During World War II ... radar relied on a semiconductor crystal, or "rectifier." Radar worked by sending out a radio wave and analyzing the reflected wave after it bounced off any objects in the air.

Although the devices found during construction work were practice bombs, they can be harmful. Officials said there could be ...

The unexploded ordnance, discovered during a site renovation, were described as “practice bombs” that still carry a charge ...

By Brad Howard Posted on Jul 9, 2018 At some point during the tail end of World War II ... the Air Force fleet. But there were still three squadrons of F-82s stationed in Japan. Their radar ...

Retired Lt. Col. Harry Stewart Jr., one of the last two remaining members of the 355 original Tuskegee Airmen during World ...