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, 3 Dec 89 01:33:12 -0500 (EST) Message-ID: Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Sun, 3 Dec 89 01:32:50 -0500 (EST) Subject: SPACE Digest V10 #299 SPACE Digest Volume 10 : Issue 299 Today's Topics: Accessible C Type Asteroid Found Space and Masculine Identity Re: What happened when SkyLab came down? [was : What happens when a satellite comes down? Re: NASA Headline News for 12/01/89 (Forwarded) Re: Why NASA wants to go to Mars Re: What happened when SkyLab came down? [was : What happens when a satellite comes down? Re: Manned vs Unmanned Mission to Mars Re: So how elastic is the market? SUBSCRIBE Re: shuttle question ---------------------------------------------------------------------- Date: Tue, 28 Nov 89 07:42:26 PST From: mordor!lll-tis!ames!scubed!pnet01.cts.com!jim@angband.s1.gov (Jim Bowery) To: ames!lll-tis!mordor!angband!space@angband.s1.gov Subject: Accessible C Type Asteroid Found C asteroid 1979VA was recently identified as having characteristics which make it economically competitive with the moon as a source of oxygen. This is the first asteroid found to have such characteristics. See Lucy McFadden's unpublished manuscript to appear and "Economic Accessibility of Near Earth Asteroids" by Andrew Cutler Princeton Space Manufacturing Conference 1987 Typical RESEARCH contract ($ = 1million): $ Typical DEVELOPMENT contract: $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ ------------------------------ Date: Thu, 30 Nov 89 10:16:07 PST From: mordor!lll-tis!ames!scubed!pnet01.cts.com!jim@angband.s1.gov (Jim Bowery) To: ames!lll-tis!mordor!angband!space@angband.s1.gov Subject: Space and Masculine Identity The expansion of terrestrial life to space is the greatest opportunity for a positive resolution to the contemporary crisis in masculine identity that currently plagues western cultures. As discussed in George F. Gilder's brilliant analysis: "Sexual Suicide", the growing denial that males require affirmation of their masculine identity has resulted in western cultures exhibiting a kind of geopolitical neurosis. A comprehensive list of the effects would be voluminous. The political power of feminism, the space program and the war economy are based, primarily, on this cultural neurosis. The economic symptoms include growing national debt for worthless defense and welfare spending, a crippled space effort (with resulting zero-sum global thinking) and abandonment of manufacturing technology in favor of the technologies of the "service" or "information" economy. The social symptoms (usually identified with "feminism") include a dramatic breakdown of effective family forms (extended as well as nuclear), increase in both the openness and fequency of "alternative sexual lifestyles" (including pedophilia, homosexuality, pornography, prostitution, and other barren sexual modes), increasing alienation through mobility and the erosion of moral and ethical standards in human relations. Something that Gilder didn't go into is that this has come about as reaction to the loss of our frontiers combined with the unacceptability of war as a way of getting rid of the "excess males". Humans have an effective "harem size" of about 1.8 according to comparative primate studies. The resulting excess males are usually driven away to bring back protien (meat), spread the tribal culture and genes to other tribes or die in wars to expand the tribe's territory. More recently, they expanded agricultural areas into surrounding habitat. Of course, this only addresses human males -- similar patterns can be found throughout species of mammals and, in more abstract ways, in virtually all sexual species with an effective harem size >1. The early pioneering of this country is just the most recent, and in many ways, trivial, example of this very old and deep pattern of male rejection and habitat expansion. Sooner or later, (hopefully sooner), rationality will prevail we will attempt to do something effective about The Excess Male Question. At that time, we will either choose (as we have apparently done in the handling of the HIV epidemic) to engage in a pogrom against the excess males (similar to Hitler's answer to The Jewish Question) or we will allow them to pursue a positive role -- an opportunity to expand our habitat. Success through risk is the way to affirmation of male identity. This is what makes images of manned spaceflight so politically