1. From 1941 1945, many different microwave radar types were developed in America. 2. The USAAF outfitted its first two microwave radar equipped B-24s in September 1942. 3. They created a radical new design, the cavity magnetron, that made microwave radar possible. 4. FINDER uses microwave radar to detect breathing and pulses. 5. In short order, the secret of making successful magnetrons was discovered, and microwave radar development started. 6. This low-cost microwave radar technology was developed at the Lawrence Livermore National Laboratory in the 1990s. 7. Microwave radar absorbers were researched in the 1980s and 1990s as applications for artificial chiral media.8. In 1942 Gordy joined the MIT Radiation Laboratory where he worked on the development of microwave radar . 9. With assistance from the NTRI and Yoji Ito, the ONATD also developed Japan's only airborne microwave radar . 10. This was done; the technological obstacles were gradually overcome, and a working microwave radar set was produced.