Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from corsica.andrew.cmu.edu via trymail for +dist+/afs/andrew.cmu.edu/usr1/ota/space/space.dl@andrew.cmu.edu (->+dist+/afs/andrew.cmu.edu/usr1/ota/space/space.dl) (->ota+space.digests) ID ; Tue, 25 Jul 89 03:18:03 -0400 (EDT) Message-ID: <4Yn1EXO00UkVE10U4D@andrew.cmu.edu> Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Tue, 25 Jul 89 03:17:55 -0400 (EDT) Subject: SPACE Digest V9 #553 SPACE Digest Volume 9 : Issue 553 Today's Topics: Re: space news from May 15 AW&ST (replacing computers) E-Prime Aerospace Re: Apollo 12 (And Surveyor 3) Re: Re-play of Apollo 11 TV Coverage and 20th Anniv. at NASM Spinoffs are irrelevant (was Apollo-era technology spinoffs continue to enhance human life (Forwarded)) Israel conf. on Aviation and Astronautics Re: A&E Network rebroadcast of APOLLO 11 coverage; PBS special. Re: Apollo 12 (And Surveyor 3) Re: Apollo-11 lunar experiment still useful after 20 years (Forwarded) Re: Re^2: Fuel for lunar trip Re: Space Transportation Act Lunar Landing coverage on A&E Re: Two Questions Re: Apollo 12 (And Surveyor 3) Re: Apollo 12 (And Surveyor 3) ---------------------------------------------------------------------- Date: 10 Jul 89 23:36:10 GMT From: haven!grebyn!rich@purdue.edu (Rich Kolker) Subject: Re: space news from May 15 AW&ST (replacing computers) In article <3827@phri.UUCP> roy@phri.UUCP (Roy Smith) writes: >In <1989Jul2.054432.5054@utzoo.uucp> henry@utzoo.uucp (Henry Spencer) writes: >> the Atlantis crew replaced one of the orbiter's five general-purpose >> computers after it failed [...] it took about four hours because the >> computers are behind some of the middeck lockers and are not easy to get at. > > I don't understand. I thought that the various computers were all >constantly checking each other and if one failed, it would be taken off line >automatically and the others would continue to operate without it. Why the It's been a while since I've been on the net, but let me take a crack at this one. The GPC's are not taken off line automatically, In the case of a problems, there is a 5x5 grid above the commander's chair that shows GPC status. One axis is which computer is voting and the other is which computer the voting computer says is going bad (has gone bad). The GPC control switches are directly above the CDR's seat and are taken on/off line manually. Generally, only three are kept powered up during orbital flight although flight rules say all five are to be up, running and available for launch and entry. This from my feeble memory, although if something is really wrong, catch me and I'll go back to the manuals for the final say (I've got the 2102s for the GPC's around here somewhere). ++rich +-----------------------------------------------------------------------+ | Rich Kolker | | uunet!telenet!richk (not the reply to above) +-----------------------------------------------------------------------+ ------------------------------ Date: 12 Jul 89 04:40:30 GMT From: kr0u+@andrew.cmu.edu (Kevin William Ryan) Subject: E-Prime Aerospace What is the present status of this company? Are they launching, preparing to launch, belly-up, in stasis, what? Kevin Ryan kr0u@andrew.cmu.edu ------------------------------ Date: 14 Jul 89 05:02:19 GMT From: jarvis.csri.toronto.edu!utgpu!utzoo!henry@rutgers.edu (Henry Spencer) Subject: Re: Apollo 12 (And Surveyor 3) In article <2612@kepler.sw.mcc.com> richter@kepler.sw.mcc.com (Charlie Richter) writes: >Al Bean removed three pieces of Surveyor III: some wire cable, >some aluminum tubing, and the soil scoop. (These three pieces >were brought back to Earth for study.) Charles Conrad Jr., writing in "Apollo Expeditions to the Moon" (NASA SP-350), page 231: "We cut samples of the aluminum tubing... and some electrical cables... We managed to break off a piece of glass, and we unbolted the Surveyor TV camera. Then Al [Bean] suggested that we cut off and take back the sampling scoop, and so we added that to the