Pioneering observations with the National Science Foundation's giant Robert C. Byrd Green Bank Telescope (GBT) have given astronomers a new tool for mapping large cosmic structures. The new tool ...

The application of a new technique for injuries of the cruciate ligament in the knee, involving the use of bipolar radio-frequency plus heat, has proved to be 90% effective in cases and shortens the ...

Scientists have devised a new technique for finding and vetting possible radio signals from other civilizations in our galaxy — a major advance in the search for extraterrestrial intelligence (SETI) ...

Frequency Division Multiple Access (FDMA) is used for standard analog cellular radio systems. Each user is assigned a discreet slice of the RF spectrum. Therefore, only one user per channel is ...

Radio frequency (RF) refers to the part of the electromagnetic spectrum where electromagnetic waves can be generated by alternating current fed to an antenna. It spans from around 3 kHz to 300 GHz. RF ...