powerful. The image of young mother exploding in a failed space launch shook our denial that space was not risky and therefore, was no longer the province of the male risking life and limb for territorial expansion. If she had died in attempt to save her child it would have been not an outrageously absurd loss, but an emotionally understandable tragedy. With this in mind we might choose to redirect the resources we have been borrowing to prop up male identity in the war economy and instead establish a government program to support a bunch of excess males (space nerds) in a space colony. This, however, would be ineffective. First of all, we have to recognize that the government's (tribe's) assets are more valuable than the affirmation of a few people in a false sense of masculine identity and the supposed "spin-offs" of such an effort. The tribe has no obligation to provide males with their sense of masculine identity (which is the real reason feminists bristle at government supported machismo). If a male wants to feel himself to be a Man, he must earn his identity with his own resources and those of his peers. This is where NASA and government spending on the creation of images of machismo (yes even those including Sally Ride) is most destructive to genuine pioneering of the space frontier. By taking advantage of the suppression of masculine affirmation, NASA's heroic images not only waste valuable resources that could be used in legitimate economic pursuits, but they also mock and devalue the images of true heroism. This affirmation can only result from entrepreneurs risking their own fortunes, and finally, their lives, to accomplish aims of real value. The mythic proportions of such heriosm are unprecendented as they are on behalf not just of a tribe, a nation or even the human species -- but of all life. Typical RESEARCH grant ($ = 1million): $ Typical DEVELOPMENT contract: $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ ------------------------------ Date: 2 Dec 89 10:53:34 GMT From: wuarchive!cs.utexas.edu!jarvis.csri.toronto.edu!utgpu!utzoo!henry@eddie.mit.edu (Henry Spencer) Subject: Re: What happened when SkyLab came down? [was : What happens when a satellite comes down? In article <49061@bbn.COM> ncramer@labs-n.bbn.com (Nichael Cramer) writes: >... its reentry trajectory (i.e. down the Atlantic, >around the tip of Africa and out across the Indian Ocean) was just too >fortuitous to be blind luck. His arguement was that if this had been the >case, we would have heard more about it. You are right, your friend is wrong. NASA had some slight control over Skylab's reentry, and used it to speed up the reentry a little when it became clear that that would minimize the chances of hitting populated areas. As it happened, this wasn't entirely successful, since the part of Australia affected has a sparse but non-zero population, but the alternative was a reentry track likely to involve North America or Europe. -- Mars can wait: we've barely | Henry Spencer at U of Toronto Zoology started exploring the Moon. | uunet!attcan!utzoo!henry henry@zoo.toronto.edu ------------------------------ Date: 2 Dec 89 21:23:45 GMT From: haven!uvaarpa!hudson!bessel.acc.Virginia.EDU!gl8f@purdue.edu (Greg Lindahl) Subject: Re: NASA Headline News for 12/01/89 (Forwarded) In article <37103@ames.arc.nasa.gov> yee@trident.arc.nasa.gov (Peter E. Yee) writes: >The Washington Post reports Vice President Quayle and the >National Space Council, held several meetings this week to >evaluate alternative ways of sending humans to the moon and to >Mars. Included in one of the sessions were author Tom Clancy, >scientists Carl Sagan and Edward Teller; former astronaut Michael >Collins and physicist Charles Townes. This left me rolling on the floor. Carl Sagan and Edward Teller were listed in the same category, while Charlie Townes was respectfully labeled with the actual field he does work in. :-) ------ Greg Lindahl ------------------------------ Date: Fri, 1 Dec 89 07:13:39 PST From: mordor!lll-tis!ames!scubed!pnet01.cts.com!jim@angband.s1.gov (Jim Bowery) To: ames!lll-tis!mordor!angband!space@angband.s1.gov Subject: Re: Why NASA wants to go to Mars Paul Dietz writes: >In article <671@visdc.UUCP> jiii@visdc.UUCP (John E Van Deusen III) writes: >>Paul Dietz writes: >>> I am amazed that people are supporting a $400 B project that will >>> send four people briefly to Mars. Even if you ignore science, >>> what could possibly be the