet we find a lot of them in reasonable quantaties in the household (or nearby). Try putting this stuff into proportion. >ROCKET RELIABILITY AND FREE-FLYING SRMs >A Federal Government publication entitled "REDUCING LAUNCH >OPERATING COSTS", Sept. 1988, states that the minimum reliability >for the Delta rocket is 90%, for the Atlas rocket, it is 81%. >This means if the operators of the facility have bad luck, one out >every ten Delta rockets and one out of every five Atlas rockets >will explode. This number of failures is considered acceptable to >those who launch rockets. Just curious, but does a failure mean that the whole friggin' rocket blows up? I dunno. {I am going to leave the rest of this silliness to someone else, except for... >It is fair to assume that once we begin launching military >payloads, we will be targeted by Soviet nuclear Intercontinental >Ballistic Missiles and even more anger will result. It is *not* fair to assume that you are already not targeted by an ICBM (Soviet, or otherwise). I would guess 2 or 3 already, maybe more. Of course you could ask every other country in the world not to point ICBMs at you, just so your argument here could hold [a tiny bit of] water ;-) } Have a great day, CP6-Mail: Michael Brown @CMR NET-Mail: Michael Brown Snail-Mail: Service Informatique CMR, St-Jean, Que. J0J 1R0 ------------------------------ Date: Sat, 09 Jun 90 20:34:06 PLT From: Dave Whelchel Subject: Re: SPACE Digest V11 #510 Subscribe ------------------------------ End of SPACE Digest V11 #514 *******************