It is an old trope in submarine movies. A sonar operator strains to hear things in the ocean but dares...
doppler
Radio waves travel fast, and they can bounce, too. If you are able to operate a 25-meter dish, a transmitter,...
The Dwingeloo Radio Telescope has successfully bounced a radio signal off Venus and back to Earth. Transmitting at 1299.5 MHz,...
At the time of its construction in the 1950s, the Dwingeloo Radio Observatory was the largest rotatable telescope in the...
Pretty much every modern car has some driver assistance feature, such as lane departure and blind-spot warnings, or adaptive cruise...
Nathaniel Frissell, Ph.D. (W2NAF), associate professor physics and engineering at The University of Scranton was recently awarded a grant of...
