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 ...

In the chaos of World War II, one secret invention revolutionized warfare—the VT (Variable Time) fuze. This groundbreaking ...

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 ...