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External
Since: Mar 11, 2004
Posts: 87
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(Msg. 1) Posted: Wed Sep 15, 2004 11:07 am
Post subject: Does the Moon have Time Zones?
Archived from groups: alt>books>larry-niven (more info?)
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External
Since: Jul 06, 2004
Posts: 516
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(Msg. 2) Posted: Wed Sep 15, 2004 11:07 am
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
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"T" <tberk.RemoveThis@sbcglobal.net> wrote in message
news:HKS1d.21258$rm1.18816@newssvr29.news.prodigy.com...
>
>
> Should it have a sectional zone system (think orange slices) or is it
> all ZULU time, no matter where you are?
I doubt there would be any real reason for the moon to have time zones.
The "day" on the moon is 29 days long, remember. I can't remember the
reference once, but I once read that the average person could easily
walk on the moon fast enough to stay ahead of (or behind) the sun if
they wanted to. To my eyes, that makes the idea of time zones
superfluous.
Have a great day!
Ami
"Nothing is so bad that with a little thought, you couldn't make worse."<!-- ~MESSAGE_AFTER~ --> |
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External
Since: Jun 18, 2004
Posts: 20
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(Msg. 3) Posted: Wed Sep 15, 2004 6:00 pm
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
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In article <HKS1d.21258$rm1.18816@newssvr29.news.prodigy.com>, T wrote:
> Should it have a sectional zone system (think orange slices) or is it
> all ZULU time, no matter where you are?
>
Does? as in "at the moment"? I don't think so - because there
have never been sufficiently widely spread people on the moon for it to
be an issue.
In the future though, I'd expect that the norm for spaceflight
planning and operations - and astronomical work too : UTC (which is not
that far off ZULU).
Where there are significant environmental interactions then we'd
see the same issues as the operators of the Mars rovers are having -
there's a half-hour difference in day length between Mars and Earth, and
the operators are operating on Mars time.
In the future, say someone put a rover on the Moon requiring a
degree of human real-time interaction and also sunlight to power it ...
well that wouldn't be much of a problem - people do a 2-on 2-off work
rota (like I used to), and you need sufficient crews to provide 24-hour
cover in the 2-on period.
It wouldn't be much fun doing operations on a Venus mission, but
since it's day is so different to Earth's it would be as simple to keep
people on Earth time.
--
Aidan Karley,
Aberdeen, Scotland,
Location: 57°10'11" N, 02°08'43" W (sub-tropical Aberdeen), 0.021233<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Does the Moon have Time Zones? |
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External
Since: Jul 02, 2004
Posts: 18
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(Msg. 4) Posted: Thu Sep 16, 2004 1:00 am
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
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JRS: In article <2qqu1nF12ic72U1 DeleteThis @uni-berlin.de>, dated Wed, 15 Sep 2004
06:23:02, seen in news:alt.books.larry-niven, Ami Fairchild
<amif DeleteThis @delphidude.com> posted :
>"T" <tberk DeleteThis @sbcglobal.net> wrote in message
>news:HKS1d.21258$rm1.18816@newssvr29.news.prodigy.com...
>> Should it have a sectional zone system (think orange slices) or is it
>> all ZULU time, no matter where you are?
Since lunar surface operations would be affected by daylight, and the
Moon rotates with respect to the Sun-Moon line, there is a significant
related effect. But they would be calendar zones rather than clock
zones. They would not affect one's 24-hour cycle, but would be more
like fast seasons.
>I doubt there would be any real reason for the moon to have time zones.
>The "day" on the moon is 29 days long, remember. I can't remember the
>reference once, but I once read that the average person could easily
>walk on the moon fast enough to stay ahead of (or behind) the sun if
>they wanted to.
The radius of the Moon is about 1000 miles, so the circumference is
about 6300 miles. That's about 220 miles per day, or 9 mph. Few can
walk at 9 mph for long.
--
© John Stockton, Surrey, UK. ?@merlyn.demon.co.uk / ??.Stockton@physics.org ©
Web <URL:http://www.merlyn.demon.co.uk/> - FAQish topics, acronyms, & links.
Correct <= 4-line sig. separator as above, a line precisely "-- " (SoRFC1036)
Do not Mail News to me. Before a reply, quote with ">" or "> " (SoRFC1036)<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Does the Moon have Time Zones? |
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External
Since: Jan 05, 2004
Posts: 7
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(Msg. 5) Posted: Thu Sep 16, 2004 1:00 am
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"Dr John Stockton" <spam DeleteThis @merlyn.demon.co.uk> wrote in message
news:jz5EAUCE2KSBFwIr@merlyn.demon.co.uk...
