HDTenEightyP/NetNews huggingface dataset:
From: lemon@unssun.nevada.edu (Captain Caveman!!)
Newsgroups: sci.space.shuttle
Subject: Re: Shuttle bad for the environment?
Date: 16 Apr 92 00:42:56 GMT
Reply-To: lemon@unssun.UUCP (Captain Caveman!!)
Organization: University of Nevada-Reno

In article <kuk60aINN1vg@girtab.usc.edu> efranqui@girtab.usc.edu (Eduardo Franqui) writes:
>
>My question is in response to a one paragraph article in the latest Newsweek
>magazine.  I unfortunately do not have the copy any longer and I am incapable
>of remembering what it exactly stated, however it stated that the Space Shuttle
>was environmentally damaging due to the release of ozone damaging material 
>during its takeoff.  Of course whatever fuel it uses can not be environmentally
>safe, but the magazine would not go out of its way to mention the obvious
>unless they believed the situation to be worse than believed.  If anyone has a
>copy of Newsweek, I believe it was the "Sex Psychotherapy" issue, look in the
>begining pages where small unsigned paragraphs appear with some pictures to
>look at.  I only wish I had my copy!!!  I want toknow more and see how true 
>the article is. 


I saw this too.  I don't have much to offer on the specifics of what it said
about what chemicals etc (they listed a few specifically), but i do have
one thing to say:

I find it very interesting how this little "blurb" was accompanied by a
1.5" X 2.5" or so picture of the shuttle launching.  Of course, this
wonderful photo captured the billowing clouds of what I understand to be
steam.  Please correct me if I'm wrong.  Thing is:  It's steam, but they
show that picture with a blurb on the dagerous ozone-depleting chemicals,
and I wonder:  you think people might be mislead into thinking that all
those billowing clouds are some sort of evil, ozone-killing, chemical-filled
clouds of smoke?  I mean, sure, some of it is smoke i'm sure, but isn't
the majority of it simply steam from the water being vaporized by the
engine exhaust?  'Tis what I thought.

Another example of our fine media....
			--John
      John A. LeMon           "Good my Lord, put your discourse in some frame  
     U. Nevada, Reno              and start not so wildly from my affair."     
       "Wolf Pack"                             --Shakespeare              
 lemon@unssun.nevada.edu        YAFer@GooLand, YAMud Version 2745237571989.1
From: dietz@cs.rochester.edu (Paul Dietz)
Newsgroups: sci.space.shuttle
Subject: Re: Single SRB Ignition
Summary: Reality check...
Date: 14 Apr 92 14:50:04 GMT
Organization: Computer Science Department University of Rochester

In article <1992Apr13.185838.12280@sierra.com> dipietro@sierra.com (Stephen DiPietro) writes:

>1) What if the bird blows up on the pad?
>
>  According to a study done prior to STS-1,
>  the maximum yield of an explosion on the 
>  pad is about 0.25 megaton of TNT...
>  (kiss the launch complex goodbye).


.25 megatons?  Utter nonsense.  There isn't that much chemical
energy in the fuel, by several orders of magnitude.

Think: the energy content of hydrogen/oxygen, per mass, is just
several times that of TNT.  For the vehicle to explode with a yield of
250 kilotons, it would need to have an initial mass of perhaps
100,000 tons (when the SRB fuel and structural mass are accounted for).

	Paul F. Dietz
	dietz@cs.rochester.edu
From: jdeitch@umiami.ir.miami.edu
Newsgroups: sci.space.shuttle
Subject: Re: Extended Duration Missions
Date: 7 Apr 92 12:08:40 EDT
Organization: Univ of Miami IR

In article <1992Apr5.213636.2602@vax1.umkc.edu>, wmetz@vax1.umkc.edu writes:
> 
> I just read that the new Extended Duration fitting in Columbia will only allow
> for 16 day missions...Am I wrong or has it been rather recent that they were
> still claiming 28 day missions would be possible?  What caused the considerable
> downsizing and is a further upgrade planned?

Just to throw more fat on the fire, I've heard that the 28 day missions are
possible with the EDO pallet and Endeavour, but not the other shuttles.

Comments ?

