Microsoft
Here are some of the key reasons why you would want to run Unified Access Gateway with DirectAccess.
Berkeley researchers use nanotube to build world's tiniest radio
The device is small enough to be used in human blood stream
November 5, 2007 12:00 PM ETComputerworld - Physicists at the University of California, Berkeley, have built the world's smallest radio out of single carbon nanotube one ten-thousandth the width of a human hair.
Researchers say the tiny radio needs only a battery and a pair of earphones to hook listeners up with their favorite radio stations. But that's not all the new device could be good for.
The radio's tiny size could make cell phones more efficient, or it even could be used in radio-controlled devices that flow through the human blood stream, according to a paper written in part by team leader Alex Zettl, a U.C. Berkeley professor of physics. Zettl also noted that he hopes to use the radio to replace cumbersome devices used today to identify atoms or even measure their mass, since the new radio can pick up on atoms jumping on and off the tip of the nanotube.
"We were just in ecstasy when this worked," said Zettl, in a written statement. "It was fantastic."
The device, which researchers are calling the nanoradio, is currently set up to act only as a receiver but could also work as a transmitter. U.C. Berkeley reported that the nanoradio is 100 billion times smaller than the first commercial radios.
Nanotubes are rolled-up sheets of interlocked carbon atoms that form a tube so strong that some scientists have suggested using a nanotube wire to tether satellites in a fixed position above Earth, according to Berkeley researchers.
In the nanoradio, one carbon nanotube serves as an antenna, a tuner, an amplifier and even a demodulator picking up both AM and FM frequencies -- an all-in-one radio. These are separate components in a standard radio.
A Berkeley release explained that the nanoradio uses a new method to detect radio signals: It vibrates thousands to millions of times per second in tune with the radio wave.
Read more about mobile and wireless in Computerworld's Mobile and Wireless Knowledge Center.
nanotube
Additional Resources
Microsoft
Review how one energy firm tightened protection and simplified IT work using business-ready security solutions.
Sybase
In this white paper, IDC analyzes the role of next-generation mobile enterprise platforms as organizations seek a more strategic deployment of mobile solutions.
Learn the important issues you must consider before starting your next mobility initiative. Get your mobility white paper from IDC now, compliments of Sybase.
Learn the important issues you must consider before starting your next mobility initiative. Get your mobility white paper from IDC now, compliments of Sybase.
White Papers & Webcasts
Accelerating Your Mobile Workers: Controlling the Uncontrollable
Today's workforce is truly mobile. Unlike the managed environment of the office LAN, remote users face many challenges to being productive while out...
eGuide: Enterprise Security
Smart Security Strategies for 2010. Read now!
Managing Laptops Outside the Office
Learn how you can reduce costs by tracking mobile computers no matter where they are located.
How to Improve Remote User Satisfaction and Maximize ROI by Using SSL VPNs
Download this white paper today!
Mobile U Webinar
Watch Now!
The New Mobile Order
Download Now
4G Ahead Video Program
Uncover the features and benefits of the two leading 4G technologies for enterprises considering future deployment.
WAN Application Delivery for Executives
Learn how to simplify server and application administration without creating performance problems for distributed users.
Horror stories: Managing IT Across Multiple Locations
How one extra sharp IT manager eliminates daily agony, hassle and repetition.
Computerworld Reports
Sign up to receive updates on the latest Mobile and Wireless resources
