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 ; Wed, 23 May 90 02:15:30 -0400 (EDT) Message-ID: Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Wed, 23 May 90 02:14:55 -0400 (EDT) Subject: SPACE Digest V11 #442 SPACE Digest Volume 11 : Issue 442 Today's Topics: Payload Status for 05/22/90 (Forwarded) wooden ships NASA Headline News for 05/21/90 (Forwarded) re: Space List - a few more things space enthusiasts might like Re: Manned Mission To Venus EXPLORATORY CREWS Vatican vs. Science ---------------------------------------------------------------------- Date: 22 May 90 23:41:22 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Subject: Payload Status for 05/22/90 (Forwarded) Daily Status/KSC Payload Management and Operations 05-22-90. - STS-31R HST (at VPF) - Post launch GSE removal continues. - STS-35 ASTRO-1/BBXRT (at Pad A) - No payload activities are scheduled for today. - STS-40 SLS-1 (at 0&C) - CITE MUE and S/W verifications are to performed today to support CITE testing. Power up IPR troubleshooting will continue today. - STS-41 Ulysses (at ESA 60) - PAM-S spin balance operations will continue today at ESA 60. - STS-42 IML-1 (at O&C) - Module pyrell foam replacement, floor staging, and rack staging continues. - STS-45 (Atlas-1) (at O&C) - VAS and coldplate installations will continue today. - STS-46 TSS-1 (at O&C) - No activities are scheduled for today. - STS-47 Spacelab-J (at O&C) No work is scheduled for today. - STS-55 SL-D2 (at O&C) - Rack 12 staging will continue today. - STS-LON-3 HST M&R (at O&C) - ORUC interface testing is scheduled for today. ------------------------------ Date: 22 May 90 04:15:49 GMT From: attcan!utgpu!utzoo!henry@uunet.uu.net (Henry Spencer) Subject: wooden ships In article <1990May21.155840.6288@cs.wayne.edu> pbh@pandora.cs.wayne.edu (Patrick B. Haggood) writes: >Besides, Magellan didn;t have to throw his boat away after the trip (yeah, >I know he died, I'm trying to make a point!) :-) It wasn't uncommon for wooden ships to last only one major voyage, or for that matter for an expedition to come back with fewer ships than it started with, because of things like shipworm. -- Life is too short to spend | Henry Spencer at U of Toronto Zoology debugging Intel parts. -Van J.| uunet!attcan!utzoo!henry henry@zoo.toronto.edu ------------------------------ Date: 22 May 90 23:29:13 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Subject: NASA Headline News for 05/21/90 (Forwarded) ----------------------------------------------------------------- Monday, May 21, 1990 Audio Service: 202/755-1788 ----------------------------------------------------------------- This is NASA Headline News for Monday, May 21........ The Hubble Space Telescope's Wide Field/Planetary Camera shutter opened at 11:12 A.M. EDT, Sunday, to take the first test pictures. Operators were anticipating the quality of the pictures to equal those taken from a ground-based telescope. Compared to pictures of the star field taken by a ground-based telescope, it looks like the Hubble is working at least two times better than expected at this time. A media briefing on Sunday at Goddard Space Flight Center provided real-time information on how the images were obtained and captured on the ground. The first images showed a double star. Pictures of the same image taken by the ground-based telescope appeared as a single elongated dot. The telescope's wide-field camera team leader Dr. James Westphal said, "we've already learned something we didn't know and that's fun!" ******** Aviation Week reports the White House and OMB are holding firm on NASA's $15.1-billion budget request for FY '91. In talks with congressional leaders, OMB Director Richard G. Darman is trying to place NASA's 24% budget increase for next year "off limits" from the Gramm-Rudman deficit cuts under negotiation, according to the magazine. The article says the White House and OMB believe cuts in aerospace technology spending should come from the Defense Department, not NASA. ******** Administrator Richard Truly will participate in a Department of Energy press briefing tomorrow, May 22. An action plan to revitalize math and science education will be announced. The cooperative NASA and Department of Energy enterprise will target opportunities to improve literacy in the general public, bring greater numbers of women and minorities into science and technology. ******** Pictures brought back from the Soviet Soyuz manned transport docked to the Mir space station show insulation damage, according to Aviation Week. An editor reports seeing tears in the insulation blankets that may have happened during launch last February. The vehicle's metallic skin has been exposed to the space vacuum, seriously effecting the spacecraft's temperature control. Soviet managers are deciding whether to move the Soyuz for an external repair. ******** ---------------------------------------------------------------- Here's the broadcast schedule for Public Affairs events on NASA Select TV. All times are Eastern. Monday, May 21............... 12:00 Noon Hubble Space Telescope News Briefing. Replay of first pictures received Sunday, May 20. Tuesday, May 22.............. 