|> Sure is. I've not heard of any specific HP into Space stuff. There was the
|> HP handheld calculator that was used on some (I think) Apollo missions.
HP inside Apollo? My, how things have changed ...
--
Philip R. Young
Data General Australia Pty. Ltd.
------------------------------
Date: 20 Jan 93 05:56:53 GMT
From: Ron Baalke <baalke@kelvin.jpl.nasa.gov>
Subject: Next unmanned missions to Venus?
Newsgroups: sci.space
In article <rabjab.25.727499456@golem.ucsd.edu>, rabjab@golem.ucsd.edu (rabjab) writes...
>Does anyone know of plans for future Venus exploration? Any
>leads would be appreciated.
The only mission I'm aware of that will be going to Venus within the
next 10 years is Cassini. Cassini will be making two Venus flybys
in 1998 and 1999 as part of its gravity assisted trajectory to Saturn.
But other than that, it looks pretty bleak for Venus missions. I know
several members of the Magellan team would like to see another spacecraft
dedicated to Venus. The Soviets had tentative plans a couple of years
ago to send a Venera spacecraft to Venus in 2005, but as far as I know
those plans have been abandoned.
___ _____ ___
/_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov
| | | | __ \ /| | | | Jet Propulsion Lab |
___| | | | |__) |/ | | |__ M/S 525-3684 Telos | Every once in a while,
/___| | | | ___/ | |/__ /| Pasadena, CA 91109 | try pushing your luck.
|_____|/ |_|/ |_____|/ |
------------------------------
Date: Wed, 20 Jan 1993 03:10:57 GMT
From: rabjab <rabjab@golem.ucsd.edu>
Subject: Next unmanned missions to Venus?
Newsgroups: sci.space
Does anyone know of plans for future Venus exploration? Any
leads would be appreciated.
thanks,
rabjab
------------------------------
Date: Wed, 20 Jan 1993 03:00:43 GMT
From: Bruce Dunn <Bruce_Dunn@mindlink.bc.ca>
Subject: Oxygen in Biosphere 2
Newsgroups: sci.space
> Carl Hage writes:
> The relatively small atmosphere of Bioshpere or a space colony would
> seem to have a number of problems which would not be significant in the
> large atmosphere of Earth.
Yes and no. The atmosphere problems with Biosphere II (drawdown of
oxygen and buildup of CO2 during the winter) don't show that a sealed system
is unusable. They do however suggest that there is a mismatch in the current
design between the ability of the biological components to crank the gases up
and down rapidly, and the ability of the atmosphere to buffer these changes.
If the Biosphere II had a larger volume with the same biological load, the
problem would not have occurred. In a space colony with light which does not
have seasonal changes, there would have been no problem with the current
setup.
--
Bruce Dunn Vancouver, Canada Bruce_Dunn@mindlink.bc.ca
------------------------------
Date: Wed, 20 Jan 1993 18:42:27 GMT
From: Donald Lindsay <lindsay+@cs.cmu.edu>
Subject: Oxygen in Biosphere 2
Newsgroups: sci.space
Bruce_Dunn@mindlink.bc.ca (Bruce Dunn) writes:
>In a space colony with light which does not
>have seasonal changes, there would have been no problem with the current
>setup.
Do you mean artificial lighting would fix B2's problem?
Then why don't they? It wouldn't reduce the integrity of the
experiment. They are only supposed to be sealed in terms of chemical
and biological exchange. I wouldn't be disturbed if they brought grow
lights in through the airlock, or strung them outside the windows.
--
Don D.C.Lindsay Carnegie Mellon Computer Science
------------------------------
Date: 20 Jan 93 06:17:04 GMT
From: Michael Corbin <Michael.Corbin@p0.f428.n104.z1.FIDONET.ORG>
Subject: ParaNet UFO Continuum Radio Show
Newsgroups: sci.space
* Forwarded from "ParaNet UFO Echo"
* Originally by Michael Corbin
* Originally to All
* Originally dated 19 Jan 1993, 23:16
The satellite radio network that was carrying our show has closed it doors for
financial reasons, thus canceling our show. We are in the process of relocating to our new home and will be back up in a few weeks with an announcement to follow as to time, satellite frequencies, etc.
Thanks for your interest in the show. The first four weeks was very enjoyable.
Unfortunately, you happen to be wrong. About a year or two ago there
was a fatal accident at the Lord Elgin Hotel here in Ottawa where the door shut on someone and the elevator went up anyway. Pretty gruesome, but true. (I'm
pretty sure the elevator was an Otis.)
trev
------------------------------
Date: Wed, 20 Jan 93 17:30:39 EST
From: Tom <18084TM@msu.edu>
Subject: Tidally locked bodies
Dale Greer sez;
>The moon does spin. Its rotational period is equal to its orbital period
>about the Earth, so it always presents the same face to the Earth. This
>happened because the distribution of the Moon's mass is not perfectly
>spherical; it's a little lumpy.
It would have happened even if the moon had a perfectly smooth mass
distribution. The uneven distribution will determine the final
tidally-locked orientation, but it isn't required for the tides to exist.
>Originally, the Moon was spinning more
>quickly than today, but over time, tidal forces working on the lumps in the
>Moon slowed it down until the lump with the greatest angular moment became
>"locked" into place, so that it always points toward the Earth. The
>technical term for this is Gravity Gradient Stabilization.
Another interesting effect of this tidal interaction is the gradual increase
in the orbital distance of the moon, as it's (and the Earth's) rotational
angular momentum is converted into orbital momentum (and a bunch of heat from
friction, too).
The story I've heard (actually a prediction) is that when the Earth is
finally locked to the moon, as the moon is to Earth, the Moon will take
nearly a year to orbit the Earth, after which the moon's orbit will
finally start to decay (ever so slowly, due to friction from libration)
until it is torn apart into rings. Whether this or the death of the