- Jonathan
-------------------------------------------------------------------------------
Internet : jdeitch@umiami.miami.edu | Go Braves !! | "I hate it when I can't
---------------------------------------------------| trust my own technology !" 
"Thrills!  Chills!  Magic!  Prizes!"  -- Hurricane |    -- Geordi LaForge

Gene Roddenberry, Isaac Asmiov, Jim Henson, Dr Seuss, Mel Blanc ... Sigh ... 
Newsgroups: sci.space.shuttle
From: geiste@hsi.com (Doug Geiste)
Subject: June Lift offs
Organization: 3M Health Information Systems, Wallingford, CT.
Distribution: usa
Date: Mon, 6 Apr 1992 19:18:14 GMT

Can anyone tell me if the Shuttle has a scheduled lift off in June?

Thanks
-- 
Doug Geiste                     |   All puffed-up with vanity, 
3M Health Information Systems   |   we see what we want to see. 
...!uunet!his!geiste            |   To the beautiful and the wise, 
geiste@hsi.com                  |   the mirror always lies.      -- Neil Peart
From: forrepr@eng.auburn.edu (Philip R. Forrest)
Newsgroups: sci.space.shuttle
Subject: Attn: JSC Personnel
Date: 8 Apr 92 00:08:49 GMT
Reply-To: forrepr@eng.auburn.edu
Organization: Auburn University Engineering

Are there any JSC personnel reading this group ?? 
If so, please let me know how you reach this group from JSC.
I'm a JSC Co-op (Professional Coffee-Cook and Coca-Cola fetcher)
currently on a school rotation and would like to continue
reading this fascinating group when I get back to Clear Lake
in June. I don't have a JESNET account (I work in Ascent/Entry
Flight Dynamics-DM46), just a PROFS account. Can this group be 
reached from PROFS ??

Thanks in advance for any info you might mail me.


Phil Forrest - A NASA/JSC Co-op student who hates being back at school :-(
  
Newsgroups: sci.space.shuttle
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: Extended Duration Missions
Date: Tue, 7 Apr 1992 21:13:40 GMT
Organization: U of Toronto Zoology

In article <1992Apr5.213636.2602@vax1.umkc.edu> wmetz@vax1.umkc.edu writes:
>I just read that the new Extended Duration fitting in Columbia will only allow
>for 16 day missions...Am I wrong or has it been rather recent that they were
>still claiming 28 day missions would be possible?

There are several variables involved, like whether there is a LOX/LH2 pallet
taking up part of the cargo bay.  (I think there can even be two.)  They do
plan 28-day missions eventually, but they're going to work up to it slowly.
-- 
GCC 2.0 is to C as SVR4 is to Unix.     | Henry Spencer @ U of Toronto Zoology
                             -Dick Dunn |  henry@zoo.toronto.edu  utzoo!henry
From: efranqui@girtab.usc.edu (Eduardo Franqui)
Newsgroups: sci.space.shuttle
Subject: Shuttle bad for the environment?
Date: 13 Apr 1992 16:23:54 -0700
Organization: University of Southern California, Los Angeles, CA
NNTP-Posting-Host: girtab.usc.edu


My question is in response to a one paragraph article in the latest Newsweek
magazine.  I unfortunately do not have the copy any longer and I am incapable
of remembering what it exactly stated, however it stated that the Space Shuttle
was environmentally damaging due to the release of ozone damaging material 
during its takeoff.  Of course whatever fuel it uses can not be environmentally
safe, but the magazine would not go out of its way to mention the obvious
unless they believed the situation to be worse than believed.  If anyone has a
copy of Newsweek, I believe it was the "Sex Psychotherapy" issue, look in the
begining pages where small unsigned paragraphs appear with some pictures to
look at.  I only wish I had my copy!!!  I want toknow more and see how true 
the article is.
From: oliver@vf.jsc.nasa.gov
Newsgroups: sci.space.shuttle
Subject: Re: June Lift offs
Date: 7 Apr 92 11:35:30 GMT
Distribution: usa
Organization: NASA Johnson Space Center

In article <1992Apr6.191814.11898@hsi.com>, geiste@hsi.com (Doug Geiste) writes:
> Can anyone tell me if the Shuttle has a scheduled lift off in June?
> 

Currently STS-50 is currently scheduled for a June 9th liftoff.

