Wikipedia article of the day for November 14, 2020
Wikipedia article of the day is Project Excalibur. Check it out: https://ift.tt/1tkargr Summary: Project Excalibur was an American Cold War–era research program to develop nuclear-device-powered, space-based X-ray lasers as a ballistic missile defense. X-ray lasers were conceived in the 1970s by George Chapline Jr. (pictured with George Maenchen) and further developed by Peter L. Hagelstein, both […]