collection. Then we headed back..." I think this can be considered authoritative. -- $10 million equals 18 PM | Henry Spencer at U of Toronto Zoology (Pentagon-Minutes). -Tom Neff | uunet!attcan!utzoo!henry henry@zoo.toronto.edu ------------------------------ Date: 6 Jul 89 16:08:11 GMT From: usc!orion.cf.uci.edu!uci-ics!zardoz!tgate!ka3ovk!teemc!mibte!ccd700!jim@apple.com (J. Sitek) Subject: Re: Re-play of Apollo 11 TV Coverage and 20th Anniv. at NASM In article <8907021844.AA00156@boardwalk.mitre.org>, howell@COMMUNITY-CHEST.MITRE.ORG writes: > A while back I believe someone posted some information about a cable > channel (?Discovery? A&E?) planning to re-broadcast coverage of the > Apollo 11 flight during the 20th anniversary; I had the impression they > were going to cover a lot of the mission running it at the same time and > date as the original. Was this wishful thinking on my part? If someone > would let me know if this is indeed scheduled, I'd appreciate it. Thanks. Please post this information as I think it would be of general interest. Thanks, Jim Sitek ------------------------------ Date: 17 Jul 89 08:43:06 GMT From: agate!web%garnet.berkeley.edu@ucbvax.Berkeley.EDU (William Baxter) Subject: Spinoffs are irrelevant (was Apollo-era technology spinoffs continue to enhance human life (Forwarded)) In article <28591@ames.arc.nasa.gov>, yee@trident (Peter E. Yee) forwards: >Jim Ball >Headquarters, Washington, D.C. July 13, 1989 > > >RELEASE: 89-117 > >APOLLO-ERA TECHNOLOGY SPINOFFS CONTINUE TO ENHANCE HUMAN LIFE > >[Nonsense about how NASA is primarily responsible for the development >of cordless tools, radial tires and sliced bread] > Over 133 thousand people had arthroscopic surgery on their knee in the US in 1987. Ten years ago this surgery involved a hospital stay and small chance of a full recovery. Now it is an outpatient procedure, with most patients walking the next day. Much of the advance in this surgery is due to the frequency of knee injury in the NFL. Does this mean that Congress should appropriate billions of dollars to support the NFL in order to benefit those in need of this surgery, or that the spinoff argument is absurd? William Baxter ARPA: web@{garnet,brahms,math}.Berkeley.EDU UUCP: {sun,dual,decwrl,decvax,hplabs,...}!ucbvax!garnet!web CALL YOUR CONGRESSMAN NOW AND SCREAM AT HIM UNTIL HE AGREES TO APPROPRIATE BILLIONS OF DOLLARS TO SUPPORT THE NFL SO THAT PEOPLE CAN HAVE SAFE ARTHROSCOPIC SURGERY. ------------------------------ Date: Mon, 17 Jul 89 19:51:48 IST From: AERCONF%TECHNION.BITNET@VMA.CC.CMU.EDU Subject: Israel conf. on Aviation and Astronautics ANNOUNCEMENT It is my pleasure to inform you that the 31st Annual Israel Conference on Aviation and Astronautics will take place February 21-22, 1990. The meetings on the first day will be convened at the Tel Aviv Hilton, while the second day will be at the Technion, Haifa. In the past, the Conference has elicited great interest among its participants which number between 600-900 scientists, engineers, and members of the academic community. Participants from the United States and Europe increase from year to year. The Conference Prodeedings are published in English and include talks given by both Invited Speakers and contributing participants. It is available following the conference and reaches a wide audience throughout the world. Papers may be submitted on the following topics: - Aerodynamics and Aeronautical Testing - Materials, Aeronautical Structures and Structural Testing - Structural Dynamics and Aeroelasticity - Aeronautical Design, CAD/CAM, Manufacturing and Maintenance - Propulsion and Combustion - Flight Control, Guidance and Navigation, Avionics - Flight Mechanics and Ballistics - Flight Operation and Systems - Space Systems and Astrodynamics Papers on recent advances in basic research and technology applications in the above mentioned categories, as well as other aerospace related fields, are welcomed. To receive a "Call for Papers" or any other