-- 

Pat Oliver -  	Lockheed Engineering and Sciences Company at NASA JSC
		OLIVER@vf.jsc.nasa.gov
		All standard disclamers apply.
Newsgroups: sci.space.shuttle
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: Endeavour's SSME test fire
Date: Tue, 7 Apr 1992 21:14:33 GMT
Organization: U of Toronto Zoology

In article <1992Apr6.235224.13268@umiami.ir.miami.edu> jdeitch@umiami.ir.miami.edu writes:
>On an unrelated note, what's the drag chute that was being serviced according
>to today's Shuttle status report ?  Is this for landing ?

Right.  It's to make things easier on the brakes and wheels.
-- 
GCC 2.0 is to C as SVR4 is to Unix.     | Henry Spencer @ U of Toronto Zoology
                             -Dick Dunn |  henry@zoo.toronto.edu  utzoo!henry
Newsgroups: sci.space.shuttle
From: murphyed1@woods.ulowell.edu
Subject: Re: Shuttle bad for the environment?
Organization: University of Lowell
Date: Tue, 14 Apr 1992 01:30:46 GMT

In article <kuk60aINN1vg@girtab.usc.edu>, efranqui@girtab.usc.edu (Eduardo Franqui) writes:
> 
> My question is in response to a one paragraph article in the latest Newsweek
> magazine.  I unfortunately do not have the copy any longer and I am incapable
> of remembering what it exactly stated, however it stated that the Space Shuttle
> was environmentally damaging due to the release of ozone damaging material 
> during its takeoff.  Of course whatever fuel it uses can not be environmentally
> safe, but the magazine would not go out of its way to mention the obvious
> unless they believed the situation to be worse than believed.  If anyone has a
> copy of Newsweek, I believe it was the "Sex Psychotherapy" issue, look in the
> begining pages where small unsigned paragraphs appear with some pictures to
> look at.  I only wish I had my copy!!!  I want toknow more and see how true 
> the article is. 

Well, I don't know about the SRB's, but the main engines couldn't possibly be
damaging to the enviroment.  All fuel is made of is H2, and O2.  Combine these
and they "burn" forming H2O.  Last time I checked, that's about the least
damaging chemical in the world for our environment.

My $.02

Ed...

-- 
=====  Ed Murphy    (The University disclaims everything!)   --- | /  ---- 
  |    Internet Mail :: Murphyed1@woods.ulowell.edu          /|\ |/    \
=====  "Warning, Phi Kap's May Be Habit Forming!!!"          \|/ |\    /
  |    Groundmail (The Slow Way) 1 University Ave. Box 1136  --- | \  ----
===                             Lowell, Ma. 01854 U.S.A.    Phi Kappa Sigma
                                                         Gamma Upsilon Chapter
From: pdejong@fwi.uva.nl (Paul Gerard de Jong)
Newsgroups: sci.space.shuttle
Subject: I'm tall, that doesn't help
Summary: Am I too tall to be an astronaut ?
Keywords: tall astronaut
Date: 6 Apr 92 06:52:41 GMT
Organization: FWI, University of Amsterdam

Hi all

I'm 6'7", which they say is a little tall.
Apart from that I'd say I'm rather qualified to become an astronaut. I've been
in free fall (parabolic flights) and enjoyed it. I have a physics and an 
electronics degree. I have worked as a scientist with IML-1. They say I have
a pleasant personality etc...
The only a priori BUT seems to be my height. Could any insider tell me how hard
this height limit is (I've read it's 6'4" for shuttle missions). From my para-
bolic Flight experience it seems to me that height shouldn't be that important
since you'll mostly curl up a little when you're in free fall.

Any comments welcome.

Bart van Deenen, Amsterdam, Holland

vdeenen@phys.uva.nl
Newsgroups: sci.space.shuttle
From: bjr@po.CWRU.Edu (Brian J. Roberts)
Subject: Re: Solid Rocket Boosters (old and new)
Reply-To: bjr@po.CWRU.Edu (Brian J. Roberts)
Organization: Case Western Reserve University, Cleveland, OH (USA)
Date: Mon, 13 Apr 92 19:28:52 GMT


In a previous article, brent@cco.caltech.edu (Brent R. Eubanks) says:

>They test the boosters on a horizontal testbed, bolted down tight!

