Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from holmes.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 ; Wed, 1 Mar 89 05:17:16 -0500 (EST) Message-ID: <4Y2wAWy00UkZ8hi05G@andrew.cmu.edu> Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Wed, 1 Mar 89 05:17:06 -0500 (EST) Subject: SPACE Digest V9 #269 SPACE Digest Volume 9 : Issue 269 Today's Topics: Re: Synthetic Aperture Radar Re: First concert from space--update Re: Forbes article on manned space program Re: The never-ending argument Re: centrifugal forces Re: Voyager Images Re: First concert from space--update ESA data Re: SPACE Digest V9 #257 Re: 1992 moon base Re: NASA planetary footage? Re: 1992 moon base ---------------------------------------------------------------------- Date: Fri, 24 Feb 89 11:23:25 SET From: ESC1325%ESOC.BITNET@CUNYVM.CUNY.EDU Comment: CROSSNET mail via SMTP@INTERBIT Subject: Re: Synthetic Aperture Radar From: Lutz Massonne (+49-6151-886-701) Subject: Re: Synthetic Aperture Radar In SPACE Digest #256 Joe Dellinger asked about SAR applications to geophysical questions. Hopefully, in late 1990 the European remote sensing satellite ERS-1 will be launched, carrying among other instruments a synthetic aperture radar and a radar altimeter. The satellite mission is dedicated primary to sea and polar ice observations, but some land applications are also proposed. These will engage mainly the SAR and comprise (among other points) - cartography - geology mapping The source I have is the ERS-1 Programme Proposal Volume 1, System Description and Mission Capabilities. It is an ESA document, but my copy has no reference number. I would suggest to contact the ESA publications service at ESTEC about this. I have no information how the experiments for the ERS-1 satellite will be selected, but there is some operation time available for experiments beside the standard applications (sea surface and ice coverage mapping etc.) Regards, Lutz (Standard disclaimer applies) +------------------------------------------------------+ | Address: Dr. Lutz Massonne, OAD/mbp, ESOC, | | Robert-Bosch-Str.5, D-6100 Darmstadt, FRG | +------------------------------------------------------+ ------------------------------ Date: 24 Feb 89 18:56:54 GMT From: wb1j+@andrew.cmu.edu (William M. Bumgarner) Subject: Re: First concert from space--update welcome to capitalism. b.bum wb1j+@andrew.cmu.edu ------------------------------ Date: 24 Feb 89 18:26:22 GMT From: mailrus!jarvis.csri.toronto.edu!utgpu!utzoo!henry@tut.cis.ohio-state.edu (Henry Spencer) Subject: Re: Forbes article on manned space program In article <150@beaver.cs.washington.edu> szabonj@minke.UUCP (Nick Szabo) writes: >Do we need 1 g, and do we need 1 rotation per minute? Nobody knows for sure on either. We have no experience with low but non-zero gravity over substantial periods. The best current guess is that rotation rates greater than 1 RPM will cause trouble, but again we lack real experience. >I suggest an experiment >using long tethers, with small biological modules spaced at intervals >(or sliding) to provide various levels of gravity from 0 to 1 g... An excellent idea which has been suggested a number of times. Unfortunately, nobody is planning to do anything about it any time soon, except possibly the Soviets. -- The Earth is our mother; | Henry Spencer at U of Toronto Zoology our nine months are up. | uunet!attcan!utzoo!henry henry@zoo.toronto.edu ------------------------------ Date: 25 Feb 89 00:30:08 GMT From: vsi1!v7fs1!mvp@apple.com (Mike Van Pelt) Subject: Re: The never-ending argument In article <154@beaver.cs.washington.edu> szabonj@minke.UUCP (Nick Szabo) writes: sparks@corpane.UUCP (John Sparks) writes: <> ... most supporters of the Unmanned Program are against the Manned <>Program altogether, or put it off indefinately. < If so, can they be obtained in machine-readable format... Well, sure, if you have NTSC, composite video or RGB input on your computer. Regards, Hewlett-Packard Bob Niland rjn@hpfcrjn.HP.COM 3404 East Harmony Road [hplabs|hpu...!hpfcse]!rjn Ft Collins CO 80525-9599 ------------------------------ Date: 24 Feb 89 17:51:09 GMT From: mailrus!jarvis.csri.toronto.edu!utgpu!utzoo!henry@tut.cis.ohio-state.edu (Henry Spencer) Subject: Re: First concert from space--update In article <10325@bcsaic.UUCP> rwojcik@bcsaic.UUCP (Rick Wojcik) writes: >>A company in Los Angeles called Orbit Productions has been formed to >>stage the first ever concert from space. A large portion of the proceeds >>from this venture is to be donated to various charities. > >... There is no justification whatever >for sending Senators, teachers, and singers into orbit. The Soviet Union >shouldn't be sending up astronauts from different nations just to score >political points... They aren't any more; all future foreign cosmonauts will be paying passengers. It would surprise me greatly if Orbit Productions got a free ride. Almost certainly they will be asked to pay the commercial price for their trip. What, pray tell, is wrong with carrying people into orbit for a fee? The airlines carry senators, teachers, and singers into the sky all the time. "Things that make profits don't have to make excuses." You should not need permission from government bureaucrats to go into space for purposes *you* consider worthwhile, assuming that you can pay the fare and that there's a vacant seat. It's truly mind-blowing that to book a spaceliner seat in the "Free" World you need a very good reason, years of patience, and approval from 57 layers of bureaucrats, while to book one behind the Iron Curtain you just need the fare in hard currency. -- The Earth is our mother; | Henry Spencer at U of Toronto Zoology our nine months are up. | uunet!attcan!utzoo!henry henry@zoo.toronto.edu ------------------------------ Date: 24 Feb 89 19:28:54 GMT From: asuvax!enuxha!kluksdah@noao.edu (Norman C. Kluksdahl) Subject: ESA data A friend of mine is working on modeling organizational structures, such as NASA before and after Challenger, and the European Space Agency (ESA). For that, he requires any available information about ESA's organization. Does anyone out there know of a good source of such info? Since he doesn't have access to the net, if you would kindly reply to me, I have agreed to forward the info to him. Thanks in advance. Norman Kluksdahl Arizona State University ..ncar!noao!asuvax!enuxha!kluksdah standard disclaimer implied Useful criticism always appreciated. Senseless flames always discarded. ------------------------------ Date: Fri, 24 Feb 1989 12:56-EST From: Dale.Amon@H.GP.CS.CMU.EDU Subject: Re: SPACE Digest V9 #257 > what about: there's a guy i know who uses his cat to clean his instrument. > he removes the optical component package at the viewing end and slides the > animal through the tube to pick up the dust. If you look through the tube at the same time, would you get a CAT scan? :-) ------------------------------ Date: 24 Feb 89 21:06:23 GMT From: phoenix!kpmancus@princeton.edu (Keith P. Mancus) Subject: Re: 1992 moon base Just how close are we to being able to establish this unmanned base we are discussing? In particular, I would like to know how far development of teleoperated mechanical hands has progressed. Do hands capable of picking up and turning a wrench or screwdriver exist? If you have to build all of the tools into the hand, repair will be very expensive and for complex tasks impractical. I can't believe that a 3 second turnaround lag will matter for most jobs. And as I remarked previously, this will provide a good opportunity to test Mars Rover technology without losing the ability to grab control of the machine away from the AI software. So, does anyone who should know think it would be practical to make "repair robots" whose specific task is to repair other robots? Under what circumstances would they prove unable to subsititute for a human repairman? Surely they could change PC boards? -- ------------------------------------------------------------------ -Keith Mancus <- preferred ------------------------------ Date: 24 Feb 89 06:25:46 GMT From: hpfcdc!rjn@hplabs.hp.com (Bob Niland) Subject: Re: NASA planetary footage? re: "Does anyone