12:00-2:00 P.M. NASA PRODUCTIONS Hubble Space Telescope Earth Fest '90 C.A.S.I.S. Workshop (Center of Atmospheric and Space Information Sciences) Thursday, May 24............. 11:30 A.M. NASA UPDATE will be transmitted All events and times are subject to change without notice. These reports are filed daily, Monday through Friday, at 12:00 Noon, EDT. This is a service of the Internal Communications Branch, NASA HQ. Contact: JSTANHOPE on NASAMAIL or at 202/453-8425. ----------------------------------------------------------------- NASA Select TV: Satcom F2R, Transponder 13, C-Band 72 Degrees West Longitude, Audio 6.8, Frequency 3960 MHz. ----------------------------------------------------------------- ------------------------------ Date: 22 May 90 02:05:59 GMT From: att!cbnewsd!dcn@ucbvax.Berkeley.EDU (david.c.newkirk) Subject: re: Space List - a few more things space enthusiasts might like A few more numbers and equations relevant to space exploration... Numbers: 3.08 e13 km parsec 9.46 e12 km light year 0.46 km/s Speed of Earth's rotation at equator 3.0 e8 m/s Speed of light in a vacuum Equations: Escape velocity is the critical speed you need to achieve orbit: sqrt(g R) or sqrt(2 G M / R) Eccentricity is a measure of how circular an orbit is: e = (apogee - perigee) / 2 r, where r is the average orbital radius. The famous delta-v equation for how much velocity you get for burning a portion of fuel is: Dv = Ve LOGe(Mi / Mf), where Ve is the exhaust velocity, Mi is the initial mass, Mf is the final mass This can also be expressed by replacing Ve by g * Isp, where Isp is the specific impulse of the fuel. Here is a different form of the delta-v equation: Dv = Ve LOG(t0 / (t0 - t)), where t0 is the time when all the fuel will be exhausted, and t is the start time. This give the displacement of a constantly accelerating rocket: d = c^2 / a COSH(at/c - 1), where a is acceleration, t is the subjective time, c is speed of light With long time spans and/or high accelerations, this demonstrates special relativity in action. [ Note that COSH(x) = (e^x + e^-x)/2 ] The thrust of a rocket engine can be approximated by: 2 A (p - p0), where A is the minimum nozzle area, p is the chamber pressure, p0 is the pressure outside the engine Or by: Ve * F, where F is the rate of fuel use -- Dave Newkirk, att!ihlpm!dcn ------------------------------ Date: 22 May 90 15:34:01 GMT From: usc!samsung!rex!rouge!dlbres10@ucsd.edu (Fraering Philip) Subject: Re: Manned Mission To Venus In article <9005112335.AA20893@ti.com> mccall@skvax1.csc.ti.com writes: [stuff about privacy on sailing ships and naval vessels deleted] Actually, the case closest to the spaceship is the nuclear submarine. It is not only more crowded than a frigate, but you can't step out on deck for a short walk or even have 'liberty at sea' and go swimming... However, I have never heard of nuclear submariners having to be carried off of the submarine in stretchers due to decalcification and atrophied muscles. The Soviet cosmonauts who set the current records of around 9 months to a year have. I suggest that we use a _very_ fast trajectory spacecraft in conjunction with unmanned fuel depots supplied by either solar sails or electric rockets on slow trajectories, or even by indigenous materials. The idea has been suggested before, but I don't know where. Philip Fraering dlbres10@pc.usl.edu "Surely the gate to Eden must be nearby." Columbus, exploring the mouth of the Orinoco River. ------------------------------ Date: 22 May 90 16:56:15 GMT From: m2c!wpi!horshac@husc6.harvard.edu (Matthew J Rosenwasser) Subject: EXPLORATORY CREWS Does the quote "The needs of the many outweigh the needs of the few" stand in exploratory missions to the outer planets of the solar system? I mean, should there be people on board who can be ordered to sacrifice their life in ordered to ensure the lives of the others on board? ------------------------------ Date: 22 May 90 00:24:47 GMT From: snorkelwacker!usc!srhqla!quad1!ttidca!sorgatz%ttidcb.tti.com@bloom-beacon.mit.edu (Erik Sorgatz - Avatar) Subject: Vatican vs. Science First an apology: To everyone for having wasted the bandwidth of this group to settle an issue such as this. Any firther discussion about this matter is directed to email. Second, it seems that there are a number of you out-there that support the use of Occam's Razor in dealing with such nonsense; my thanks for your nice responses about this issue. ------------------------------------------------------------------------- >From: SYSTCH%ALBNYVM1@UACSC2.ALBANY.EDU (Thomas Hoey) >In reference to Erik K. Sorgatz recent attack on the Vatican I find it >silly that he does not take his argument to another list, how about >Fraud in science? His first postings on this issue bothered me but I >did not find that they warranted a reply. Today however when I see that >Mr.Sorgatz is connected with Citicorp TTI I am responding. As a stock >holder and former Officer of Citicorp I do not understand what Mr.Sorgatz >is trying to accomplish on this subject, and I intend to write to the >board of directors on this matter. Since there is no disclaimer under >his postings I am sure Citicorp public relations will not be ammused >by his ramblings... Mr. Hoey: If you persist