Date: Tue, 9 Mar 93 15:27:18 From: Space Digest maintainer Reply-To: Space-request@isu.isunet.edu Subject: Space Digest V16 #293 To: Space Digest Readers Precedence: bulk Space Digest Tue, 9 Mar 93 Volume 16 : Issue 293 Today's Topics: 20 kHz Power Supplies "blowing up"! Apollo Moon Missions ? Aurora (rumors) Aurora Update Fallen Angels (2 msgs) Gaspra Animation Golden will stay at NASA says Gore on C-SPAN Gravity-NEUTRALIZING Spac Huygens will float.... (2 msgs) JPL Fact Sheet Latest on Geminga Mars Observer Update - 03/08/93 military aircraft Planetary Rovers (and intro) (lecture summary) (long) Spy Sats (Was: Are La Water resupply for SSF (?) Without a Plan Welcome to the Space Digest!! Please send your messages to "space@isu.isunet.edu", and (un)subscription requests of the form "Subscribe Space " to one of these addresses: listserv@uga (BITNET), rice::boyle (SPAN/NSInet), utadnx::utspan::rice::boyle (THENET), or space-REQUEST@isu.isunet.edu (Internet). ---------------------------------------------------------------------- Date: Tue, 9 Mar 1993 00:03:52 GMT From: Henry Spencer Subject: 20 kHz Power Supplies "blowing up"! Newsgroups: sci.space In article <8MAR199317332212@judy.uh.edu> wingo%cspara.decnet@fedex.Msfc.Nasa.Gov writes: >>... it has flown in space -- Spacelab's power system is 3-phase 400Hz AC. > >Hey Henry do you have a source for that? I would hate to find out that my >payload that I am flying on USML-2 is being designed for the wrong power bus. >From my understanding the power is 28VDC just like on the orbiter, which is >where SpaceLab's power comes from... My original source was Fortescue&Stark's "Spacecraft Systems Engineering", which I haven't found a significant error in yet. However, it did seem curious that Spacelab would use a different power system than the orbiter, so I went digging, and it turns out that we're both right. :-) The orbiter's power system is 28VDC *and* 120V-400Hz-3ph. The AC seems to be used mostly for things like motors; for example, the motors that open and close the payload-bay doors run on AC. Presumably Spacelab makes both available, and F&S mentioned the AC simply because it was the unusual one. -- C++ is the best example of second-system| Henry Spencer @ U of Toronto Zoology effect since OS/360. | henry@zoo.toronto.edu utzoo!henry ------------------------------ Date: 8 Mar 93 10:39:00 GMT From: Roland Dobbins Subject: Apollo Moon Missions ? Newsgroups: sci.space TT> TT>From: tjt@Jpl.Nasa.Gov (Tim Thompson) TT>Newsgroups: sci.space TT>Subject: Apollo Moon Missions ? TT>Date: 25 Feb 1993 01:23:36 GMT TT>Message-ID: <1mh72oINNdu8@elroy.jpl.nasa.gov> TT>Reply-To: tjt@Jpl.Nasa.Gov TT> TT> I am ignorant, I admit it. My memory has failed. Can someone ref TT>tired brain cells, and tell me (us) which Apollo mission to the Moo TT>last one? There couldn't have been too many. TT> TT> Mille Mercis TT> TT>--- TT>------------------------------------------------------------ TT>Timothy J. Thompson, Earth and Space Sciences Division, JPL. TT>Assistant Administrator, Division Science Computing Network. TT>Secretary, Los Angeles Astronomical Society. TT>Member, BOD, Mount Wilson Observatory Association. TT> TT>INTERnet/BITnet: tjt@scn1.jpl.nasa.gov TT>NSI/DECnet: jplsc8::tim TT>SCREAMnet: YO!! TIM!! TT>GPSnet: 118:10:22.85 W by 34:11:58.27 N TT> Apollo 17. I believe that Gene Cernan was the last human to walk on the surface of the Moon. Missions were planned through Apollo 21, but funding was cut due to Vietnam, etc. --- . Orator V1.13 . [Windows Qwk Reader Unregistered Evaluation Copy] ------------------------------ Date: 8 Mar 93 10:39:00 GMT From: Roland Dobbins Subject: Aurora (rumors) Newsgroups: sci.space DA> DA>From: dnadams@nyx.cs.du.edu (Dean Adams) DA>Newsgroups: sci.space DA>Subject: Re: Aurora (rumors) DA>Message-ID: <1993Mar2.123302.24462@mnemosyne.cs.du.edu> DA>Date: 2 Mar 93 12:33:02 GMT JSTARS was used quite effectively in the Gulf War . . . --- . Orator V1.13 . [Windows Qwk Reader Unregistered Evaluation