information you may contact us on the bitnet at AERCONF@TECHNION or send a FAX to Mr. Gideon Waxsman at 00-972-4-231848. Acknowledge-To: ------------------------------ Date: 13 Jul 89 16:10:39 GMT From: att!mtuxo!tee@ucbvax.Berkeley.EDU (54317-T.EBERSOLE) Subject: Re: A&E Network rebroadcast of APOLLO 11 coverage; PBS special. In article <8907111417.AA18948@decwrl.dec.com>, klaes@wrksys.dec.com (CUP/ASG, MLO5-2/G1 6A, 223-3283) writes: > > The Arts and Entertainment (A&E) Cable Network is rebroadcasting > the original NBC coverage of the APOLLO 11 mission to the Moon in > 1969. The dates and times are: > > "Liftoff" - July 16, 9:20 AM - 11 AM > "Moonwalk" - July 20, 10:30 PM - 2 AM > "Splashdown" - July 24, 1:30 PM - 3 PM A&E is also broadcasting a series called "The Eagle and the Bear." Last week's was a view of the Soviet and US Space Programs in the 50's and early 60's showing what was happening concurrently in the two countries. I have no idea if this series is strictly space related or if they plan on continuing the comparison to the present. A&E seems to be letting it float from week to week. I saw it at midnight last Friday. My TV schedule indicates the next show will be broadcast this Saturday at 7:30pm (all Eastern times). -- Tim Ebersole ...!att!mtuxo!tee or {allegra,ulysses,mtune,...}!mtuxo!tee ------------------------------ Date: 13 Jul 89 23:05:20 GMT From: eugene@eos.arc.nasa.gov (Eugene Miya) Subject: Re: Apollo 12 (And Surveyor 3) All material from Surveyor returned from to Moon to the Earth (in fact all returned lunar material including donated Soviet samples in US possesion) is cataloged with the Lunar Receiving Laboratory (a part of the Universities Space Reseach Association) in Texas. Some of the Surveyor parts are at JPL (as noted by Lee), responsible Center at the time, some are Hughes Aircraft (I believe El Segundo), and some are at LRL, circulated in exhibits, "researched," stored. etc. like at the National Air and Space Museum. There are mechanisms to request these materials. Don't contact me, contact the LRL. Another gross generalization from --eugene miya, NASA Ames Research Center, eugene@aurora.arc.nasa.gov resident cynic at the Rock of Ages Home for Retired Hackers: "You trust the `reply' command with all those different mailers out there?" "If my mail does not reach you, please accept my apology." {ncar,decwrl,hplabs,uunet}!ames!eugene Live free or die. ------------------------------ Date: 17 Jul 89 21:53:38 GMT From: leech@apple.com (Jonathan Patrick Leech) Subject: Re: Apollo-11 lunar experiment still useful after 20 years (Forwarded) In article <28736@ames.arc.nasa.gov> yee@trident.arc.nasa.gov (Peter E. Yee) writes: >APOLLO-11 LUNAR EXPERIMENT STILL USEFUL AFTER 20 YEARS > > An experiment placed on the lunar surface 20 years ago by >the Apollo 11 astronauts continues to be used to study the Earth- >moon system by NASA's Jet Propulsion Laboratory, Pasadena, >Calif., and other scientific centers around the world. And a whole bunch of the powered experiments might still be useful if they hadn't been turned off in the 70's. The same wonderful cost effectiveness that nearly turned off the DSN for Voyager's Neptune encounter. -- Jon Leech (leech@apple.com) Apple Integrated Systems __@/ ------------------------------ Date: 2 Jul 89 11:55:27 GMT From: b.gp.cs.cmu.edu!Ralf.Brown%B.GP.CS.CMU.EDU@pt.cs.cmu.edu Subject: Re: Re^2: Fuel for lunar trip In article <1521@bucket.UUCP>, leonard@bucket.UUCP (Leonard Erickson) writes: }Water takes up less volume than an equivalent mass of hydrogen and oxygen, }even LOX and LH2. It's a matter of *density*. LH2 is not very dense at all, }and LOX isn't a lot better. Water is a very space efficient way of storing }them. And, of course, it won't do what the Challenger's tanks did.... -- UUCP: {ucbvax,harvard}!cs.cmu.edu!ralf -=-=-=- Voice: (412) 268-3053 (school) ARPA: ralf@cs.cmu.edu BIT: ralf%cs.cmu.edu@CMUCCVMA FIDO: Ralf Brown 1:129/46 Disclaimer? I claimed something? "When