Subject: Re: =?ISO-8859-1?Q?xkcd:_=93Moon_Landing?=
=?ISO-8859-1?Q?_Mission_Profiles=94?=

On Fri, 22 Mar 2024 17:14:32 -0400, Cryptoengineer
<petertrei@gmail.com> wrote:

On 3/21/2024 11:46 AM, Paul S Person wrote:

On Wed, 20 Mar 2024 14:03:02 -0500, Lynn McGuire
<lynnmcguire5@gmail.com> wrote:
=20

xkcd: =93Moon Landing Mission Profiles=94
https://xkcd.com/2909/

Explained at:

= https://www.explainxkcd.com/wiki/index.php/2909:_Moon_Landing_Mission_Pro= files

Moving the Moon closer would make a great space station and vacation = spot.

Until it broke up and then rained on the Earth for hundreds of years.

=20
And the stepladder suggestion seems to presuppose that the Moon is
both very close to the Earth and yet stationary relative to the Earth,
which might be harder to achieve then just contracting the orbit.

The Earth-Moon Roche limit is 9600 km, center to center, or about 2000
km surface to surface.

Any closer, and the moon would break up.

At that height, the moon would orbit in about five and a half hours.

Effects on the tides would be noticeable, about 1600x larger than now.

So, the stepladder suggestion (in the popup in the online comic) is
definitely out, then.
--=20
"Here lies the Tuscan poet Aretino,
Who evil spoke of everyone but God,
Giving as his excuse, 'I never knew him.'"

--- MBSE BBS v1.0.8.4 (Linux-x86_64)
* Origin: A noiseless patient Spider (3:633/280.2@fidonet)

Subject: Re: =?ISO-8859-1?Q?xkcd:_=93Moon_Landing?=
=?ISO-8859-1?Q?_Mission_Profiles=94?=

Paul S Person <psperson@old.netcom.invalid> wrote:

So, the stepladder suggestion (in the popup in the online comic) is >definitely out, then.

Duck! Here comes the moon again!
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

--- MBSE BBS v1.0.8.4 (Linux-x86_64)
* Origin: Former users of Netcom shell (1989-2000) (3:633/280.2@fidonet)

On Fri, 22 Mar 2024 17:14:32 -0400, Cryptoengineer
<petertrei@gmail.com> wrote:

On 3/21/2024 11:46 AM, Paul S Person wrote:

And the stepladder suggestion seems to presuppose that the Moon is
both very close to the Earth and yet stationary relative to the Earth,
which might be harder to achieve then just contracting the orbit.

The Earth-Moon Roche limit is 9600 km, center to center, or about 2000
km surface to surface.

Well, then, geostationary orbit should do just fine.

So the only problem would be what material to make the stepladder out
of.

Well, that and not getting tired on the climb up.

John Savard

--- MBSE BBS v1.0.8.4 (Linux-x86_64)
* Origin: A noiseless patient Spider (3:633/280.2@fidonet)

On 3/25/2024 8:09 AM, John Savard wrote:

On Fri, 22 Mar 2024 17:14:32 -0400, Cryptoengineer
<petertrei@gmail.com> wrote:

On 3/21/2024 11:46 AM, Paul S Person wrote:

And the stepladder suggestion seems to presuppose that the Moon is
both very close to the Earth and yet stationary relative to the Earth,
which might be harder to achieve then just contracting the orbit.

The Earth-Moon Roche limit is 9600 km, center to center, or about 2000
km surface to surface.

Well, then, geostationary orbit should do just fine.

So the only problem would be what material to make the stepladder out
of.

Well, that and not getting tired on the climb up.

John Savard

So, who gets the Moon permanently stationed above them ?

I can see people for it and against it both.

Lynn


--- MBSE BBS v1.0.8.4 (Linux-x86_64)
* Origin: A noiseless patient Spider (3:633/280.2@fidonet)

On Mon, 25 Mar 2024 14:42:19 -0500, Lynn McGuire
<lynnmcguire5@gmail.com> wrote:

So, who gets the Moon permanently stationed above them ?

I can see people for it and against it both.

The Land of Aweful Shadow might do interesting things to the weather.


--
Joy Beeson
joy beeson at centurylink dot net



--- MBSE BBS v1.0.8.4 (Linux-x86_64)
* Origin: A noiseless patient Spider (3:633/280.2@fidonet)

In article <0glovitdrp0ch6e3fm62095n0e256l13ps@4ax.com>, psperson@old.netcom.invalid says...

On Wed, 20 Mar 2024 14:03:02 -0500, Lynn McGuire
<lynnmcguire5@gmail.com> wrote:

xkcd: ?Moon Landing Mission Profiles?
https://xkcd.com/2909/

Explained at:

https://www.explainxkcd.com/wiki/index.php/2909:_Moon_Landing_Mission_Profiles

Moving the Moon closer would make a great space station and vacation spot.

Until it broke up and then rained on the Earth for hundreds of years.

And the stepladder suggestion seems to presuppose that the Moon is
both very close to the Earth and yet stationary relative to the Earth,
which might be harder to achieve then just contracting the orbit.

Or do it from a small boat like they used to have in the
old days - "The Distance of the Moon" by Italo Calvino,
found in the collection Cosmicomics (highly recommended).


--- MBSE BBS v1.0.8.4 (Linux-x86_64)
* Origin: A noiseless patient Spider (3:633/280.2@fidonet)