Jaffe on Space Solar; 2 years later

https://www.businessinsider.com/missions-experiments-for-space-force-mysterious-x-37b-space-plane-2020-5 “There have been very important changes recently that have made it a lot more compelling and urgent that we investigate this carefully.” “It’s been recognized even as early as the sixties that this is definitely technically feasible, there’s no violation of the laws of physics-” “-at least ten years and all told between R&DContinue reading “Jaffe on Space Solar; 2 years later”

Open Letter to Bezos

From https://history.nasa.gov/SP-4404/ch10-5.htm [200] Fig. 51. Cross-section of an injector used in experiments with an 89-kN rocket engine using liquid oxygen and regeneratively cooled by the liquid hydrogen. A lightweight design, the injector was a converging showerhead type. Measured performance was 93 percent of theoretical. From Tomazic, Bartoo, and Rollbuhler, NASA TMX-253, Apr. 1960. The yearContinue reading “Open Letter to Bezos”