The smallest radio in the world

US scientists have created a special radio carbon nanotube. This radio is about 100 billion times smaller than the world's first radios. Made of a single carbon nanotube - as small as one tenth of a millimeter of human hair,

Carbon nanotube. US researchers have created a radio with a single nanotube, one-tenth of a millimeter in diameter. (Photo: blogs.chron.com)

Professor of physics, Alex Zettl of the University of California at Berkeley, says the nanowire is now configured as a receiver, but it is also capable of functioning as a transmitter. In addition, it can also be used for mobile phones, micro-devices that can sense the environment and transmit information over radio signals.

In an article in the Nano Letters magazine, the team states: "This nanotube-based radio will open up entirely new applications, such as radio-controlled devices as small as possible. can exist in the bloodstream '.

The only carbon nanotube in this radio acts as an all-in -one antenna.

It is both a wave detector, a sound amplifier, and a modulator for both AM and FM. In normal radios, it is necessary to have separate components to perform each of these functions.

Quang Thinh