Copy] ------------------------------ Date: Tue, 9 Mar 1993 01:51:56 GMT From: "Phil G. Fraering" Subject: Aurora Update Newsgroups: sci.space prb@access.digex.com (Pat) writes: >In article <1993Mar8.132419.10328@mnemosyne.cs.du.edu> dnadams@nyx.cs.du.edu (Dean Adams) writes: >| >|prb@access.digex.com (Pat) writes: >| >| >I don't think there were ever more then 12 SR-71s >| >operational, samething with U-2s. >At the same time. Sure, as you lose birds, you build more, but >For reconnaisance, you don't need that many birds. Only if you don't really have a war on. Many of the mossies in WWII that were configured for other missions ended up being used for recon at one time or another. I don't remember how many of the recon-specific version weree built. I think it was prob. in the dozens... Including it, heavy bombers doing recon, fighters sometimes used for recon, and dedicated recon plane types (i.e. specially configured for reconnaisance), and there was a lot going on. I'd be willing to bet that there were more than twelve models of dedicated reconnaisance airplanein WWII, each of which would have had larger production runs than the SR-71. -- Phil Fraering |"...drag them, kicking and screaming, pgf@srl02.cacs.usl.edu|into the Century of the Fruitbat." - Terry Pratchett, _Reaper Man_ ------------------------------ Date: 8 Mar 93 10:39:00 GMT From: Roland Dobbins Subject: Fallen Angels Newsgroups: sci.space FN> FN>From: m0102@tnc.UUCP (FRANK NEY) FN>Newsgroups: sci.space,sci.energy,rec.arts.sf.fandom FN>Subject: Fallen Angels FN>Message-ID: <2001@tnc.UUCP> FN>Date: 25 Feb 93 13:01:26 GMT FN>Reply-To: m0102@tnc.UUCP (FRANK NEY) FN>Followup-To: sci.space FN> FN>In the SF book 'Fallen Angels' by Larry Niven & others, a launch FN>vehicle named PHOENIX was described. In the afterward, it was clai FN>that such a launch vehicle (SSTO/VTOL) could be build for $50M-200M FN> FN>Anyone have information on the design of this critter? FN> FN>The story itself has much to recommend it and I would urge others t FN>read it. It describes the story of two astronauts shot down over t FN>US, after the turn of the century where the greens and the politica FN>(in-)correct have taken over. FN> FN>The astronauts are rescued and returned to their space station (usi FN>PHOENIX prototype) through the efforts of SF Fandom and the SCA. V FN>entertaining and quite thought-provoking. FN> FN>Frank Ney N4ZHG EMT-A NRA ILA GOA CCRTKBA "M-O-U-S-E" FN>Commandant and Acting President, Northern Virginia Free Militia FN>Send e-mail for an application and more information FN>---------------------------------------------------------------- FN>"Whether the authorities be invaders or merely local tyrants, the FN>effect of such [gun] laws is to place the individual at the mercy o FN>the state, unable to resist." FN> - Robert Heinlein, in a 1949 letter concerning "Red Planet" FN>-- FN>The Next Challenge - Public Access Unix in Northern Va. - Washingto FN>703-803-0391 To log in for trial and account info. _Fallen Angels_ is by Larry Niven, Jerry Pournelle, and Steven Barnes. Niven and Pournelle have done many many other books together, such as _Footfall_, _The Mote in God's Eye_, _The Gripping Hand_, etc. They also formed the Citizens' Advisory Council on National S[ace Policy, which sold Ronald Reagan on the idea of SDI. Phoenix is the brainchild of Gary Hudson, who appeared as himself in the book. He can be reaced on BIX as "ghudson". --- . Orator V1.13 . [Windows Qwk Reader Unregistered Evaluation Copy] ------------------------------ Date: Tue, 9 Mar 93 03:08:22 GMT From: Robert Patrick Campbell Subject: Fallen Angels Newsgroups: sci.space Gary Hudson is ghudson@bix.com. Anybody on bix can be reached by Internet mail this way (bixname@bix.com). ...Rob Campbell Stanford University rcampbell@bix.com 8-) ------------------------------ Date: 8 Mar 93 10:43:20 EST From: Jim Perkowski Subject: Gaspra Animation Newsgroups: sci.space,sci.astro In article <1993Mar8.040435.28445@zip.eecs.umich.edu> gilgalad@quip.eecs.umich.edu (Ralph Seguin) writes: > >taken by the Galileo spaecraft shortly before its closest approach to the > >asteroid in October 1991. The animation is in FLI format. Using anonymous > >ftp, the animation can be obtained from: > > > > ftp: ames.arc.nasa.gov (128.102.18.3) > > user: anonymous > > cd: pub/SPACE/ANIMATION > > files: > > gaspra.fli > > gaspra.txt (see below) > > Ok. Does anybody have an ANIM version of this, or an Amiga .FLI player? > .FLI datatype? > Use UnFLIT to break it into seperate IFF frames and you can turn it into any Amiga anim format you like. My problem is getting my hands on all of these neat animations. Anyone care to email these 3 gem?:) -- _______________________________________________________________________________ kentcomm!jperkski@aldhfn.akron.oh.us (and) kentcomm!jperkski@legend.akron.oh.us ------------------------------ Date: 9 Mar 93 02:27:41 GMT From: James Thomas Green Subject: Golden will stay at NASA says Gore on C-SPAN Newsgroups: sci.space I was watching C-Span this weekend and Gore was speaking at a "newsmaker's" luncheon (a buncha journalists invited him to lunch and let him speak). He was asked whether Golden would stay on at NASA and Al said that Golden would stay on "indefinitely." I guess this means Golden's job is safe for now... Does anyone have any info supporting or contradicting this? A/~~\A ((O O))___ \ / ~~~ # # # (--)\ # --#---x---x---x---x---x---#---x---x----x----x---x---#---x---x---x---x---x---#--- # James T. Green # jgreen@eros.calpoly.edu # \ # --#---x---x---x---x---x---#---x---x----x----x---x---#---x---x---x---x---x---#--- \#// \|/ \\\|||// \#/ \\\||/ \||/// \\#|// \\\\\|||/// \|/#\| O u t s t a n d i n g i n t h e f i e l d ! ------------------------------ Date: 8 Mar 93 10:39:00 GMT From: Roland Dobbins Subject: Gravity-NEUTRALIZING Spac Newsgroups: sci.space M > M >From: mcelwre@cnsvax.uwec.edu M >Newsgroups: sci.space M >Subject: Gravity-NEUTRALIZING Spacecraft M >Message-ID: <1993Mar1.172425.4516@cnsvax.uwec.edu> M >Date: 1 Mar 93 17:24:25 -0600 M > M > The ZERO/REDUCED-Gravity Chamber described below has obvious p M >applications for Chemistry, Biology, Biophysics, Biochemistry, Medi M >Research, etc., allowing experiments which now can be done ONLY on M >Shuttle, AT GREAT EXPENSE! M > M > M > Gravity-NEUTRALIZING Air/Spacecraft M > or ZERO/REDUCED-Gravity Chamber M > M > NASA should build an experimental spacecraft based o M > U.S. Patent #3,626,605 [at least $3.00 per complete copy M > U.S. Patent Office, 2021 Jefferson Davis Hwy., Arlington, M > 22202; correct 7-digit patent number required. Or try ge M > it via your local public or university library's inter-li M > loan dept..], titled "METHOD AND APPARATUS FOR GENERATING M > SECONDARY GRAVITATIONAL FORCE FIELD", awarded to Inventor M > Henry W. Wallace on Dec. 14, 1971. M > M > In the patent, Figs. 7A and 7B are basically side vi M > of a gravity-NEUTRALIZING FLYING SAUCER, or, if anchored M > the ground, a ZERO-GRAVITY CHAMBER [which could have MANY M > possible GROUND-level applications for science, medicine, M > manufacturing, etc.]. Each oval diagram shows a motor M > spinning a central disc at a very high speed, about 28,00 M > RPM, and also rotating two other discs sandwiched around M > first disc, via gears, at a much slower speed, perhaps 2, M > RPM, in the opposite direction. The two outer discs have M > extensions [counter-balanced via off-center axis] that, a M > they rotate, alternately make contact with two wide M > extensions from opposite walls of the spacecraft. The M > central disc should have shallow spiral-shaped grooves on M > both sides for air-bearings, to allow the needed very clo M > contact with the two outer discs. M > M > I should clarify that each of the two outer discs ha M > ONLY ONE [counter-balanced] extension, each one pointed M > opposite (180 degrees) the extension of the other disc. M > M > VERY CLOSE CONTACT must be made as the disc extensio M > slide past the wall extensions in order to conduct the M > "Kinemassic" Energy (term coined