justification for this? >> >>The $400 billion figure is a best-effort estimate of the MINIMUM cost >>to avert a MAJOR depression in the military-industrial complex, not >>considering any contractors outside of important population states. > >I hope you're not repeating the old canard about government spending >necessarily creating wealth. That $400 B would have to come out of >someone's pockets; this technowelfare program would only spread the >cost of economic restructuring, not remove it (and the taxes would >be a disincentive to real wealth creation elsewhere in the economy). > >Also, if we do spend $400 B, can't we at least get something tangible >out of it? Science, at least, has proved to have tangible value. Just the prevention of another Great Depression -- that's all we'll get out of it. Since WW II pulled us out of the Great Depression, it is no longer macroeconomic THEORY that defense spending is all that stands between us and that dark abyss of poverty... it is macroeconomic FACT and therefore credible enough to justify the borrowing of 3 trillion dollars during the Reagan/Bush military buildup. Look at the result! We have a BOOMING economy! We are on our way to MARS!! THERE IS NO LIMIT TO WHAT AMERICANS CAN DO WHEN WE BORROW TRILLIONS OF DOLLARS FROM FOREIGN NATIONALS!!! And I don't want to hear anything about these foreign nationals starting to exert political influence and subverting our democractic institutions. Just because they have money doesn't mean they can subvert our institutions -- we would never let our own super-rich control our branches of government so there is just no WAY foreigners can exert such influence. By the way, I hear that feudal lords require sexual access to their surfs' wives -- not that anyone in the US can afford to have a family anymore anyway. At least you will have the privilege of raising a genetically superior child, probably with the economic support of your feudal lord. He might even let YOU impregnate your wife as well -- if you express enough personal loyalty to him. --- Typical RESEARCH grant ($ = 1million): $ Typical DEVELOPMENT contract: $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ ------------------------------ Date: 2 Dec 89 17:19:10 GMT From: vsi1!daver!wombat!george@apple.com (George Scolaro) Subject: Re: What happened when SkyLab came down? [was : What happens when a satellite comes down? In article <49061@bbn.COM> ncramer@labs-n.bbn.com (Nichael Cramer) writes: >In article loughry@tramp.Colorado.EDU (J. Loughry) writes: >> Solar Max is coming down. According to the papers, [...] > >When SkyLab came down, it was treated by the papers, Johnny Carson (and the >Man In The Street) as more or less a miracle that nobody died. But I tried >arguing with a friend that its reentry trajectory (i.e. down the Atlantic, >around the tip of Africa and out across the Indian Ocean) was just too >fortuitous to be blind luck. His arguement was that if this had been the Eh, what do you mean fortuitous blind luck? Skylab crashed into Western Australia, in the goldfields behind Kalgoorlie. Since Kalgoorlie is pretty close to due east, 600km, of Perth (the capital with 1 million or so) it seems to me that if had come down a tiny bit sooner it would have been less then fortuitous. Many of the locals went out on a scrap locating mission, probably the closest us poor aussies have got to space tech. in a long time, and brought back bits and pieces, certainly some were large enough to squish a person. -- George Scolaro george@wombat (try {pyramid|sun|vsi1|killer} !daver!wombat!george) ------------------------------ Date: 3 Dec 89 00:40:15 GMT From: attcan!utgpu!utzoo!henry@uunet.uu.net (Henry Spencer) Subject: Re: Manned vs Unmanned Mission to Mars In article <20177@pasteur.Berkeley.EDU> scott@scheme.berkeley.edu writes: >What are the advantages of actually sending men to Mars? Is it true that they > are considering this before sending any roving unmanned probes? There is talk about any number of possible approaches. >If so, why? Aren't unmanned probes far less expensive and more efficient? It depends on what you are doing. For just taking pictures from a distance, unmanned probes are definitely far less expensive and more efficient. For investigating a complex and rough terrain (Mars is *really* rough) close up, in a wide variety of ways, at a distance from Earth that makes teleoperation difficult, the situation is rather less clear. The classic example