	Is the only problem with testing the boosters in a vertical testbed the
design and complexity of the test bed?  I thought I remember reading about 
problems that can not be detected because the boosters are tested on a 
horizontal testbed.

Just wondering,
-- Brian
-- 
Brian Roberts        e-mail: bjr@po.cwru.edu
Case Western Reserve University, Department of Mechanical/Aerospace Engineering
home: 3658 Shields Road, Canfield, Ohio, 44406  (216) 792-9844
school: 11896 Carlton Road, Suite 610A, Cleveland, Ohio, 44106  (216) 754-2077
Newsgroups: sci.space
From: gwc@csd4.csd.uwm.edu (Greg F Walz Chojnacki)
Subject: Re: PLEASE READ THIS!
Originator: gwc@csd4.csd.uwm.edu
Reply-To: gwc@csd4.csd.uwm.edu
Organization: University of Wisconsin - Milwaukee
Date: Thu, 16 Apr 1992 23:03:37 GMT

From article <1992Apr16.002205.6554@bsu-ucs.uucp>, by 01ksdavis@bsu-ucs.uucp:
> 
> 	Mind you, this is a rumor I heard from a friend of mine who thinks he
> knows everything, but it has set upon me a nagging doubt.
> 	He told me that now that the Soviets are out of money, they can't send
> up a shuttle to bring back their remaining astronauts.
> 	He also told me that our guys Space Shuttle Atlantis couldn't rescue
> them, not only because they didn't have room, but also because they couldn't
> dock to the soviet spacestation Mir.
> 	I would very much like not to believe this.
> 
> 	At least somebody tell me that Mir is self-sufficient.
> 
> 		Does anybody know?
> 
It's my understanding that the capsule used to get caosmonauts to Mir would
serve reasonably as a lifeboat without [much?] helpfrom ground control  --
or the Shuttle.

Greg
Newsgroups: sci.space
From: jcm3r@faraday.clas.Virginia.EDU (John Carl Martin)
Subject: Re: Help finding NASA GIF files
Organization: University of Virginia
Date: Mon, 13 Apr 1992 23:54:57 GMT

In article <1992Apr13.020603.6818@murdoch.acc.Virginia.EDU> jcm3r@faraday.clas.Virginia.EDU (John Carl Martin) writes:
>On Sunday night, I was FTPing to the ames.arc.nasa.gov to download
>some GIF files that I had picked out.  I expected to find these
>files in the directory /pub/SPACE/GIF but the directory was empty,
>except for the INDEX file which read:
>       total: 0

I checked for these files this afternoon and they where there.  Sorry for
the false alarm but I swear they were not there Sunday night.

John C. Martin
  jcm3r@virginia.edu
Xref: sparky sci.space:7412 rec.models.rockets:864
From: hughes@gary.enet.dec.com (Gary Hughes - VMS Development)
Newsgroups: sci.space,rec.models.rockets
Subject: Re: More Titan Sources
Date: 9 Apr 92 19:26:03 GMT
Followup-To: sci.space
Organization: Digital Equipment Corporation


In article <450@rml.UUCP>, jack@rml.UUCP (jack hagerty) writes...
>A few months ago I posted a request for information on the Titan IIIB
.
.
>4) Is anyone out there familiar enough with the III series that I could
>just ask my question directly? The questions are really pretty simple
>(locations of external piping and cable troughs, surface markings, etc)

Well, I'm not but I do have some suggestions.

The 3B (and 34B) models were specifically intended to pick up from existing
Atlas and Thor based ELVs to carry a variety of Agena-based recon and intel
satellites.

You'll notice that I said 'Agena-based'. In most cases the Agena stage was part
of the spacecraft and I would guess that the external dimensions of the Agena
and it's payload fairing are classified.

For the lower stages you could use the dimensions of the Titan 3D core for the
3B or the 34D core for the 34D. For the 3B, you could probably also use the 3C
external dimensions which would be much easier to find. They should be the same
(the 3C uses a different guidance package to the 3B/D, but I don't think this
changes external dimensions).

