The April 1993 TM magazine published a photograph of the first Russian gravitational plane. It was built by the famous Soviet writer and entomologist Viktor Stepanovich Grebennikov. Yes, it's a joke. But the followers of this entomologist in 2014 made a real model of this mechanism, and they...
Looking up about BAC's MUSTARD project has reminded me of Project Greenglow (its in the JBIS Space Chronicle edition looking at UK Spaceplanes).
What are people's views on Greenglow?
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