by the Inventor) from th M > discs to the walls in an ALTERNATING CIRCULATION. M > M > The most important factor making it work is that the M > discs, extensions, and outer walls of the spacecraft MUST M > made of any material(s) in which a very large majority of M > atoms are of isotopes having "half integral atomic spin", M > such as copper (3/2). All other parts, etc., should have M > minority of such atoms. [See the appropriate column of t M > table of isotopes in the latest edition of "The Handbook M > Chemistry and Physics."] M > M > Experimenters should use one motor to spin the cente M > disc, and a 2ND SEPARATE motor to rotate the two outer di M > so their relative speeds can be varied to establish the M > needed conditions for PROPULSION of the spacecraft via M > "NEGATIVE WEIGHT" (with the spacecraft's "Kinemassic" fie M > PUSHING AGAINST the earth's gravitational field, etc.). M > M > M > If we have to put up a space station, establish Moon M > bases, go to Mars, rendezvous with comets, etc., WHY DO I M > THE HARD WAY?! M > M > Your favorite university or research company could m M > a big name for itself by making a small model of this wor M > M > M > UN-altered REPRODUCTION and DISSEMINATION of this M > IMPORTANT Information is ENCOURAGED. M > M > M > Robert E. McElwaine M > B.S., Physics and Astronomy M > M > That's nuts . . . --- . Orator V1.13 . [Windows Qwk Reader Unregistered Evaluation Copy] ------------------------------ Date: 9 Mar 1993 01:10 UT From: Ron Baalke Subject: Huygens will float.... Newsgroups: sci.space,alt.sci.planetary Huygens, the atmospheric probe that will parachute to the surface of Titan, is designed to float if it lands in a liquid medium. The chances of the probe surviving any landing is not guaranteed, but it is particularly good if it does land in a liquid. Particular care is being taken such if the probe does do a liquid landing, the probe would float deep enough such that the refractive index sensor would be fully immersed, but high enough so that the Descent Imager/Specral radiometer is above the waterline. Soure: Ralph Lorenz, formerly at ESTEC on the Huygens payload engineering. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 525-3684 Telos | It's kind of fun to do /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | the impossible. |_____|/ |_|/ |_____|/ | Walt Disney ------------------------------ Date: Tue, 9 Mar 1993 02:42:00 GMT From: Josh Hopkins Subject: Huygens will float.... Newsgroups: sci.space,alt.sci.planetary baalke@kelvin.jpl.nasa.gov (Ron Baalke) writes: > Particular care is >being taken such if the probe does do a liquid landing, the probe >would float deep enough such that the refractive index sensor would >be fully immersed, but high enough so that the Descent Imager/Specral >radiometer is above the waterline. >Soure: Ralph Lorenz, formerly at ESTEC on the Huygens payload engineering. Thanks Ron. The fact that the engineers are trying to do this means that they think they know the density of Titan's seas to some degree. Can someone explain where this data comes from and how accurate it is expected to be? -- Josh Hopkins jbh55289@uxa.cso.uiuc.edu You only live once. But if you live it right, once is enough. In memoria, WDH ------------------------------ Date: Tue, 9 Mar 1993 02:56:36 GMT From: Dave Michelson Subject: JPL Fact Sheet Newsgroups: sci.space,sci.astro,alt.sci.planetary In article <8MAR199323555554@kelvin.jpl.nasa.gov> baalke@kelvin.jpl.nasa.gov (Ron Baalke) writes: >----------------------------------------------------------------- >FACT SHEET: THE JET PROPULSION LABORATORY > March 1993 > >planet when it was launched August 27, 1962, to Venus (Mariner 1 >was lost because of a launch vehicle error). Other successful >Mariners included Mariner 4, launched in 1964 to Mars; Mariner >5, launched in 1967 to Venus; Mariner 6, launched in 1969 to >Mars; Mariner 7, launched in 1969 to Mars; Mariner 8 and 9, >launched in 1971 to orbit Mars. Interesting summary, but I would hardly classify