Beyond that, some color pix of 3B launches might help, depending upon the level
of detail you need.

gary
Newsgroups: sci.space
From: ellis@msl475a.erim.org (Ken Ellis)
Subject: Re: Human UV vision
Organization: Environmental Research Institute of Michigan, Ann Arbor, Michigan
	<YdrC22m00WBKI6t78H@andrew.cmu.edu>
Date: 7 Apr 92 08:31:25


My mother-in-law has had both of her lenses replaced with implants.
One of the lenses transmitts UV. The newer one does not. I gave her a
Corning glass filter to look through that had a maximum transmittance
at about 340 nm and is nominally completely absorbing in the visible.
I can't see a thing through the filter under normal circumstances, but
she could see through it just fine with one eye. It was a bright sunny
day and she could read the thermometer on the front porch through it.
The only thing that I could see through it was sun glints off of a car
parked outside. I suppose that I could have seen the sun through it
but I don't think that would be too safe. The color that I saw was a
deep violet. 

Another interesting thing you can try is to look at a bright white
light source through an 833 nm laser line filter. This is well passed
the nominal sensitivity cut-off of the eye at 700 nm. The lens/cornea
transmits near-IR radiation even though our retinas are insensitive to
it. In a darkened room, however, you can see the 833 nm radiation,
which has a very dark red color. 

Ken
--
_____
\                                      |  Opinions expressed here are solely
 \   ERIM   Ken Ellis                  |  those of the author and do not
 /          ellis@erim.org             |  necessarily represent those of 
/____|                                 |  his employer.
From: loren@pixar.com (Loren Carpenter)
Newsgroups: sci.space
Subject: Re: Human UV vision
Date: 7 Apr 92 01:21:05 GMT
Organization: Pixar -- Point Richmond, California

In article <9204030413.AA14725@cmr.ncsl.nist.gov> roberts@CMR.NCSL.NIST.GOV (John Roberts) writes:
>
>[This was originally a discussion on whether organisms from other planets
>might see the same spectral range that we do.]
>
>-From: LOPEZ@HWS.BITNET
>
>-          In a previous post Mr. Roberts mentioned that the retina
>-can detect UV rays but the lens filters this out.  He then asked cataract
>-surgery patients to send him information on this.  Well this jogged my
>-memory about an essay Arthur C. Clarke wrote in his anthology _Report on
>-Planet Three_.  In it he wrote an essay about frequencies that humans could
>-not percieve with their senses.  This was in the last half of the book, Mr.
>-Roberts for you to check.
>
>-Cal Lopez
>-Sophomore Hobart&Wm Smith Clgs
>
>Thanks for your reply. Now I wonder what the "color" of UV is! (My guess would
>be blue.)
>
>John Roberts
>roberts@cmr.ncsl.nist.gov
>

It's an electric indigo.  Near IR is an electric magenta pink.  At least
that's what I see doing the following...

	Obtain a Wratten 18A filter, preferably 3"x3" glass.  It is a 
		notch filter for visible wavelengths.  I don't have the
		parameters handy, but the glass looks real black.  I got
		mine from Kodak about 20 years ago.

	Get a simple glass prism and hold it against the filter.

	Look at a bright white light source, through the prism and the
		filter.  I looked at the sun, but you might not want to
		be that adventurous.

	What I see is 2 images of the light source, one corresponding
		to UV and the other to IR.  The UV one is fuzzier than
		the IR one, probably due to being more out of focus.


Since color perception is kind of a personal thing, you have to try this
for yourself.

p.s.  I haven't noticed any visual impairment since I did this, but I
	can't guarantee you won't.


