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, 29 Mar 89 00:18:03 -0500 (EST) Message-ID: Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Wed, 29 Mar 89 00:17:54 -0500 (EST) Subject: SPACE Digest V9 #319 SPACE Digest Volume 9 : Issue 319 Today's Topics: NSS Hotline Update 3/24/89 Would you like to go to Mars in 1992? Re: Room Temperature fusion - possible indications? Re: Room Temperature fusion - possible indications? Re: Simulating Teleoperations, off road handling Re: Room Temperature fusion - possible indications? Re: Room Temperature fusion - possible indications? Re: Room Temperature fusion - possible indications? Re: Room Temperature fusion - possible indications? CDSF Celebration ---------------------------------------------------------------------- Date: 26 Mar 89 20:56:00 GMT From: arisia!cdp!jordankatz@lll-winken.llnl.gov Subject: NSS Hotline Update 3/24/89 This is the National Space Society's Space Hotline for the week ending March 24, 1989. Last Wednesday Dr. James Fletcher resigned as NASA Administrator. His resignation will become effective April 8th, and will end the longest amount of time that one person has been the NASA Administrator. Serving as NASA Administrator from 1971 to 1977, he was primarily responsible for selling the Space Shuttle Program to then President Nixon. In 1986 he took over the NASA Administrator position once again to supervise NASA's recovery from the Challenger accident, and to push the program into a system that put more emphasis on quality control and safety. On April 8, Deputy Administrator Dale Myers will become acting Administrator until President Bush appoints a new Administrator. NASA and the space industry are growing concerned over President Bush's lack of action on key issues despite his strong vocalization of support for the civil space program. An indication of Bush's support will be reveled in how strongly the Administration fights for the NASA budget. OMB Director Richard Darman has come out in favor of the budget and that's a good start. A second concern is about the time it has been taking to fill key appointments. And the fact that the National Space Council despite having a director still has no office and staff, and awaits an executive order from Bush to set up shop. At Kennedy Space Center... On Thurs. 8am the Space Shuttle Atlantis completed its roll out to the pad, where the $530 million Magellan Venus Radar Mapping probe sits in a clean room waiting to be installed into Atlantis's cargo bay. Magellan is the first planetary mission to be launched by the US since 1978. In addition the radar mapping probe is the first interplanetary probe built to be launched specifically on the Space Shuttle. The launch is scheduled to take place on April 28, 1989 and must commence by May 23, 1989 while the launch window to Venus is open. Today the Discovery Orbiter is scheduled to arrive at Kennedy Space Center at 5pm. Discovery, that just returned from its five day mission last week is reported to be in excellent condition. Although technician are checking out two small leeks that occurred in Discovery's main engine no. 1. As part of a large NASA sounding rocket program, two Black Brant Xs and two Nike-Orions are scheduled to be launched from Canada's Churchill Research Range on Hudson Bay. Two of the rockets carrying colorful barium releases, will be visible, if cloud cover permits, to individuals in Eastern and Central Canada, and in the North Central US. They're scheduled to launched in late March. The other two rockets were scheduled to have been launched this past week, and carried upper atmosphere experiments which are not visible to individuals on the ground. Last Thursday the DOT's Office of Commercial Space Transportation issued a revised commercial launch manifest which calls for 23 launches. The first of the commercial launches will take place on March 29th. Space Services Incorporated will launch a sounding rocket carrying microgravity experiments, from the White Sands missile test range in New Mexico. The launch will provide seven minutes of 0g for the six materials processing experiments designed and constructed by the University of Alabama Consortium for Materials Processing. To meet regulations to get a license to launch the mission, SSI must have $1 million in liability for damage to Govt. property, and $10 million in coverage for third party property. Transportation Secretary Samuel Skinner stated that the US is moving into an era of commercial space operations signified by the US launch industry moving off the drawing board and into operations. Friday's (March 24th) issue of the New York times features National Space Society activists Glenn H. Reynolds, NSS council S.Neil Hosenball and C. Dennis Ahearn in an article about space law. The article outlines these lawyers participation in current issues of space law especially those pertaining to commercial launch services. The Soviet news agency TASS reported that an unmanned Progress 41 supply spacecraft that was launched on March 16, has docked with the Mir Space Station. The docking was carried out through the coordinated use of onboard automated equipment, ground controllers and two Mir Cosmonauts. ------------------------------ Date: Mon, 27 Mar 89 07:37:35 PST From: anderson%asuipf.span@VLSI.JPL.NASA.GOV (Don) Subject: Would you like to go to Mars in 1992? X-St-Vmsmail-To: JPLLSI::"space@andrew.cmu.edu",ANDERSON MS/PhD level software designer/programmer wanted for the NASA Mars Observer spaceflight project. Work involves the development of instrument command and data analysis software for an imaging infrared spectrometer. Both a background in physical sciences and mathematics, and strong UNIX/C, DBMS, and graphics experience are desired. Salary commensurate with experience. Send letter of interest, resume, and names of three references/letters of recommendation to: Don Anderson Geology Department Arizona State University Tempe, Arizona 85287-1404. 