From: Amara D. Angelica (amara@kurzweilai.net)
Date: Fri May 17 2002 - 01:51:59 MDT
> [mailto:owner-extropians@extropy.org]On Behalf Of Damien Broderick
> a perfect mirror on the outer shell that would reflect all
No, that would be highly detectable and call attention. A better strategy
would be the opposite: a surrounding sphere designed as a perfect "black
body" (a surface or object that absorbs all radiation). A problem with that:
at nearby distances, the sphere would obscure background images and thus
call attention to itself. One way around that is to extend the stealth
aircraft chameleon system into three dimensions: pick up radiation from all
visible objects (that is, visible at all wavelengths) around the sphere and
simulate each object (or radiation source) on the opposite side of the
sphere, varying the opposite-side image at all spherical angles, perhaps
using some variant of a lenticular system that could (automagically) work at
all wavelengths and angles. This assumes all surrounding objects are at
optical infinity and the recon craft is not nearby. The nearby case would
require realtime detection of the craft and real-time generation of spoofed
images with object separation angles based on craft distance.
This archive was generated by hypermail 2.1.5 : Sat Nov 02 2002 - 09:14:09 MST