> JRS: In article <2qqu1nF12ic72U1 DeleteThis @uni-berlin.de>, dated Wed, 15 Sep 2004
> 06:23:02, seen in news:alt.books.larry-niven, Ami Fairchild
> <amif DeleteThis @delphidude.com> posted :
> >"T" <tberk DeleteThis @sbcglobal.net> wrote in message
> >news:HKS1d.21258$rm1.18816@newssvr29.news.prodigy.com...
>
> >> Should it have a sectional zone system (think orange slices) or is it
> >> all ZULU time, no matter where you are?
>
> Since lunar surface operations would be affected by daylight, and the
> Moon rotates with respect to the Sun-Moon line, there is a significant
> related effect. But they would be calendar zones rather than clock
> zones. They would not affect one's 24-hour cycle, but would be more
> like fast seasons.
>
>
> >I doubt there would be any real reason for the moon to have time zones.
> >The "day" on the moon is 29 days long, remember. I can't remember the
> >reference once, but I once read that the average person could easily
> >walk on the moon fast enough to stay ahead of (or behind) the sun if
> >they wanted to.
>
> The radius of the Moon is about 1000 miles, so the circumference is
> about 6300 miles. That's about 220 miles per day, or 9 mph. Few can
> walk at 9 mph for long.
>
The 1/6 gravity would help a lot (but you'd probably spend most of the time
airborne between steps).
--
Zamboni<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Does the Moon have Time Zones? |
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External
Since: Jul 06, 2004
Posts: 516
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(Msg. 6) Posted: Thu Sep 16, 2004 1:00 am
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"Dr John Stockton" <spam DeleteThis @merlyn.demon.co.uk> wrote in message
news:jz5EAUCE2KSBFwIr@merlyn.demon.co.uk...
>
> The radius of the Moon is about 1000 miles, so the circumference is
> about 6300 miles. That's about 220 miles per day, or 9 mph. Few can
> walk at 9 mph for long.
Possibly not in a 1 G gravity field, but in a .15 gravity field? It
sounds possible.
Have a great day!
Ami
"Nothing is so bad that with a little thought, you couldn't make worse."<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Does the Moon have Time Zones? |
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External
Since: Jul 14, 2004
Posts: 62
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(Msg. 7) Posted: Thu Sep 16, 2004 1:00 am
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"Zamboni" <zamboni.TakeThisOut@nospam.com> wrote in message news:<ciaggp$683$1@nntp2-cm.news.eni.net>...
....
> The 1/6 gravity would help a lot (but you'd probably spend most of the time
> airborne between steps).
"air"borne? I think a better phrase would be "travelling ballistically".<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Does the Moon have Time Zones? |
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External
Since: Jun 11, 2004
Posts: 8
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(Msg. 8) Posted: Thu Sep 16, 2004 5:52 am
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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> That's about 220 miles per day, or 9 mph. Few can
>> walk at 9 mph for long.
>
>Possibly not in a 1 G gravity field, but in a .15 gravity field? It
>sounds possible.
Also depends upon the selenographic latitude. The distance will be alot less
if one is not on the equator.<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Does the Moon have Time Zones? |
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External
Since: Jul 06, 2004
Posts: 516
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(Msg. 9) Posted: Thu Sep 16, 2004 5:52 am
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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"G EddieA95" <geddiea95 RemoveThis @aol.com> wrote in message
news:20040915225220.07779.00000520@mb-m25.aol.com...
>
> Also depends upon the selenographic latitude. The distance will be
alot less
> if one is not on the equator.
Well, sure, I could see doing it easily 1 meter from the pole <g>.
Have a great day!
Ami
"Nothing is so bad that with a little thought, you couldn't make worse."<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Does the Moon have Time Zones? |
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External
Since: Mar 01, 2004
Posts: 44
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(Msg. 10) Posted: Thu Sep 16, 2004 1:08 pm
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
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On 9/15/2004 11:03 PM James Kuyper cranked up the brainbox and said:
> "air"borne? I think a better phrase would be "travelling ballistically".
Yeah, there's air on the Moon. Mr. Bedford and Mr. Cavor experienced it first
hand! 
