Date: Mon, 26 Apr 93 05:30:20 From: Space Digest maintainer Reply-To: Space-request@isu.isunet.edu Subject: Space Digest V16 #488 To: Space Digest Readers Precedence: bulk Space Digest Mon, 26 Apr 93 Volume 16 : Issue 488 Today's Topics: Drag free satellites (was: Stephen Hawking Tours JPL) How can you see the launch of the Space Shuttle ? How many read sci.space? Level 5? PLANETS STILL: IMAGES ORBIT BY ETHER TWIST Space Station Redesign, JSC Alternative #4 Sunrise/ sunset times TRUE "GLOBE", Who makes it? Vandalizing the sky. 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: 25 Apr 1993 11:46:42 -0400 From: Pat Subject: Drag free satellites (was: Stephen Hawking Tours JPL) Newsgroups: sci.space Joe, your description sounds like one of the gravity probe spacecraft ideas. pat ------------------------------ Date: Sun, 25 Apr 1993 03:19:40 GMT From: CHA WONG Subject: How can you see the launch of the Space Shuttle ? Newsgroups: sci.space Sorry for asking a question that's not entirely based on the technical aspects of space, but I couldn't find the answer on the FAQs ! I'm currently in the UK, which makes seeing a Space Shuttle launch a little difficult..... However, I have been selected to be an exchange student at Louisiana State Uni. from August, and I am absolutely determined to get to see a Space Shuttle launch sometime during the year at which I will be in America. I hear there's a bit of a long mailing list, so if someone can tell me how to get tickets and where to get them from, then please E-mail me ! Thanks very much for your patience.... (And if anyone else wants to know, tell me and I'll summarize for you - just to save all those poor people who have to pay for their links !) -- =============================== April is the cruellest month Andrew Wong \ Mixing memory and desire -----x----- \ E-mail:C.H.A.Wong@bradford.ac.uk \ T.S.Eliot - The Wasteland 1918 ------------------------------ Date: 25 Apr 1993 11:48:36 -0400 From: Pat Subject: How many read sci.space? Newsgroups: sci.space In article <1993Apr22.184650.4833@mksol.dseg.ti.com> mccall@mksol.dseg.ti.com (fred j mccall 575-3539) writes: >isn't my real name, either. I'm actually Elvis. Or maybe a lemur; I >sometimes have difficulty telling which is which. definitely a lemur. Elvis couldn't spell, just listen to any of his songs. pat ------------------------------ Date: Sat, 24 Apr 1993 23:28:58 GMT From: Henry Spencer Subject: Level 5? Newsgroups: sci.space In article <1raejd$bf4@access.digex.net> prb@access.digex.com (Pat) writes: >what ever happened to the hypothesis that the shuttle flight software >was a major factor in the loss of 51-L. to wit, that during the >wind shear event, the Flight control software indicated a series >of very violent engine movements that shocked and set upa harmonic >resonance leading to an overstress of the struts. This sounds like another of Ali AbuTaha's 57 different "real causes" of the Challenger accident. As far as I know, there has never been the slightest shred of evidence for a "harmonic resonance" having occurred. The windshear-induced maneuvering probably *did* contribute to opening up the leak path in the SRB joint again -- it seems to have sealed itself after the puffs of smoke during liftoff -- but the existing explanation of this and related events seems to account for the evidence adequately. -- SVR4 resembles a high-speed collision | Henry Spencer @ U of Toronto Zoology between SVR3 and SunOS. - Dick Dunn | henry@zoo.toronto.edu utzoo!henry ------------------------------ Date: 25 Apr 93 00:02:34 GMT+12 From: Ross Smith Subject: PLANETS STILL: IMAGES ORBIT BY ETHER TWIST Newsgroups: sci.space,sci.astro,alt.aci.planetary,alt.astrology In article <1993Apr22.213815.12288@mksol.dseg.ti.com> mccall@mksol.dseg.ti.com (fred j mccall 575-3539) writes: >In <1993Apr22.130923.115397@zeus.calpoly.edu> dmcaloon@tuba.calpoly.edu (David McAloon) writes: > >> ETHER IMPLODES 2 EARTH CORE, IS GRAVITY!!! > >If not for the lack of extraneously capitalized words, I'd swear that >McElwaine had changed his name and moved to Cal Poly. I also find the >choice of newsgroups 'interesting'. Perhaps someone should tell this >guy that 'sci.astro' doesn't stand for 'astrology'? > >It's truly frightening that posts like this are originating at what >are ostensibly centers of higher learning in this country. Small >wonder that the rest of the world thinks we're all nuts and that we >have the problems that we do. > >[In case you haven't gotten it yet, David, I don't think this was >quite appropriate for a posting to 'sci' groups.] Was that post for real? I thought it was a late April Fool joke. Some of it seemed a bit over the top even by McElwaine/Abian/etc standards :-) -- ... Ross Smith (Wanganui, NZ) ............ alien@acheron.amigans.gen.nz ... "And crawling on the planet's face Some insects called the human race Lost in time and lost in space" (RHPS) ------------------------------ Date: Sat, 24 Apr 1993 23:17:07 GMT From: Henry Spencer Subject: Space Station Redesign, JSC Alternative #4 Newsgroups: sci.space In article <23APR199317452695@tm0006.lerc.nasa.gov> dbm0000@tm0006.lerc.nasa.gov (David B. Mckissock) writes: > - Man-Tended Capability (Griffin has not yet adopted non-sexist > language) ... Glad to see Griffin is spending his time on engineering rather than on ritual purification of the language. Pity he got stuck with the turkey rather than one of the sensible options. -- SVR4 resembles a high-speed collision | Henry Spencer @ U of Toronto Zoology between SVR3 and SunOS. - Dick Dunn | henry@zoo.toronto.edu utzoo!henry ------------------------------ Date: 25 Apr 1993 11:52:06 -0400 From: Pat Subject: Sunrise/ sunset times Newsgroups: sci.misc,sci.math,sci.space In article <1r6f3a$2ai@news.umbc.edu> rouben@math9.math.umbc.edu (Rouben Rostamian) writes: >how the length of the daylight varies with the time of the year. >Experiment with various choices of latitudes and tilt angles. >Compare the behavior of the function at locations above and below >the arctic circle. If you want to have some fun. Plug the basic formulas into Lotus. Use the spreadsheet auto re-calc, and graphing functions to produce bar graphs based on latitude, tilt and hours of day light avg. pat ------------------------------ Date: 25 Apr 93 20:07:52 GMT From: Bill Vance Subject: TRUE "GLOBE", Who makes it? Newsgroups: sci.astro,sci.space It has been known for quite a while that the earth is actually more pear shaped than globular/spherical. Does anyone make a "globe" that is accurate as to actual shape, landmass configuration/Long/Lat lines etc.? Thanks in advance. -- bill@xpresso.UUCP (Bill Vance), Bothell, WA rwing!xpresso!bill You listen when I xpresso, I listen When uuxpresso.......:-) ------------------------------ Date: 23 Apr 93 15:41:05 GMT From: Dani Eder Subject: Vandalizing the sky. Newsgroups: sci.astro,sci.space Re: Space billboards Even easier to implement than writing messages on the Moon, once upon a time a group of space activists I belonged to in Seattle considered a "Goodyear Blimp in orbit". The idea was to use a large structure that could carry an array of lights like the Goodyear Blimp has. Placed in a low Earth orbit of high inclination, it could eventually be seen by almost everyone on Earth. Only our collective disapproval of cluttering up space with such a thing stopped us from pursuing it. It had quite feasible economics, which I will not post here because I don't want to encourage the idea (if you want to do such a thing, go figure it out for yourself). Dani Eder -- Dani Eder/Meridian Investment Company/(205)464-2697(w)/232-7467(h)/ Rt.1, Box 188-2, Athens AL 35611/Location: 34deg 37' N 86deg 43' W +100m alt. ------------------------------ End of Space Digest Volume 16 : Issue 488 ------------------------------