		Loren Carpenter
		loren@pixar.com
From: lordSnooty@cup.portal.com (Andrew - Palfreyman)
Newsgroups: sci.space
Subject: Re: SDI update
Date: Thu, 16 Apr 92 21:27:51 PDT
Organization: The Portal System (TM)
  <Z4XTiB7w164w@clubzen.fidonet.org> <1992Apr8.054146.8156@zoo.toronto.edu>
  <GABRIELE.92Apr8110315@solecism.aero.org>
  <1992Apr9.015456.19418@zoo.toronto.edu>
  <GABRIELE.92Apr9094352@solecism.aero.org>
  <1992Apr14.231747.17888@ux1.cso.uiuc.edu>

As an oblique query, is there a known way to vary the trajectory of an
earth-based railgun projectile?
 --------------------------------------------------------------------------
| lord snooty @the giant | wolfpack, silver, down to the water             |
| poisoned electric head |              andrew palfreyman@cup.portal.com   |
 --------------------------------------------------------------------------
Newsgroups: sci.space
From: edotto@uipsuxb.ps.uiuc.edu (Edward C. Otto III)
Subject: Re: BUILD YOUR OWN HUBBLE SPACE TELESCOPE
Organization: University of Illinois at Urbana
Date: Tue, 14 Apr 1992 18:59:28 GMT

lung@oasys.dt.navy.mil (Terence Lung) writes:


> 1 launch vehicle.
> 126 "Master Constructor" Erector Sets(tm).
> 1 Radio Shack(tm) Pro-2001 scanner.
> 1 2-meter block of glass.
> 1 box of aluminum foil.
> 4 sheets of #20 (coarse) sandpaper.
> 4 sheets of #150 (fine) sandpaper.
> 2 children's magnifying glasses.

> 2. Using the #20 sandpaper, grind the block of glass until it takes
>    on the shape of a convex mirror.  Be very careful in this step
>    because if you get the shape wrong you'll have to start over
>    again.  Use the #150 sandpaper to smooth out any irregularities
>    and fix any minor problems with the focus.  Then melt the aluminum
>    foil and vacuum deposit 1-2 atomic layers of aluminum on the
>    surface of the mirror.  Mount the mirror in its place in the
>    superstructure.   

Right.  Like, this mirror must be 10**9 times worse than the main mirror
on the HST.  the #150 sandpaper would leave so many grooves that it
could NEVER function.

And, for your information - aluminium foil is an alloy, NOT pure
aluminium. You'd never get it to vacum deposit evenly.
--
Edward C. Otto III   	    *  E-mail addresses:  e-otto@uiuc.edu
Printing Services Office    *  Phone:  217/333-9422
54A E. Gregory Drive	    *  "The only thing we have to fear is
Champaign, IL  61820	    *  24 line .signature files..."
From: sichase@csa1.lbl.gov (SCOTT I CHASE)
Newsgroups: sci.space
Subject: Re: SDI update
Date: 13 Apr 92 20:24:53 GMT
Organization: Lawrence Berkeley Laboratory - Berkeley, CA, USA
Distribution: na
Reply-To: sichase@csa1.lbl.gov
NNTP-Posting-Host: 128.3.254.196
News-Software: VAX/VMS VNEWS 1.3-4   

In article <1992Apr12.004305.8209@zoo.toronto.edu>, henry@zoo.toronto.edu (Henry Spencer) writes...

>This boils down to "how likely is it that the communications will fail,
>*and* the interceptor will then arm itself without proper authorization?".
>The probability of such an occurrence will never be zero; the probability
>of analogous multiple failures in ground-based systems is not zero either.
>What you can do is reduce that probability as far as you think it needs
>to be reduced.  

Unfortunately, this is a very hard problem, both scientifically and socially.
Risk assessment is difficult for complex systems.  How do you really know what
the probability of a software failure due to an unidentified bug is?  People
are seriously working on answering such questions, but it's tough going.

Furthermore, you can never remove politics and social pressure from complex
organizations responsible for implementing complex projects.  Read Feynman's
appendix to the Rogers Commission Report.  He found that working engineers were
working with "1 in a hundred" estimates of catastrophic failure, while their
bosses (who had to answer to the politicos) either (a) were lying or (b) truly
believed that the system had been designed with a 1 in a hundred-thousand 
(or something like that) chance for such a failure.

So I, for one, have serious doubts about any (however well intentioned) group 
being able (in my lifetime) to do accurate failure-risk assessments and
designing rational systems with tolerable safety limits.  I consider the human 
problems more difficult to deal with than the scientific ones.

-Scott