----- Original Message -----
From: "John D. Giorgis" <[EMAIL PROTECTED]>
To: "Brin-L" <[EMAIL PROTECTED]>
Sent: Monday, March 11, 2002 6:54 PM
Subject: Towers of Light


> Just saw the Towers of Light come on-line.
>
> Some questions:
>
> 1) Are they visible from space?    It certainly didn't look like it from
> the footage I saw (as opposed to the artists rendetions released
beforehand
> which looked like they would be visible from Alpha Centauri. ;-)
>

The press release said it was 88 searchlights.  It doesn't seem to be that
much.


> 3) *IF* they towers of light were visible from space, would they count as
> the second man-made object visible from space?   (I've heard, which come
to
> think of it may just be an urban legend, that the Great Wall of China is
> the only man-made object visible from space.)
>

It depends on what one calls an object.  Clearly city lights are visable
from space.  If it has to be one thing, an H-bomb is certainly visable from
space.

Dan M.

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