602-965-6336 uucp: sun!sunburn!tes!anderson ------------------------------ Date: 26 Mar 89 00:37:53 GMT From: attcan!utzoo!henry@uunet.uu.net (Henry Spencer) Subject: Re: Room Temperature fusion - possible indications? In article <5849@pdn.nm.paradyne.com> alan@rnms1.UUCP (0000-Alan Lovejoy) writes: >>We *really* need access to the asteriods, which have plenty of platinum- >>group metals. > >Then we also need either very advanced AI, very advanced biotechnology, >or artificial gravity: It appears that low gravity fields shut down the >human immune system in a way similar to the AIDS virus. Humans will NOT >be spending any appreciable percentage of their lives in space until we >can fix our immune systems so that they tolerate low gravity, or until >we can provide gravity artificially. As things stand, a career as an >asteroid miner would not last long... Nonsense. Supplying artificial gravity using centrifugal force is no big deal, although getting the radius long enough to avoid inner-ear problems is certainly a nuisance. People have designed current-technology Mars missions which have artificial gravity. You've also forgotten at least two other ways out of the problem: better space propulsion to cut down the lengths of the missions, or just being patient and persistent with unmanned missions (the main penalty of not having on-site intelligence for asteroid mining is that any serious mistake means that operations stop until replacement hardware arrives). It is also an unproven conjecture that advanced biotechnology will be needed to deal with the immune-system problem. There might be some simple fix. -- Welcome to Mars! Your | Henry Spencer at U of Toronto Zoology passport and visa, comrade? | uunet!attcan!utzoo!henry henry@zoo.toronto.edu ------------------------------ Date: 25 Mar 89 19:03:03 GMT From: mailrus!jarvis.csri.toronto.edu!ois.db.toronto.edu!jdd@tut.cis.ohio-state.edu ("John D. DiMarco") Subject: Re: Room Temperature fusion - possible indications? In article <5849@pdn.nm.paradyne.com> alan@rnms1.UUCP (0000-Alan Lovejoy) writes: >Then we also need either very advanced AI, very advanced biotechnology, >or artificial gravity: It appears that low gravity fields shut down the >human immune system in a way similar to the AIDS virus. Humans will NOT >be spending any appreciable percentage of their lives in space until we >can fix our immune systems so that they tolerate low gravity, or until >we can provide gravity artificially. As things stand, a career as an >asteroid miner would not last long... > Why not a rotating astronaut habitat? Centrifugal forces could provide "artificial gravity" at the rims of such a habitat. It's not really a new idea... Thus an asteroid miner would be able to spend some time in a >0 G environment. >Alan Lovejoy; alan@pdn; 813-530-2211; AT&T Paradyne: 8550 Ulmerton, Largo, FL. -- John DiMarco * We will live in the light * jdd%db.toronto.edu@relay.cs.net jdd@db.toronto.edu jdd@db.utoronto.ca jdd@db.toronto.cdn {uunet!utai,watmath!utai,decvax!utcsri,decwrl!utcsri}!db!jdd jdd@utcsri.UUCP ------------------------------ Date: Sat, 25 Mar 1989 14:17-EST From: Dale.Amon@H.GP.CS.CMU.EDU Subject: Re: Simulating Teleoperations, off road handling I wonder if Lucius has ever driven off road. I have. You bet your sweet A** you have to take running starts. The scenario discussed by Andy Higgins is not that unusual for real off road 4x4 driving in hill country. I might also add that one of the maxims of off road driving is "You WILL get stuck". That is why it is always wise to go four wheeling with at least 2 vehicles so that one can either: a) pull you out b) help you fix what you broke c) go for help (or more beer while you wait) You'd better think in terms of the equivalent for your lunar teleoperation unless you are willing to leave the lunar surface strewn with stuck buggies. Driving off road in REAL time on unknown ground takes skill and attention. (I won't claim a terribly high level of skill, although I did once drive down some stairs) Teleoperation of a vehicle on rough unknown ground is going to be APPALLINGLY difficult unless you limit your travel to relatively flat areas and keep your velocity very low. (the Lunikhod approach). I would suggest that legged vehicles such as the Mras Rover concept being worked on here at CMU are much better suited to remote teleoperation than wheeled vehicles simply because they DON'T have the same "GUN IT, DROP THE CLUTCH, TAKE THE HILL AND SLAM ON THE BRAKES AT THE TOP" type of control needed for operating a wheeled off road vehicle. Even if you were driving tanks, you still have to have fine control to take on obstacles. Ask your nearest Army type. PS: At least on the moon I couldn't get stuck in the middle of a river... ------------------------------ Date: 26 Mar 89 02:56:15 GMT From: xanth!nic.MR.NET!shamash!com50!questar!dave@ames.arc.nasa.gov (David Becker) Subject: Re: Room Temperature fusion - possible indications? On McNeil