Sigh.

Jeff Wilson · 12 Jan 2011, 01:03 · from 2011-January.txt.gz

This is the message as the crawl holds it, before anything here touched it. What the conversation shows has been through ingest: transfer encodings decoded, attachments dropped, quote markers repaired, and the archiver’s ? resolved into quotation marks and dashes. Those repairs are judgements and some of them are wrong, which is what this page is for. Email addresses are obscured here as they are everywhere else on the site, so it is before our repairs rather than byte for byte.

From: jwilson at io.com (Jeff Wilson)
Date: Tue, 11 Jan 2011 19:03:43 -0600
Subject: (urth) Sigh.
In-Reply-To: <2E37B24E1FD54583842450135D43A735@jill>
References: <AANLkTimr3BjvHg1wm5=r_VN7-3ogizvQpuR2n1_rGZzV at mail.gmail.com>	<EF609111-1E7B-42EE-94A2-667EA59FF0C4 at gmail.com>
	<2E37B24E1FD54583842450135D43A735@jill>
Message-ID: <4D2CFDEF.40909 at io.com>

On 1/11/2011 6:23 PM, Gerry Quinn wrote:
>
> From: "Ant?nio Pedro Marques" <entonio at gmail.com>
>> No dia 11 de Jan de 2011, ?s 21:05, "Dan'l Danehy-Oakes"
>> <danldo at gmail.com> escreveu:
>>
>>> Urth's sun, still red, is visible in the skies of Blue.
>>
>> Space-time is a strange place. Observers may be looking at their own
>> star system far, far away.
>
> That's not really feasible for stars within a single galaxy - as far as
> I can see you'd have to be in close orbit around a really gigantic black
> hole, which would fill most of the sky.

A single black hole could not do it; by definition, it does not close 
the path of light outside its event horizon. Several in a ring might do 
it , but they would be very noticeable.

If you allow negative curvature of space and time, you can do it easily, 
but that implies interference from above by the Yesodis.

-- 
Jeff Wilson - jwilson at io.com
Computational Intelligence Laboratory - Texas A&M Texarkana
< http://www.tamut.edu/CIL >

An unofficial mirror of a public mailing list · about & removal requests · download the archive · before the list · original archive at urth.net