Since different sorts of living tissue contain different amounts of hydrogen, the application of sufficient computing power to the signal can turn it into a clear image of the body's interior.
Ambient radio waves have largely been ignored as a potential power source until recently, because the power of a broadcast radio signal rapidly decreases with distance.
Picks up a satellite signal within seconds of power up and comes pre-loaded with maps of the continental US, Hawaii, Alaska and Puerto Rico.
Their first test in October 2007 was a success: An all-electric car plugged in at the University of Delaware and rigged with communication software responded to a signal from PJM for a sudden burst of power to help balance supply and demand on the grid.
Perth also reduced the power of the transmission to make it more like the sort of faint X-band signal the craft would expect to hear at Mars.
The authority will shut down power to its signal system if it appears that large amounts of water have entered the tunnels, to prevent the salty water from doing added damage to sensitive electronic relays.
Alcatel, however, will use a small radio transmitter concealed in the battery cover of the phone to transmit a coded low-power signal to the belt clip to tell it when to vibrate, a company spokesperson said after the press conference.
CNN: Technology - Alcatel personalizes vibrating phone alerts
And, to add another level of complexity, individual phones will adjust their transmitter power based upon the received signal strength from the MicroCell.
FORBES: Some AT&T MicroCell Users Are Experiencing Problems With iPhone 5 and iOS 6
In addition, faster signal processing and lower power consumption can also be achieved through the use of leading process for the chip containing the circuits.
ENGADGET: Sony's new cameraphone CMOS jams bigger gear into the same space (video)
On the face of it, these contrasting US and Russian announcements seem to signal that geopolitics have reverted to the Cold War model of two superpowers competing for global power by, among other things, assisting their proxies in fighting one another.
As an infant, I displayed a variety of facial expressions to signal my moods, pointed at objects of interest, and bonded with my parents through the power of eye contact.
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