in your avowed course of action you will find that this has already been tried, not once, but several times by the likes of persons such as yourself. My rights to commentary here on subjects such as this are all covered by the United States Constitution and in particular by the Freedom of Speech provisions under the Bill of Rights. Everything that is carried by Usenet is considered to be personal opinion, unless an individual explicitly states otherwise. Hence, My opinions are in no way connected with the Corp., it's policies, or it's official position. Your attempt to censor me in this manner is most childish, and my lawyer tells me that that we could make a great deal out of this in a court of law if you so desire...feel lucky? There are already three people that have had this done to them, would you like to make it four?! The fact that you, personally, are offended by my statements does not give you the right to harass me (or anyone else) through the Public Relations Office. It is in fact unlawful to do so! YOU HAVE BEEN WARNED! If you would care to debate the actually issues, then you may do so via email, since I refuse to continue this here in 'sci.space'. >From: davidbrierley@lynx.northeastern.edu + In SPACE Digest V11 #422 Mr. Erik K. Sorgatz made various comments +against the Catholic Church. He said that the Church was completely +opposed to space exploration, without citing any documents. Go read some major newspapers from the 1955-1979 timeframe. The Church has been opposed to the exploration of space since the earliest times. + Granted the Church has had a terrible history - but does that mean it +is impossible for the Church to do some good now or in the future? As far Just like that? A hand-wave? No, I don't think you understand the basis of the argument. Reread what I wrote. We're talking about money, power and the ability to control society. You seem to want to ignore this, why? +as suggesting that science has not tarnished itself with unethical acts we +can take a look at a few historical examples of misdeeds in science. +Most people know of the medical experiments conducted in the concentration +camps of World War II. Some people would say that some useful knowledge ++might have come from it, but few would say that the experiments were +ethical. Nuclear weapons did provide useful gains in physics, but this None of this is really science. You are referring to the torture of human beings by human-monsters. This does not reflect well for any of those that were involved, but I would not consider this a mark against anyone but the Nazi's and those that allowed them to operate. Torture unto death is one of the things that the Church used to do quite often, read some History.. ..check out the Inquisition, really a saintly crew, eh? +knowledge did not necessarily mandate that bombs bshould be used on cities. +Obviously political conditions are a factor but in the end scientists must +accept some responsibility for their work. Scientists can be corrupt, just ++as anybody else can (including the Church). The ends do not justify the +means. + Here we agree. Noone involved in the Manhatten Project wanted the bomb used on human beings. They signed a petition to that effect. The War Dept. and the Prez ignored it. Who's fault is this? + But if you don't want the Church to be involved in astronomy just +write letters to Congress. Just be sure to send a check to an organization +that builds telescopes so that we'll have the same number of telescopes, +just in case. + Personally, I couldn't care less if the Church were to decide to open a a hot-dog stand on Venus, the point I'm making is that the past performance and the current anti-birth control stances of the Vatican, along with the amount of money the Pope controls, make it worth everyones while that we do not forget the history of this organization and that we watch what they do very carefully! The Church would like everyone to forget their torture & theft days, they would like to pretend to have always been a humanitarian operation..this is patently absurd. History is history. I'll be impressed with their having turned over a new leaf when they stop bitching about the welfare of the poor and actually do something about it; like sell off some of their lands and provide for the unfortunates, instead of insisting that governments should be doing this work INSTEAD of sponsoring space research. + As far as accusing me of being anti-scientific, well, I'm graduating +in June with Bachelor of Science degrees in chemistry and geology - along +with over 15 months of full-time co-op work as a chemist. And BTW, just ++because I am a Catholic doesn't mean that I agree with everything the +Church says. + + David R. Brierley Very good Mr. Brierley, now comes the difficult part: Your mission is to escape the social bounds of your native faith, and it's narrow view. As an aside I'd recommend you read some of the commentary that targets the Vatican and the nonsense that is it's dogma. Get out, get some air! BREATHE FREE! (and good luck on your career!) ------------------------------------------------------------------------- ------------------------------ End of SPACE Digest V11 #442 *******************