Space & Astronomy/Space and Astronomy (October 1993).iso/mac/TEXT/SPACEDIG/V08/V8_322.TXT

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Date: Fri, 12 Aug 88 01:04:42 PDT
From: Ted Anderson <[e-mail]>
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Subject: SPACE Digest V8 #322

SPACE Digest                                      Volume 8 : Issue 322

Today's Topics:
               Re: Space Cities
                Re: Satellites
                Re: Satellites
             Re: Libertarian space policy
        Re: Space Station Name chosen -- Fred
         Orbital Data and Observation Relay Satellite
                 Re: E stamp
                Re: What's New
  Re: Automated vs. personned spacecraft -- a reasonable compromise
                Re: Satellites
               Re: Solar Sails
                Re: Satellites
                Re: Satellites
----------------------------------------------------------------------

Date: Thu,  4 Aug 88 21:46:04 EDT
From: "Keith F. Lynch" <[e-mail]>
Subject: Re: Space Cities
To: [e-mail]
Cc: [e-mail], [e-mail]

> From: [e-mail]

Why don't you get an address that the rest of the world has heard of
and can reply to?

>> People might come to prefer weightlessness.

> Sure. Who needs all that calcium, anyway. And surely nobody cares
> about being able to taste their food.

Ask the Russians.  Doesn't seem to bother them.

>> Too fast!   That will give you about 3 Gs.

Rats.  I thought I had killed that one and re-sent it without that
line.  I was calculating in feet and thinking in meters.  Did two
copies show up?

>> You'd better have good radiation shielding.

> Do you really think you're such a genius that nobody else thought of
> that? If you had bothered to read any of the three references ...

There is no need to be rude.  I did not know whether the person asking
the question knew of this, so I thought I should mention it.

> I hope that in the future, you will bother to read some references
> and check your calculations before you waste the time of those on
> the net who know better, and mislead those who don't.

I hope in the future you will be more polite.  That one line was the
only error in my posting, and had I known it had gone out, I would
have asked Ted Anderson to pull it.
                                ...Keith

------------------------------

Date: 5 Aug 88 00:52:56 GMT
From: tektronix!teklds!mrloog![e-mail]  (Dan Tilque;1893;92-101;)
Subject: Re: Satellites

In article <[e-mail]> [e-mail] (Steve Hix) writes:
>The full list follows...

Most deleted
>
>Pioneer 8    12/13/67 US    (still active)

You forgot Mariners 9 and 10 which were launched somewhere in between
these two, if memory serves me correctly (reference works at home).
Mariner 9 is still orbiting Mars but ran out of attitude fuel.  Mariner 10
is still orbiting the Sun at roughly Mercury's orbit.

>Mars 4        7/21/73  USSR    (missed Mars orbit)


---
Dan Tilque    --    [e-mail]

------------------------------

Date: 5 Aug 88 01:17:12 GMT
From: tektronix!teklds!mrloog![e-mail]  (Dan Tilque;1893;92-101;)
Subject: Re: Satellites

In article <[e-mail]> [e-mail] (Dan Tilque) writes:
>In article <[e-mail]> [e-mail] (Steve Hix) writes:
>>The full list follows...
>
>
>You forgot Mariners 9 and 10 ...
>Mariner 9 is still orbiting Mars but ran out of attitude fuel.  Mariner 10
>is still orbiting the Sun at roughly Mercury's orbit.

After posting the above, I went back and reread the list.  It seems it was
also missing Pioneers 10 and 11.  They are currently on their way out of
the Solar System and should reach the heliopause any year now.  Still
active, as far as I know.

How can any list of space probes be complete without the above four.
Each of them achieved a very important first in the history of space
exploration.  The discoveries made by each of them are too numerous to
mention.

    Mariner 9    First orbit of another planet

    Mariner 10    First flyby of Mercury (only probe to flyby
            Mercury, which it did 3 times.)

    Pioneer 10    First flyby of Jupiter, first to achieve solar
            escape velocity.