is the mysterious results from the Viking life detectors, *probably* due to highly active surface chemistry, which could not be investigated in detail because the Viking landers were more or less limited to doing investigations that had been thought about in advance. Another example is the problem of operating a robot vehicle at reasonable speeds in hazardous terrain with speed-of-light lags measured in minutes. The best way to do an in-depth preliminary investigation of Mars would probably be a mixed approach: teleoperation from a manned vessel in Mars orbit. (This also avoids the sticky question of whether it is wise to make an immediate manned landing on a planet which just barely might have life. Life definitely cannot be widespread on Mars, but small amounts in unusually favorable areas would not be inconsistent with the Viking results.) Unfortunately, this doesn't seem to satisfy either ideology. The robotniks say "keep those icky humans out of the plans", while the Mars-or-busters want a manned landing ASAP and no compromises. -- Mars can wait: we've barely | Henry Spencer at U of Toronto Zoology started exploring the Moon. | uunet!attcan!utzoo!henry henry@zoo.toronto.edu ------------------------------ Date: Wed, 29 Nov 89 07:59:28 PST From: mordor!lll-tis!ames!scubed!pnet01.cts.com!jim@angband.s1.gov (Jim Bowery) To: ames!lll-tis!mordor!angband!space@angband.s1.gov Subject: Re: So how elastic is the market? Allen W. Sherzer writes: >We are preparing something on HR2674 to show our congresstype >later this year. One piece of information we need to know is >some estimate of how elastic the market is. In other words, >if the cost to launch a pound were cut in half, how much bigger >would the market get in terms of pounds to orbit? Anybody have >access to any graphs on this or can point me to a source? This is a recurring problem in new, technically driven, markets. For example, in the 1950's, a study conducted by the world's foremost authorities concluded that one computer, with approximately the power of a 80386 connected to the phone network with a LOT of modems, could handle all computation requirements for the US. A lot of people wanted to start a National Central Computer Project (don't recall the name at the moment). If you get some estimates that overcome the inherent handicap of doing extrapolation rather than interpolation, let me know, I'd be interested. PS: Cost/pound isn't the only driver in the market -- being able to purchase a launch when you want it rather than waiting a decade or so as with the Shuttle, can be a BIG consideration these days. Typical RESEARCH grant ($ = 1million): $ Typical DEVELOPMENT contract: $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ ------------------------------ Date: Sat, 02 Dec 89 20:31:24 CST From: SPACE STUDIES STUDENT ORGANIZATION Subject: SUBSCRIBE SUBSCRIBE ------------------------------ Date: 2 Dec 89 10:35:50 GMT From: wuarchive!cs.utexas.edu!jarvis.csri.toronto.edu!utgpu!utzoo!henry@eddie.mit.edu (Henry Spencer) Subject: Re: shuttle question In article <16869@nuchat.UUCP> steve@nuchat.UUCP (Steve Nuchia) writes: >[SSMEs] are reusable engines. That means they have to be taken >apart and put back together, piece by piece and at great expense, >before you can light them again. No, that is a consequence of them being *NASA* reusable engines -- that is, designed for absolute maximum performance and pushing technology very hard in new directions (nobody had ever built an engine resembling the SSME before). Test-stand experience indicates that other liquid engines are significantly *more* reusable than SSMEs, with half an hour or more of accumulated firing with minimal maintenance fairly common for some designs. Centaur's RL-10 engines are cleared for multiple ignitions and over an hour of firing time on a single flight, i.e. with zero maintenance. They are, in principle, cleared for much more if you can do even the most minimal maintenance in between. The high-time RL-10 has fired for over four hours, with relatively modest maintenance by SSME standards. The reason these engines are not thought of as being reusable is simply that the vehicles currently using them are missile derivatives that are not recoverable. -- Mars can wait: we've barely | Henry Spencer at U of Toronto Zoology started exploring the Moon. | uunet!attcan!utzoo!henry henry@zoo.toronto.edu ------------------------------ End of SPACE Digest V10 #299 *******************