--
jesus X [ Booze-fueled paragon of pointless cruelty and wanton sadism. ]
email [ jesus_x @ mozillanews.org ]
web [ <a style='text-decoration: underline;' href="http://www.mozillanews.org" target="_blank">http://www.mozillanews.org</a> ]
insult [ As usual, you've been a real pantload. ]
warning [ Don't touch that! You might mutate your fingers. ]<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Does the Moon have Time Zones? |
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External
Since: Jul 06, 2004
Posts: 516
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(Msg. 11) Posted: Thu Sep 16, 2004 1:08 pm
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
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"jesus X" <jesus_x RemoveThis @mozillanews.org> wrote in message
news:JCd2d.4142$bj2.1674@trnddc08...
>
> Yeah, there's air on the Moon. Mr. Bedford and Mr. Cavor experienced
it first
> hand!
The moon *does* have an atmosphere. It picks up random molecules out of
the molecules that the earth drops off in its area of space. The thing
is, it's something in the realm of trillions of times less dense than
earth's atmosphere <g>.
Have a great day!
Ami
"Nothing is so bad that with a little thought, you couldn't make worse."<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Does the Moon have Time Zones? |
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External
Since: Jul 02, 2004
Posts: 18
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(Msg. 12) Posted: Thu Sep 16, 2004 2:55 pm
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
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JRS: In article <20040915225220.07779.00000520 RemoveThis @mb-m25.aol.com>, dated
Thu, 16 Sep 2004 02:52:20, seen in news:alt.books.larry-niven, G
EddieA95 <geddiea95 RemoveThis @aol.com> posted :
>> That's about 220 miles per day, or 9 mph. Few can
>>> walk at 9 mph for long.
>>
>>Possibly not in a 1 G gravity field, but in a .15 gravity field? It
>>sounds possible.
>
>Also depends upon the selenographic latitude. The distance will be alot less
>if one is not on the equator.
The optimum direction to walk is an interesting problem.
If one walks along a line of latitude one must keep up a certain rate
indefinitely. If one angles a little towards the pole, one
significantly reduces the future one-lap distance, without much reducing
one's immediate circumferential speed. If one angles too far towards
the pole, dusk or dawn will soon arrive.
--
© John Stockton, Surrey, UK. ?@merlyn.demon.co.uk / ??.Stockton@physics.org ©
Web <URL:http://www.merlyn.demon.co.uk/> - FAQish topics, acronyms, & links.
Correct <= 4-line sig. separator as above, a line precisely "-- " (SoRFC1036)
Do not Mail News to me. Before a reply, quote with ">" or "> " (SoRFC1036)<!-- ~MESSAGE_AFTER~ --> >> Stay informed about: Does the Moon have Time Zones? |
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External
Since: Jul 14, 2004
Posts: 62
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(Msg. 13) Posted: Thu Sep 16, 2004 9:26 pm
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
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"Ami Fairchild" <amif.DeleteThis@delphidude.com> wrote in message news:<2qtlqaF13lhp1U1.DeleteThis@uni-berlin.de>...
> "jesus X" <jesus_x.DeleteThis@mozillanews.org> wrote in message
> news:JCd2d.4142$bj2.1674@trnddc08...
> >
> > Yeah, there's air on the Moon. Mr. Bedford and Mr. Cavor experienced
> it first
> > hand!
>
> The moon *does* have an atmosphere. It picks up random molecules out of
> the molecules that the earth drops off in its area of space. The thing
> is, it's something in the realm of trillions of times less dense than
> earth's atmosphere <g>.
"airborne" means "bourne up by the air". There's not nearly enough
atmosphere on the moon to actually support a flying object. >> Stay informed about: Does the Moon have Time Zones? |
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External
Since: Jul 28, 2003
Posts: 121
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(Msg. 14) Posted: Thu Sep 16, 2004 11:32 pm
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
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External
Since: Jul 06, 2004
Posts: 516
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(Msg. 15) Posted: Fri Sep 17, 2004 1:36 am
Post subject: Re: Does the Moon have Time Zones? [Login to view extended thread Info.]
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"James Kuyper" <kuyper.TakeThisOut@wizard.net> wrote in message
news:8b42afac.0409162026.26424d3e@posting.google.com...
>
> "airborne" means "bourne up by the air". There's not nearly enough
> atmosphere on the moon to actually support a flying object.
I doubt that it would, yes  .
Have a great day!
Ami
"Nothing is so bad that with a little thought, you couldn't make worse." >> Stay informed about: Does the Moon have Time Zones? |
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