Here is another way that same nano technology is being used...
-- Curt Phillips W4CP <[EMAIL PROTECTED]> wrote:
The Incredible Shrinking Radio Thu Oct 18, 1:15 PM ET
A new wireless radio receiver thousands of time slimmer than a human hair could
lead to radios far smaller than those of today.
Researchers at the University of California, Irvine, created a carbon nanotube
"demodulator" that can translate AM radio waves into sound waves. In a recent
demonstration, the researchers used it to transmit classical music wirelessly
from an iPod to a speaker several feet away.
Carbon nanotubes are man-made microscopic mesh rods composed entirely of carbon
atoms. Their incredible strength and other unique properties have led
scientists to investigate them for use in everything from nano-electronics and
space elevators to scaffolds for growing customized bone.
A demodulator converts an AM radio signals into electrical signals that can be
fed into a speaker to produce sounds. The new device is about 100 times smaller
than similar technology used in commercial wireless radio receivers, said study
team member Peter Burke. FULL STORY:
http://news.yahoo.com/s/livescience/20071018/sc_livescience/theincredibleshrinkingradio
FYI. 73,Curt W4CP Curt Phillips, CEM CMVP
W4CP ex-KD4YU; WB4LHI
ARRL Life; QCWA; SKCC; NASWA
Tar Heel Scanner/SWL Group
WMPM AM1270- Coffeetime Sat. Mornings
Raleigh, NC
w4cp<at>arrl.net--
Success is never final, failure is never fatal, courage is all that matters.
-Winston Churchill__________________________________________________
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From:Robert Hill <[EMAIL PROTECTED]> | Block Sender
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Subject:So You Won't Turn Off Your Cell Phone?
Date:Wed, Jul 12, 2006 09:48 AM
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Date: Wed, 12 Jul 2006 09:48:10 -0400
From: Robert Hill <[EMAIL PROTECTED]>
Subject: So You Won't Turn Off Your Cell Phone?
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So You Won't Turn Off Your Cell Phone? Don't
Worry The Paint Will
Nanotubes, those hollow cylinders that are oh so
tiny but oh so useful, no doubt will make great
contributions to mankind someday. We could wind up
with semiconductor technologies that make today's
deep-submicron devices look bloated. Imagine what
that could do for implantable medical diagnostic
systems and prostheses. Such breakthroughs may
rival in importance one development that could
come even soonerblocking the ringing of cell
phones in inappropriate places like movie theaters
and concert halls.
The nanotubes that may make this wondrous feat
possible arent the manufactured carbon cylinders
commonly used in the electronics industry.
Instead, theyre naturally occurring
alumina-silicate tubes found in halloysite clay.
NaturalNano Inc., a nanotechnology and advanced
materials company that looks for ways to
commercialize naturally occurring nanomaterials,
has developed a metalization technique to coat the
outside or fill the inside of the halloysite
nanotubes to block, or greatly reduce, RF signals.
The Rochester, N.Y., company says that
experimental trials of a spray-on coating embedded
with the copper-filled nanotubes demonstrated a
significant ability to do just that. The passive
technique doesnt involve jamming, which is
illegal in the U.S. It presumably would be much
less expensive than conventional RF shielding
methods that require labor-intensive installation
of costly conductive shielding material,
especially in a retrofit situation.
To complement its technology, NaturalNano recently
licensed technology from AMBIT Corp., of Ashland,
Mass., that would let building managers
selectively override the RF blocking. An indoor
antenna would pick up the cell-phone or other
signals and send them through a filter to an
outdoor antenna for broadcast. Received signals
would go through a reversed process. Building
management could turn the AMBIT system on and off
as well as control the frequencies allowed in and
out.
Imagine that a paint that could block cell-phone
signals from disturbing a movie you just paid
eight bucks or more to see, or a show or concert
that you may have paid $100 or more to attend.
Instead of a slide that reminds people to turn off
their cell phones, theater operators could put up
a message that tells people their cell phones
wont work during the movie. Fantastic!
Of course, youll see lots of complaints. While
the First Amendment doesnt give you the right to
falsely yell fire in a crowded theater, surely the
Constitution gives you the right to receive a
phone call. Ive seen the bleatings already. One
guy on the Internet said his child had a serious
allergic reaction and his babysitting grandmother
had to call the theater. Far be it from me to
criticize someones mother. But if your mother or
any other sitter cant handle such a problem,
should she be alone with the child anyway? And if
it is an emergency, could you get back to your
home quicker than the EMTs could?
But what about doctors who need to receive calls
summoning them to the hospital to save a life?
Hey, I have great respect for doctors. I must. Im
putting enough of their kids through college. But
doctors arent on call every night. When they are,
they shouldnt go to the movies. And if theres an
emergency inside the theater? Simple. Wire up the
override system to automatically open up all
frequencies if an alarm sounds.
Michael Riedlinger, president of NaturalNano,
stresses that his company isnt a paint
manufacturer. But it is open to working with
companies that could commercialize this RF
shielding technique. The fact that NaturalNano
licensed the AMBIT technology is ample evidence of
that.
Riedlinger also emphasizes that the companys
scientists have identified more than 200
applications for the halloysite nanotubes, which
have inside diameters of about 20 to 40 nm.
Ultracapacitors may not be far off. And depending
on what material theyre filled or coated with,
the nanotubes could be used for extended-release
delivery of anything from drugs to fragrances to
sunscreen to pesticides, he says.
I'm sure that many of the other 199 or so
applications will greatly improve the human
condition in some way. But the application that I
hope is commercialized first is the one that
prevents theatergoers everywhere from ever having
to listen someones idea of a cute ring tone.
NaturalNano
www.naturalnano.com
AMBIT Corp.
www.ambitcorp.com
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