Mariner 8 as a "successful Mariner" :-( --- Dave Michelson University of British Columbia davem@ee.ubc.ca Antenna Laboratory ------------------------------ Date: 9 Mar 93 01:56:47 GMT From: "Richard M. Mathews" Subject: Latest on Geminga Newsgroups: sci.space,sci.astro gawne@stsci.edu writes: >Italian astronomers at the >Universities of Milan and Cassino have now reanalyzed optical images >recorded over the period 1984-92 and have determined that Geminga >moves across the sky at a rate of 0.17 arcsec/year and that its >distance from Earth is about 300 light years (G.F. Bignami et al., >Nature 25 Feb. 1993.) What are the error ranges on these proper motion and distance numbers? Richard M. Mathews D efend E stonian-Latvian-Lithuanian Richard.Mathews@West.Sun.COM I ndependence ------------------------------ Date: 9 Mar 1993 00:55 UT From: Ron Baalke Subject: Mars Observer Update - 03/08/93 Newsgroups: sci.space,sci.astro,alt.sci.planetary Forwarded from the Mars Observer Project MARS OBSERVER STATUS REPORT March 8, 1993 4:00 PM PST Flight sequence C7 B is active through shortly before 8:00 AM, Thursday March 18. Activation of C8 containing TCM-3 (Trajectory Correction Maneuver #3) occurs at 8:00 AM, also on March 18. The TCM-3 maneuver itself occurs at 2:00 PM that afternoon. The Flight Team reports that spacecraft subsystems and the instrument payload are performing nominally. The spacecraft is in Array Normal Spin in outer cruise configuration, with uplink and downlink via the High Gain Antenna; uplink at 125 bps, downlink at the 4 K Science and Engineering data rate. The Gamma Ray Spectrometer is taking calibration data through Friday, March 12 at 10:00 AM. Activities this week include a Radio Science Tracking System Calibration Test from 6:10 PM through 8:10 PM this evening. The Launch + 166 Days Star Catalog & Ephemeris Use Uplink Window opens at 5:00 PM tomorrow and extends through 5:00 AM on Thursday. The GDS (Ground Data Systems) Test Readiness Review for Encounter will take place on March 11 from 8:00 AM to 4:00 PM in the JPL Main Cafeteria Conference area. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 525-3684 Telos | It's kind of fun to do /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | the impossible. |_____|/ |_|/ |_____|/ | Walt Disney ------------------------------ Date: 8 Mar 93 10:39:00 GMT From: Roland Dobbins Subject: military aircraft Newsgroups: sci.space MC> MC>Newsgroups: sci.space MC>From: merle@a.cs.okstate.edu (MERLE CHRISTOPHER) MC>Subject: Re: military aircraft MC>Message-ID: <1993Mar1.221452.4021@a.cs.okstate.edu> MC>Date: Mon, 1 Mar 93 22:14:52 GMT MC> MC>In article <76487@cup.portal.com> BrianT@cup.portal.com (Brian Stua MC>>>The A-12 was intended to replace the aging A-6. It ran into MC>>>management problems, overran budget, and has been cancelled. Aur MC>>>is the (rumoured only) replacement for the SR-71 Recce aircraft, MC>>>has (once again, rumoured only) reportedly been flying for a numb MC>>>years now. MC>> MC>> The writer probably confused "Aurora" and "Avenger". However, MC>> not sure that the A-12 Avenger II was even supersonic, much le MC>> designed for Mach 4. MC>> MC> MC>Historical Tidbit: The first plane to receive the designation A-12 MC>the precursor to the SR-71. the A-12 was operated by the CIA. MC> MC>As for rumoured replacement. The SR-71, the A-12, the F117A were se MC>many years before they went public. So it is reasonable to assume t MC>the USA has a replacement. After all the original designs for the MC>dated from the late 40's. You decide. MC> MC>Yours in Paranoia MC>Chris MC> MC> MC>-- MC>------------------------------------------------------------------- MC> Christopher Merle | "As God as my witness, I thought tur MC> merle@a.cs.okstate.edu | could fly." --Art Carlson MC>------------------------------------------------------------------- Er . . . the original SR-71 designs aren't from the 1940s, I think. Kelly Johnson built the SR-71 during 1961-1962 at the Lockheed Skunkworks, if I'm not mistaken . . . --- . Orator V1.13 . [Windows Qwk Reader Unregistered Evaluation Copy] ------------------------------ Date: 9 Mar 1993 00:34 UT From: Ron Baalke Subject: Planetary Rovers (and intro) (lecture summary) (long) Newsgroups: sci.space In article , tombaker@world.std.com (Tom A Baker) writes... >The Viking probes sent back fairly boring pictures because we >landed them on boring but safe places - we couldn't afford to >lose them by, for example, landing in high wind area. Boring? The Viking Lander images were *spectacular*. Safe locations were chosen for the Viking landing sites. You normally want the spacecraft to survive the landing. >These uses might be impractical on a large, >less mobile robot like JPL's Robbie from the 1970's - a big slow >machine, moving only 1 inch/hour. Your facts are a bit off about Robby. Robby is an autonomous JPL rover of the 1990's. It is about the size of a car, but much smaller than something like Ambler. A couple of years ago in a test run in a dry riverbed, it covered over 100 meters in 4 hours 20 minutes, which comes out to about 1.25 feet/minute. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 525-3684 Telos | It's kind of fun to do /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | the impossible. |_____|/ |_|/ |_____|/ | Walt Disney ------------------------------ Date: 8 Mar 93 10:39:00 GMT From: Roland Dobbins Subject: Spy Sats (Was: Are La Newsgroups: sci.space DA> DA>Newsgroups: sci.space DA>From: dnadams@nyx.cs.du.edu (Dean Adams) DA>Subject: Re: Spy Sats (Was: Are La DA>Message-ID: <1993Mar3.140247.16201@mnemosyne.cs.du.edu> DA>Date: Wed, 3 Mar 93 14:02:47 GMT DA> DA>roland.dobbins@the-matrix.com (Roland Dobbins) keeps writing: DA>>Date: 2 Mar 93 08:44:00 GMT DA> DA> >DA>involved. KH-11 orbits are not all that much higher than the DA> >DA>would make an intercept pretty tight, and besides the optics a DA> >KH-11 is neither the latest nor the greatest "real-time" platform DA> DA>roland.dobbins@the-matrix.com (Roland Dobbins) keeps writing: DA>>Date: 2 Mar 93 08:44:00 GMT DA> DA> >>>KH-11 is neither the latest nor the greatest "real-time" platfo DA> >DA>The ADVANCED KH-11 is... we currently have 2-3 of them up. DA> >DA>OR, are you talking about Lacrosse or Aurora? DA> DA> >Yes, among others . . . DA> >Although those two are primarily ELINT/SIGINT. DA> DA>NO, they aren't... and WHY do you keep reposting these same message DA>over again every day? How many replies do you want? This is about DA>the forth or fifth time I have seen it. What is the problem?? DA> A. If they aren't, I am, of course, mistaken. B. My blinker was broken. I _think_ it's fixed now. --- . Orator V1.13 . [Windows Qwk Reader Unregistered Evaluation Copy] ------------------------------ Date: Tue, 9 Mar 1993 01:43:39 GMT From: "Phil G. Fraering" Subject: Water resupply for SSF (?) Newsgroups: sci.space szabo@techbook.com (Nick Szabo) writes: >Likewise, there is no necessity to follow your pilot-plant >development plan so strictly. Oil companies every year drill >through miles of rock, gravel, mud, permafrost, ice, etc. that >they haven't mapped out in detail beforehand. Similarly ... 1. I think they do map the geography well beforehand; you'd be suprised what they know. 2. They don't drill in this country much anymore... -- Phil Fraering |"...drag them, kicking and screaming, pgf@srl02.cacs.usl.edu|into the Century of the Fruitbat." - Terry Pratchett, _Reaper Man_ ------------------------------ Date: 9 Mar 1993 04:16:48 GMT From: Shari L Brooks Subject: Without a Plan Newsgroups: sci.space I just wanted to say that this was the absolutely without a doubt the *best* post I have ever seen by Dennis. Bravo, Dennis, I agree 1000%. -- If you blow fire against the wind, take care to not get the smoke in your eyes. Big & Growly Dragon-monster | bafta@cats.ucsc.edu --------> shari brooks <-------- | brooks@anarchy.arc.nasa.gov The above opinions are solely my own. ------------------------------ End of Space Digest Volume 16 : Issue 293 ------------------------------