You’re hurtling down your favorite highway, foot planted on the accelerator, engine playing its sweet song of mechanic ...

Radar technology is mainly known for generating weather data and for the surveillance of aircraft. Less well known are its applications in the study of migratory birds, bats, and insects, which ...

Radar worked by sending out a radio wave and ... (Germanium was used to make the first working transistor five years later.) Scientists also learned new techniques on how best to grow and dope ...

The Doppler principle was discovered in 1842 by an Austrian physicist named Christian Johann Doppler and has been used to measure speed since 1948. The police radar transmits a signal at the target at ...