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 ; Thu, 15 Mar 90 01:28:42 -0500 (EST) Message-ID: Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Thu, 15 Mar 90 01:28:08 -0500 (EST) Subject: SPACE Digest V11 #148 SPACE Digest Volume 11 : Issue 148 Today's Topics: RE: SPACE Digest V11 #145 NASA to debut first mobile teacher resource center (Forwarded) AIAA solicits your Moon/Mars ideas NSS? Re: Artificial Gravity SR-71, Shuttle Cryogenics Bowery IS the Problem (was Funding IS The Problem) ---------------------------------------------------------------------- Date: Wed, 14 Mar 90 09:17 CST From: TAHA%TCUAVMS.BITNET@ricevm1.rice.edu Subject: RE: SPACE Digest V11 #145 HELP! How and where can I find sat/photos of the mid-east (particulary Iraq.)?????????? ------------------------------ Date: 15 Mar 90 04:33:06 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Subject: NASA to debut first mobile teacher resource center (Forwarded) Terri Sindelar Headquarters, Washington, D.C. March 14, 1990 N90-15 EDITOR'S NOTE: NASA TO DEBUT FIRST MOBILE TEACHER RESOURCE CENTER News media are invited to a public ceremony, Friday, March 16 beginning at 10 a.m., where NASA Administrator Richard H. Truly will launch a new education project at the Spingarn Complex, 26th St. and Benning Rd. The event will debut the first of what NASA hopes will become a small fleet of tractor-trailer mounted mobile teacher resource centers. Also participating will be D.C. School Superintendent Dr. Andrew Jenkins, NASA Deputy Administrator J. R. Thompson and Director of NASA's Marshall Space Flight Center Jack Lee. After the ceremony, 14 D.C. teachers will experience hands-on activities in the 22-ton mobile education center. A NASA educator and 2 technicians will be on-hand to assist teachers. The mobile teacher resource center is part of a larger NASA education initiative, project LASER, "Learning About Science, Engineering and Research." Friday afternoon, about 100 D.C. teachers will tour LASER. LASER is outfitted with six work stations, each serving two teachers concurrently. Each work station is equipped with a computer providing access to "NASA Spacelink," an electronic information system with a broad range of information and educational materials of value to teachers of grades K-12. The work station also includes a videotape recorder and monitoring system so teachers can copy from a large library of NASA educational videotapes. In a separate common-use work station is a large library of lesson plans, activities and slides. The trailer contains photocopy and photographic equipment that will allow teahers to copy these materials for later use in the classroom. This pilot program has been developed by NASA's Marshall Space Flight Center, Huntsville, Ala., with corporate sponsorship. ------------------------------ Date: Tue, 13 Mar 90 16:53 CST From: Bill Higgins-- Beam Jockey Subject: AIAA solicits your Moon/Mars ideas Original_To: SPACE Well, gang, here's something to provoke thought. Below is the text of an announcement on page 47 ot the March 1990 issue of *Aerospace America*, the magazine of the American Institute of Aeronautics and Astronautics. This group is the principal professional organization for aerospace engineers. ============================================ WE WANT **YOUR** IDEAS on Human Exploration of the Moon and Mars NASA has asked the AIAA to solicit and evaluate innovative *technical* features of the greatest venture in human history. If you or your organization have a technical concept that you think might be useful in exploring the Moon and/or Mars, send a summary *not exceeding one double-spaced page, plus a maximum of one illustration*, to: Ms. Joanne Padron Workshop Program Manager AIAA Headquarters [The ad does not mention the address, but it is 370 L'Enfant Promenade, SW, Washington, DC 20024.] CATEGORIES OF INTEREST ARE: 1) Overall mission architecture 2) Transportation technologies and systems 3) Life-support technologies and systems for space and lunar/Mars surfaces 4) Infrastructure technologies (communications, information sensing and processing, automation and/or robotics, electric power generation, space platforms, spacecraft servicing, lunar/Mars mining and material processing, etc.) The deadline for submission of your ideas is April 15 1990. You will be asked to submit additional material if your concept is selected for more detailed evaluation. Concepts not accepted will be returned. The AIAA will *not* reimburse any cost associated with the submittal, assessment, or implementation of your idea, and does not guarantee any NASA action on it. The AIAA will *not* be responsible for protecting proprietary or classified information-- do *not* send any such material. ============================================== Have fun. And let the Net know what you submitted, okay? O~~* /_) ' / / /_/ ' , , ' ,_ _ \|/ - ~ -~~~~~~~~~~~/_) / / / / / / (_) (_) / / / _\~~~~~~~~~~~zap! / \ (_) (_) / | \ | | Bill Higgins \ / Fermi National Accelerator Laboratory - - Bitnet: HIGGINS@FNALB.BITNET ~ Internet: HIGGINS@FNAL.FNAL.GOV SPAN/Hepnet/Physnet: 43011::HIGGINS ------------------------------ Date: 13 Mar 90 15:01:43 GMT From: hpfcso!hplisa!cola@hplabs.hp.com (-Ken Colasuonno) Subject: NSS? I would like to join NSS. Anybody out there got the necessary information? Please email. -- +----------------------------------------------------------------------------+ | Greg Goebel NET: gvg@hpislx | | Hewlett-Packard HP DESK: GREG GOEBEL / HP0900 / EM | | MSO Marketing PHONE: Telnet/303 679-3424 | | POB 301 / MS-CU312 / Loveland CO 80539 FAX: Telnet/303 679-5957 | +----------------------------------------------------------------------------+ ------------------------------ Date: 