things start going your way, it's usually because you stopped going the wrong way down a one-way street." ------------------------------ Date: 8 Jul 89 00:14:17 GMT From: zephyr!tektronix!tekgen!tekred!speed!larryb@uunet.uu.net (Larry Brader) Subject: Re: Space Transportation Act In article <615839927.amon@H.GP.CS.CMU.EDU> Dale.Amon@H.GP.CS.CMU.EDU writes: >I have just read the postings on this Act, and it looks very, very good >to me. It does not contain direct subsidies, which other suggested acts >have contained. Such direct subsidies are, in the long run, damaging to >competitiveness. Agree.. > >As much as I would prefer that all payloads were private, I still give >my blessing to the concept that the the government be forced to give up >it's milspecs and such when it is requesting a parcel delivery to LEO. > Considering the harsh enviroment of space I'm surprise you suggest this. What specifications do you actually require for electronics/mechanical items in space? the moon? Larry Brader :: larry%speed.cna.tek.com@relay.cs.net Tektronix nor anyone else is responsible for my views. <> ------------------------------ Date: 11 Jul 89 05:19:40 GMT From: cs.utexas.edu!usc!csun!csusac!sactoh0!mholtz@tut.cis.ohio-state.edu (Mark A. Holtz) Subject: Lunar Landing coverage on A&E Excuse me for asking this, but. . . . On A&E (Arts and Entertainment), there will be a playback of the coverage from a network news archive of the takeoff of Apollo 11, lunar landing, and slashdown "as it happened." Can someone provide more details, especially from when to when it is on (ET and PT please)? Thank you in advance. -- *-> Mark A. Holtz <-> AppleLink PE: Mark Holtz <-* *-> 7943 Sungarden Drive <-> GEnie: M.HOLTZ <-* *-> Citrus Heights, CA 95610-3133 <-> Phone: (916) 722-8522 <-* *-> UUCP: ...!pacbell!sactoh0!mholtz <-> RESERVED PARKING SPACE!! <-* ------------------------------ Date: 11 Jul 89 05:37:19 GMT From: zephyr!tektronix!psueea!parsely!percival!bucket!leonard@uunet.uu.net (Leonard Erickson) Subject: Re: Two Questions gvg@hpcvlx.HP.COM (Greg Goebel) writes: > 1: A recent AEROSPACE AMERICA article discussed nuclear propulsion > and kept referring to "specific impulse", measured in seconds? > Can anyone please define? Isp = thrust/(fuel burn rate) where thrust is in pounds and burn rate is in pounds per second. Of course the dimensions are all screwed up, but what do you expect in English units? -- Leonard Erickson ...!tektronix!reed!percival!bucket!leonard CIS: [70465,203] "I'm all in favor of keeping dangerous weapons out of the hands of fools. Let's start with typewriters." -- Solomon Short ------------------------------ Date: 13 Jul 89 14:03:27 GMT From: mfci!rodman@CS.YALE.EDU (Paul Rodman) Subject: Re: Apollo 12 (And Surveyor 3) In article <8907112246.AA01428@angband.s1.gov> writes: > > Can anyone fill me in as to what the Apollo 12 astronauts did when they >found the SURVEYOR 3 probe on the lunar surface? I read a while back (in >a now-forgotten magazine) that they took the probe's camera off for "a >souvenir"... > As I recall they took a camera mirror off in order to study the surface pitting, etc. on an object that had been on the surface for quite a long time. pkr ------------------------------ Date: 13 Jul 89 16:32:07 GMT From: cs.utexas.edu!milano!kepler!richter@tut.cis.ohio-state.edu (Charlie Richter) Subject: Re: Apollo 12 (And Surveyor 3) > Can anyone fill me in as to what the Apollo 12 astronauts did when they > found the SURVEYOR 3 probe on the lunar surface? Al Bean removed three pieces of Surveyor III: some wire cable, some aluminum tubing, and the soil scoop. (These three pieces were brought back to Earth for study.) -- Charlie Richter MCC Austin, Texas uucp: richter@milano.uucp arpa: richter@mcc.com "The panic ... was not due to anything fundamentally weak in either business or finance. It was confined to the market itself." - WSJ, Oct. 31, 1929 ------------------------------ End of SPACE Digest V9 #553 *******************