    Pioneer 11    First flyby of Saturn


---
Dan Tilque    --    [e-mail]

------------------------------

Date: 4 Aug 88 16:18:27 GMT
From: uop![e-mail]  ( Todd/Dr. Nethack )
Subject: Re: Libertarian space policy

In article <[e-mail]>, [e-mail] (D Gary Grady) writes:

> In article <[e-mail]> [e-mail] (Leonard Erickson) writes:

> >(In case you didn't know, the *real* reason that Britain and Argentina
> >went to war over the Falklands was that it looks like there may
> >be a major oilfield in the South Atlantic and the Falklands are the
> >nearest land. Own the Falklands and you own the oil..)

> Wrong newsgroup for this, but for the record such conspiracy theories
> rarely hold water on close examination.

Actually, if you look at the geology of the area, there is a high degree of
probability that there is a large oil mass there.

If you think money is not reason enough for war, you must be from another
planet.

------------------------------

Date: 4 Aug 88 19:59:54 GMT
From: uop![e-mail]  ( Todd/Dr. Nethack )
Subject: Re: Space Station Name chosen -- Fred

In article <[e-mail]>, [e-mail] (Ritchey Ruff) writes:
> In article <[e-mail]> [e-mail] (Yngve Larsson) writes:
> >In article <[e-mail]> [e-mail] (John Gregor) writes:
> >>>space station "Freedom".
> >>                ^^^ ^
> yea, yea...space station "Fred Om", or "Fred" for short...

I hate to break it to you.. but they were toying with all sorts of names
before fred.. they were going to try "Barney"  but fred was chosen instead.

The "Fred-Om" was from a suggestion by Eddie "Superfrog" Caplan.

------------------------------

Date: 4 Aug 88 21:25:13 GMT
From: uop![e-mail]  ( Todd/Dr. Nethack )
Subject: Orbital Data and Observation Relay Satellite

Not to be absurd.. (the title was to be abit funny, but this is a valid
concern ..  I hope)

In watching the re-run of NOVA's "Death of a Star".. it occured to me that
a network of satellites capable of swapping telemetry and digitized phone
and visual communications would be a good thing to have towards better
connectivity with remote sites.

They could be accessed from earth stations using small dishes (comparitively).

I am sure someone is working on something like this.. someplace..

But I could not help feeling abit primitive that the discovery of the super-
nova, could not be relayed in a more rapid way.

I thought of things I could have done.. amatuer radio, or an AMSAT hookup..

why not a joint .edu or .arpa project to fund a group of connects that can
swap pictures, images, telephone, etc..

That belongs to the .edu community at large?

I don't think they should be "public access".. but in a sense, it would
be nice if a flash net could be established to facilitate info throughput
from the more remote regions..

--just an idea!

---
ARPA   cogent!uop![e-mail]      Or something like that
BITNET ucdavis!uop![e-mail]          anyway...
UUCP   ucbvax!ucdavis!uop!todd
UUNET  uop![e-mail]         ..this account soon to be gone...

------------------------------

Date: 4 Aug 88 22:16:50 GMT
From: ncspm![e-mail]  (Jay C. Smith)
Subject: Re: E stamp


The "E" stamp was done by Robert McCall, a noted space artist who has
designed almost every space stamp since the Moon Landing one from 1969.
BTW, that one showed the Earth just above the horizon in the background,
when it actually wasn't in that position.  He knew that, and he probably
realizes that the "E" stamp shows Earth inaccurately.  It's called
artistic license.

Robert McCall is also well-known for his pre-production paintings for
"2001:  A Space Odyssey" and the giant space mural in the Smithsonian's
National Air and Space Museum.

Oh, yes, and the "E" stamp is "domestic use only" because non-denominated
stamps aren't valid for international postage (excepting special waivers
Canada routinely grants).

--
"The duality of man.  The Jungian thing, sir."
---------------------------------------------------------------------
Jay C. Smith                      uucp:     ...!mcnc!ncsuvx!ncspm!jay
Domain: [e-mail]        internet: [e-mail]

------------------------------

Date: 3 Aug 88 14:54:38 GMT
From: att!chinet!mcdchg!clyde!watmath!utgpu!utzoo![e-mail]  (Henry Spencer)
Subject: Re: What's New

In article <880801192112.20e0154a@Iowa> [e-mail] (Allen C. Kistler) writes:
>... the idea has been around for a while...