14 Mar 90 16:09:20 GMT From: zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!uflorida!mephisto!prism!fsu!gw.scri.fsu.edu!pepke@tut.cis.ohio-state.edu (Eric Pepke) Subject: Re: Artificial Gravity In article <15248@bfmny0.UU.NET> tneff@bfmny0.UU.NET (Tom Neff) writes: > Gyroscopic effects only occur when the delta-vee is out of the plane > of rotation! So long as course corrections are in-plane, you can handle > it with coordinated thrusters. Obviously. > So how do you change the plane of rotation? Flywheels. That's an interesting idea, but you've still got mechanical problems to solve. There will be forces on the linkages between the systems that contain the flywheels and the system that contains the hoop. Even if you had, say, two hoops rotating in opposite directions so that the net angular momentum was zero, there would be stresses in the part connecting the hoops. If you try to change the angular momentum with flywheels within the hoop itself, you get wobble, which rather defeats the purpose of having a rotating hoop in the first place. On the other hand, one might be able to do general direction changes simply by treating the rotating hoop and the nonrotating part as separate systems, and putting thrusters on each. -EMP ------------------------------ Date: 14 Mar 90 13:24:00 PDT From: "SSD::COBBHS" Subject: SR-71, Shuttle Cryogenics To: "space" Lou Adornato (lfa@vielle.cray.com) writes: > >From NASA Headline News, 03/08/90... > >Workers are closing off a high pressure leak, residual liquid > >oxygen and liquid hydrogen reactants are being offloaded and... >I'm surprised that these aren't vented out between the deorbit burn and >re-entry. I'd certainly feel a lot better knowing that there weren't several >(hundred?) Kg of either of these on board during re-entry and landing, >especially if they weren't needed. NASA was probably talking about the PRSD tanks (Power Reactant Storage and Distribution system). These store hydrogen and oxygen for the shuttle's electrical system. Missions are planned very carefully to ensure that cryo reactants _are_ left in the tanks at touchdown. The residuals are something like 20kg LH2 and 200kg LOX (very rough numbers). The shuttle gets its electrical power from fuel cells, which work by electrolysis-in-reverse: feed them hydrogen and oxygen, and pull power from the electrodes. This reaction also generates water, which is collected and stored. Some water is used in reconstituting food and drinks for the astronauts. Some is boiled into vacuum to provide cooling for the shuttle cabin air and electronics. The rest is dumped overboard about twice a day. Under the right lighting conditions (shuttle in sunlight, observer in darkness), a water dump seen from the ground is spectacular. "Water dump," of course, has become astronaut slang for "taking a leak." :-) In article <5712@ur-cc.UUCP>, pkap_ltd@uhura.cc.rochester.edu (Peter Kapner) writes: > Interesting notion. What does everyone think? *Is* there a mach 4 bird > hidden deep in some hanger just waiting to come out and reconnoiter at > 100,000 feet? I'm surprised that no one has mentioned the speculations in the "Visions" issue of _Av Leak_, published around Christmas 1989. A few of the reporters mention rumors about an aircraft named "Aurora," said to be capable of Mach 5. They say that _something_ with a hypersonic shape has been seen over Nevada, flying subsonically with some sort of pulsed engine. The January issue about the end of the SR-71 mentioned in passing that a replacement aircraft would not be operational for a few years yet. As an Air Force officer, "I can neither confirm nor deny these speculations." Cheers! --Stu (COBBHS @ AFSC-SSD.AF.MIL) ------------------------------ Date: Wed, 14 Mar 90 16:30:38 CST From: mccall@skvax1.csc.ti.com Subject: Bowery IS the Problem (was Funding IS The Problem) > jim@pnet01.cts.com (Jim Bowery) via a gate!usenet@ucbvax.Berkeley.EDU (William Baxter) > I find it quite predictable that Fred McCall . . . > refuses to acknowlege the fact that both the bureaucracies who > issue the RFPs and the contractors not only have an interest in > maximizing their cashflows, Please show me where I said that, Mr. Bowery. We quite frankly hear enough idiocy from you that is attributable to you. I, for one, object to your spewing it over by claiming that *I* said it. > but also engage in intense lobbying Oh, golly, the evil contractors talk to Congress to try to get Congress to buy things they want to sell. How HORRIBLE of them. And poor little weak minded CongressCritters obviously *must* be protected from this scourge, since according to Mr. Bowery they apparently aren't capable of resisting such blandishments as a contractor coming in and explaining why they think their system is better. > (of questionable ethics and legality) of Congress toward that end. Right. Let's here it for SuperJim. Only *HE* is brave and true enough to be able to detect these heinous crimes taking place under our very noses! Only *HE* will speak up to save us! Only *he* is honest and true and acts from altruism, while all others are obviously dishonest evildoers bent on only furthering themselves! Oh, SAVE US, Jim! Yeah, right. > He is, after all, the person who coincidentally materialized to > denounce my posting of "Fun Space Fact #1: Launcher Development Costs" Good word, that, Mr. Bowery. COINCIDENTALLY. I don't suppose it occurred to you that I "materialized" to 'denounce' your posting because I've watched the things you post for years and just got tired of watching such foolishness going by without commenting on it. > just as all my subsequent messages to the space news/digest started > "disappearing" without an explanation or bounce-back even though all > my other network communications have been going through without any > problem whatsoever. (Yes, I've made "-request"s for an explanation > to no avail.) Gee, I had a period of time in there after I started posting when I stopped getting the Space Digest for a while. I wonder if maybe Jim might have . . . naaaa, that's SILLY. Maybe someone just put you in their kill file. I wish I could, but I get Space as the digest. > I'd like some net experts to send me email if they can come up > with plausible benign explanations for this state of affairs. > Present circumstances create the appearance of a possible federal > crime. Is that supposed to be some kind of accussation, Mr. Bowery? If so, please make it explicitly. Otherwise, please stop running your mouth just to listen to the sounds that you make. [And I suggest that you check with a competent attorney before you make the decision on which of those to do. Some of us are here speaking for ourselves rather than having been elected or appointed to some position, and the laws about libel aren't the same as they are when you choose to shoot your mouth off and slander various officials.] > There is a lot in common between this government subsidized "net" > and the government funded space operations of NASA: By providing > subsidy for this communications network, bureaucrats and their > apologists can inhibit private alternatives from being capitalized > and patronized, Gee, Jim, I don't know how to break it to you but there *are* private nets. They charge you for usage and everything. > thus keeping this potentially powerful means of communication as > a forum for pork-barrel politics (as advocated by Fred McCall of > TEXAS (JSC/SSC) Instruments and the National Space Society) First of all, Mr. Bowery, you are a liar. That covers your claims about what I have "advocated" with regard to this net, which is absolutely nothing other than keeping your abusive garbage in check. And secondly, I really wish I was as important in the scheme of things as you seem to think I am. But, as would be clear to anyone of even below average intelligence from my signature, I'm here speaking as an individual. Thirdly, I'm not sure what your point is with capitalizing "TEXAS" and then putting the initials of a couple of NASA centers in parentheses behind it (and it just occurred to me after all this time of wondering that that was what you were referring to - if it is). To my knowledge we don't do any more business with NASA than any other company our size, and certainly a lot less than some who specialize in aerospace. Shall we list all the things that happen to be in the same state with you and then try to draw some equally silly insinuation from it? In point of fact, I don't think there's a NASA center within 500 miles of where I'm sitting. Texas is just a little large, Mr. Bowery. And finally, I don't know how to tell you this, Mr. Bowery, but *YOU* aren't the center of the universe you seem to think you are, either. Perhaps you need to find some unbiased third party to read over postings like your last one and then tell you honestly what it makes you sound like. You're just not important enough to rate all the attention you think you're getting from all these people, Jim. I suspect that most folks just feel like I do and wish you'd restrict your postings to the non-invective sort. > while filtering out opposing views. On the contrary, YOU seem to be the one who wants to "filter out opposing views", just as you're trying to do here via personal attack and innuendo. Everyone remember the part of my note to Mr Hopkins with regard to how all one had to do to make that 'enemies list' is to disagree with SuperJim? The one that he criticized the grammar of? You've now seen it in action. I think it's time to curb your dog, Mr. Hopkins. He's starting to foam at the mouth, and while I can't speak for everyone else, I find that I, for one, am tired of being drooled on. > As one of the coauthors of the original Plato network "notes" program > who has worked with CDC, AT&T, Knight-Ridder and others on the > establishment of entirely private communications services in competition > with "the net", I can speak with from direct experience in saying that > as long as the government persists its subsidies (most of the "private" > companies providing support are getting most of their revenue from > the government), there will be no genuine, open and viable competition > in network communications services for free expression of opinion on > public policy and those who are paid to implement it with our tax dollars. Ah, *NOW* I see the problem. All these mean folks won't recognize little Jimmy's greatness and let *him* run things! That explains all the attacks on NSS, and now on the net, too. If you want to 'discuss', Mr. Bowery, I wish you would *start*. If you just want to rave, flame, and defame, you're wasting an awful lot of peoples' time and resources. [And I'd like to apologize to everyone else for my doing the same here, but sometimes enough is just too bloody much.] > Typical RESEARCH grant: > $ > Typical DEVELOPMENT contract: > $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ Typical worth of Jim Bowery's remarks: . ============================================================================== | Fred McCall (mccall@skvax1.ti.com) | My boss doesn't agree with anything | | Military Computer Systems | I say, so I don't think the company | | Defense Systems & Electronics Group | does, either. That must mean I'm | | Texas Instruments, Inc. | stuck with any opinions stated here. | ============================================================================== ------------------------------ End of SPACE Digest V11 #148 *******************