home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!darwin.sura.net!mips!think.com!Think.COM!moravec
- From: moravec@Think.COM (Hans Moravec)
- Newsgroups: sci.physics
- Subject: Re: Blue hawks (was Blue Sky)
- Date: 29 Jul 1992 19:54:51 GMT
- Organization: Thinking Machines Corporation, Cambridge MA, USA
- Lines: 20
- Distribution: world
- Message-ID: <156t2cINN2ff@early-bird.think.com>
- References: <10018@vice.ICO.TEK.COM> <1852@snap> <1128@kepler1.rentec.com> <1992Jul29.180428.29756@murdoch.acc.Virginia.EDU>
- NNTP-Posting-Host: turing.think.com
-
- In article <1992Jul29.180428.29756@murdoch.acc.Virginia.EDU>, crb7q@kelvin.seas.Virginia.EDU (Cameron Randale Bass) writes:
- |> In article <1128@kepler1.rentec.com> andrew@rentec.com (Andrew Mullhaupt) writes:
- |> >In article <1852@snap> paj@uk.co.gec-mrc (Paul Johnson) writes:
- |> >
- |> >>Active illumination is not an option available to eagles.
- |>
- |> In fact, it is my guess that the most inexpensive set would cost many
- |> tens of thousands of eagle-years labor, imposing large weight and
- |> aerodynamic penalties, and a whole bunch of standing around waiting
- |> for radar to be invented...
-
- I remember a PBS (NOVA, I think) program on wartime camouflage, where a
- British WWII daylight bombing raid was hidden (from fighters and
- ground fire) by very bright lights mounted on the bombers. It wasn't
- necessary to cover the whole aircraft surface: just to generate enough
- light to make the total brightness about the same as unobstructed sky.
-
-
- -- Hans Moravec
-
-