During World War II, battles were won by the side that was first to spot enemy airplanes, ships, or submarines. To give the Allies an edge, British and American scientists developed radar ...

Although we think of air-to-air radar as a relatively modern invention, it first made its appearance in WWII. Some late war fighters featured the AN/APS-13 Tail Warning Radar to alert the pilot ...

Less well known are its applications in the study of migratory birds, bats, and insects, which initially showed up as "phantom signals" on the radar screens during World War II. Aa Aa Aa Many ...