Yes, and some of the recent work on tethers has increased interest in it.
One cute idea that's been suggested is based on the reversibility of the
technique:  use the tether for propulsion while you are in sunlight, and
for power while you're in Earth's shadow.  This combines orbit maintenance
(assuming adequate power in sunlight) with energy storage.
--
MSDOS is not dead, it just     |     Henry Spencer at U of Toronto Zoology
smells that way.               | uunet!mnetor!utzoo!henry [e-mail]

------------------------------

Date: 3 Aug 88 14:44:03 GMT
From: att!chinet!mcdchg!clyde!watmath!utgpu!utzoo![e-mail]  (Henry Spencer)
Subject: Re: Automated vs. personned spacecraft -- a reasonable compromise

In article <[e-mail]> [e-mail] (Knudsen) writes:
>(3) While many vital organs do fail on people prematurely
>(hearts, eyes, cancer), the brain has life limits too. ...
>Brain cells DO NOT divide and reproduce -- when they're gone,
>they're gone...

Actually, recent research has shown that brain neurons *do* divide and
reproduce in some species of birds.  It's not clear yet whether it happens
in mammals.  In other words, this particular dogma is being re-examined
of late, and there may be some surprises.  If the things can reproduce
in adults, it's not inconceivable that there might be some way to encourage
them to do so when necessary.
--
MSDOS is not dead, it just     |     Henry Spencer at U of Toronto Zoology
smells that way.               | uunet!mnetor!utzoo!henry [e-mail]

------------------------------

Date: 4 Aug 88 01:24:00 GMT
From: unmvax!charon!geinah.unm.edu![e-mail]  (SEDS-UNM)
Subject: Re: Satellites


Here's the address to use when requesting the Satellite Situation Report:

NASA
Office of Public Affairs
Code 502
Goddard Space Flight Center
Greenbelt, MD  20771



-Ollie

------------------------------

Date: 3 Aug 88 21:54:59 GMT
From: attcan!utgpu!water!watmath!clyde!mcdchg!ddsw1!igloo![e-mail]  (Bronis Vidugiris)
Subject: Re: Solar Sails


I think doppler shift (which was ingored for simplicity in the referenced
posting, but mentioned in other postings on this topic), would keep the
energy of the universe constant.  Picking an inertial frame stationary
relative to the sun, as soon as the sail starts to move the light
that is emitted will be red shifted, lowering it's energy.  A sail that
is held stationary will not cause red shift, but, of course, will not have
any work performed on it either.  A decelerating sail will cause blue
shift, but then it is in fact loosing energy.

------------------------------

Date: 3 Aug 88 20:38:55 GMT
From: unmvax!charon!geinah.unm.edu![e-mail]  (SEDS-UNM)
Subject: Re: Satellites


The NASA Satellite Situation Report is handy for looking up
the current status of almost every sat ever launched from all
countries.  This free listing may be obtained from the
Goddard Space Flight Center in Greenbelt, MD.  Sorry, no
address handy at the moment.

------------------------------

Date: 4 Aug 88 13:58:38 GMT
From: b.gp.cs.cmu.edu![e-mail]
Subject: Re: Satellites

In article <[e-mail]>, [e-mail] (Steve Hix) writes:
}Pioneer 6       12/16/65 US     (still returning good data)
}Pioneer 7       8/16/66  US     (still active)
}Pioneer 8       12/13/67 US     (still active)

Talk about outliving their expected lifetimes!  I didn't know anything older
than Pioneer 10 was still active out there.  BTW, Pioneers 10 and 11 were
missing from the list.

--
UUCP: {ucbvax,harvard}!cs.cmu.edu!ralf -=-=-=- Voice: [phone] (school)
ARPA: [e-mail]  BIT: ralf%cs.cmu.edu@CMUCCVMA  FIDO: Ralf Brown 1:129/31
Disclaimer? I     |Ducharm's Axiom:  If you view your problem closely enough
claimed something?|   you will recognize yourself as part of the problem.

------------------------------

End of SPACE Digest V8 #322
*******************