From: Alfio Puglisi (email@example.com)
Date: Fri Sep 03 2004 - 12:52:47 MDT
On Fri, 3 Sep 2004, Mike wrote:
>It's been done with clothing in Japan.
If I understand correctly, this is a much simpler: it's a photograph pf
the background project on a reflective piece of clothing. Really cool to
see, but useless for invisibility.
>> -----Original Message-----
>> From: firstname.lastname@example.org [mailto:email@example.com] On Behalf
>> Of Eugen Leitl
>> Sent: Friday, September 03, 2004 5:44 AM
>> To: firstname.lastname@example.org
>> Subject: Re: Book Review "Nano" No spoilers
>> On Fri, Sep 03, 2004 at 03:58:06AM -0700, Thomas Buckner wrote:
>> > --- Keith Henson <email@example.com> wrote:
>> > > In another place Marlow describes an invisible
>> > > aircraft, one that has light
>> > > emitters on it that make the surface of the
>> > > aircraft look like the
>> > > background and the story line makes use of the
>> > > invisible properties of the
>> > > aircraft. It is reasonable to assume that we
>> > > could eventually have
>> > > aircraft surfaces that can display the view
>> > > blocked by the aircraft. But
>> > > if you think about it, to do this you have to
>> > > know exactly what direction
>> > > you want to fool someone. Otherwise, you don't
>> > > know what background to
>> > > present. This is applying pre high school
>> > > geometry and a bit of logic.
>> You have to fake the wavefront in the VIS wavelenght range,
>> which asks for phased array optics and
>> sensors, and a computer to drive them.
>> All of this is not very difficult with bulk nanoelectronics.
>> This will work in VIS, but it will be impossible to
>> sustainably prevent a huge emission in far IR.
>> Can you dissipate the power anisotropically, anyone knows?
>> > This has been done, primitively. Some WW2
>> > antisubmarine aircraft had rows of light bulbs on
>> > the leading edge of the wings which caused the
>> > aircraft to blend into the background light of
>> > the sky until it was too close for the sub to
>> > dive. It did work.
>> Eugen* Leitl leitl
>> ICBM: 48.07078, 11.61144 http://www.leitl.org
>> 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE
>> http://moleculardevices.org http://nanomachines.net
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