Lehrer one the researchers implied that they had a theoretical basis for pursuing this idea. An AP article said they put $100K of 'their own' money (I assume 'their own' means the department's) because the idea was so unconventional. Any clues as to what the basis they were working from was? At least one good enough to risk $100K on it? The AP article and I believe the interview said they had taken 4 years to confirm their results. Has no one else in the fusion community heard about this or started some of their own work? According to Glen Chapman's summary of the Financial Times article (thanx) these guys have a decent rap. Their conduct on the ML interview didn't suggest any moment-of-glory aspirations but they did sound as though they had expected a very skeptical reaction. Now these guys are smart. Wouldn't they have done A LOT of homework to be as sure as possible their careers didn't become, as Paul Deitz said, s**t when they announced cold fusion. Cold fusion and warm superconducters ... who'd a thunk rec.humor's oxymorons would spread here (and who would have wanted it too :-) -- David Becker and another bug bites, and another bug bites another bug bites the dust db@kolonel.MN.ORG ------------------------------ Date: 26 Mar 89 00:12:18 GMT From: art@cs.ucla.edu (Arthur P. Goldberg) Subject: Re: Room Temperature fusion - possible indications? In article <13437@steinmetz.ge.com> oconnor%sungod@steinmetz.UUCP writes: > >My 12-yr old CRC quotes palladium at $80/troy-ounce, >and platinum at $150/troy-ounce. For reference, gold was $200/ounce. >-- The closing quotes Thursday March 23 on the commodities exchange were platinum $546/troy oz and palladium $146/troy oz. Arthur Goldberg Illegitimati Non Carborundum 3680-D Boelter Hall UCLA Computer Science Department LA, Ca. 90024 (213) 825-2864 art@cs.ucla.edu ------------------------------ Date: 26 Mar 89 22:49:00 GMT From: mtxinu!taniwha!paul@ucbvax.Berkeley.EDU (Paul Campbell) Subject: Re: Room Temperature fusion - possible indications? In article <13437@steinmetz.ge.com> oconnor%sungod@steinmetz.UUCP writes: >My 12-yr old CRC quotes palladium at $80/troy-ounce, >and platinum at $150/troy-ounce. For reference, gold was $200/ounce. Buy palladium futures now :-) Paul -- Paul Campbell, Taniwha Systems Design, Oakland CA ..!mtxinu!taniwha!paul "'Give me your tired, your poor - I'll piss on them' that`s what the Statue of Bigotry sais. 'Let`s club them to death, get it over with and just dump them on the Boulevard'" - Lou Reed, "New York" ------------------------------ Date: 26 Mar 89 05:50:47 GMT From: phoenix!jsm@princeton.edu (John Scott McCauley Jr.) Subject: Re: Room Temperature fusion - possible indications? One thing that bugs a lot of people about this discovery is that based on the news reports, not very many neutrons are produced -- supposedly they are off by 9 orders of magnitude according to conventional theory. Here is a short explanation about the conventional theory of D-D reactions. [begin theory] There are two fusion reactions involving D-D. They are 3 D + D -> He + n (neutron energy about 2.5 MeV) D + D -> T + p (proton energy about 1 MeV). For interaction energies above 10 keV, the cross section of the two reactions and hence the reaction rates are about the same. These have been measured with accelerators. These data agree well with the cross-sections obtained by doing a WKB approximation of a Coulomb barrier penetration problem. According to theory and the data a high temperatures, there is a slight dependence on the spin orientation of the D-D at high temperatures. Even if the deuterium ions are spin-polarized, at high temperature you will always see at both neutrons and protons. So most think that at room temperature both reactions would also happen at about the same rate. Therefore 4 watts of fusion power probably would produce 0.5 watt or so of 2.5 MeV neutrons. This supposedly is a big neutron source -- people exposed to it for some period of time may lose hair or even die. [end theory] So if it is fusion and their neutron counts are off by a factor of 1e-9 (as was claimed in the press conference I think), then the aneutronic (second) branch seems to be dominant. So does anyone remember enough WKB theory to figure out if the spin-dependence of the cross-sections can account for this large number? One more thing, it is hard to tell sometimes on a mass spectrometer if you have Helium-3 or Tritium. Mass spectrometers measure the charge-to-mass ration. So singly-ionized helium-3 would show up as mass 3, Tritium would show up as 3, and doubly-ionized helium would be mass/q of 1.5. Tritium beta-decays to helium-3, so eventually all of the tritium (half-life about 12-13 yrs) would wind up as helium-3. Scott P.S. Most of this stuff is from memory, so might be useful to double check, but I think most are right to about 20% or so. ------------------------------ Date: 26 Mar 89 21:32:37 GMT From: agate!web%garnet.berkeley.edu@ucbvax.Berkeley.EDU (William Baxter) Subject: CDSF Celebration Space activism is alive and well in Tucson! Some 70 people toured the Space Bispheres Ventures facility in Oracle Junction, AZ. Many of us later celebrated our successful efforts to kill the NASA Space Station. Now we can get on with a real space program. William Baxter ARPA: web@{garnet,brahms,math}.Berkeley.EDU UUCP: {sun,dual,decwrl,decvax,hplabs,...}!ucbvax!garnet!web ------------------------------ End of SPACE Digest V9 #319 *******************