have information about the availability of color video from NASA's 'recent' interplanetary missions (Voyager, Viking, ICEE), or animations of same? I am helping an area science museum put together a videodisk ..." Check your local videodisc store first. The Optical Data Corporation has already done this. Space Archive series: Vol.1: Space Shuttle STS 5,6,7 (CAV,dual analog sound) 1983 Vol.2: Apollo 17 (CAV,dual analog sound) 1984 Vol.3: Mars and Beyond (CAV,dual analog sound,Some 3D) 1985 Shuttle Downlink (CAV,dual analog sound) 1984 Vol.5: Greetings from Earth (CAV,stereo/dual analog sound) 1985 Vol.6: Encounters (CAV,stereo CX analog sound) 1986 Space Disc Voyager Gallery (CAV,stereo digital & analog sound) 1988 Regards, Hewlett-Packard Bob Niland rjn@hpfcrjn.HP.COM 3404 East Harmony Road [hplabs|hpu...!hpfcse]!rjn Ft Collins CO 80525-9599 ------------------------------ Date: 24 Feb 89 01:59:19 GMT From: tikal!sigma!uw-nsr!uw-warp!gtisqr!kevin@beaver.cs.washington.edu (Kevin Bagley) Subject: Re: 1992 moon base In article <49@enuxha.eas.asu.edu> kluksdah@enuxha.eas.asu.edu (Norman C. Kluksdahl) writes: >In article <1989Feb20.075908.5764@cs.rochester.edu>, dietz@cs.rochester.edu (Paul Dietz) writes: > [ lots of stuff deleted ] >> >> While earth-operated rovers may be slower, they could be operated around >> the clock (at least during the lunar day). Earth-bound operators would be >> many times less expensive than lunar colonists. >> >How about this: If we can put teleoperated lunar rovers on the surface, which >can then survey the terrain and find good deposits of materials, why not >follow up these rovers with teleoperated materials extraction robots, to >extract and stockpile materials such as glass, aluminum, iron, silicon, etc, >for a permanent colony to follow later? > [ lots of stuff deleted ] I think that at some point, we need to get away from every thing being teleoperated, unless we are never going to go there on a permanent basis. Anyhow, What if these rovers (teleoperated from the lunar base) carried along relay stations, simple radio booster on tall poles. The rover goes along planting these things, increasing it's range as it goes. No long range communication sattelite needed, plus, you would be building the foundation for communications between bases. Sounds sort of like Johnny Appleseed :-). I think that living with a 3 second delay will become (quickly) more expensive than operators located on the moon for the following reasons... 1) Things fail (non-repairable from earth). You have to blast another one up there to replace it. Not cheap. 2) Production will be slower. Dont move faster than you can react or you will end up a statistic of #1 above. You probably will anyway since something you picked up could be dropped, thow a rock into the gears etc. etc. etc. 3) Improvements possible on current models, won't get implemented. You would have to go get them, bring em back, update em, and send em back. Or build new ones, making those transistorized blivets outdated. Though they might still be usefull, they cannot be upgraded without extreme expense. (production suffers) 4) One of these mobile lunabots may get stuck. It might require the use of a lever to free it, or maybe a size 9 hex wrench., Damn I wish we had a base to draw on. Resources available in a peopled base, would prove very valuable to mobile travelers. 5) The less quantifiable value of having people available, and ready to act on information not available to lunabots. Something felt funny when I kicked that rock. Hmmmm. Say Suzie, the lunabot can't get between those rocks. Can you grab that 50 lb. chunk of platinum laying there? I think I could go on and on, but I'll stop and let somebody shoot me. :-) -- _____ Kevin Bagley Global Tech. Int'l Inc., Mukilteo WA 98275 206-742-9111 )___) __ _ _ UUCP:uw-beaver!uw-nsr!uw-warp!gtisqr!kevin _/___) (__(__(_)_/_)_ ARPA:uw-nsr!uw-warp!gtisqr!kevin@beaver.cs.washington.edu _______________/ Disclaimer... "I did not say this. I am not here." ------------------------------ End of SPACE Digest V9 #269 *******************