ASFO 2021–07–10

Gold, copper, value added, and the economy of Chile (with a digression into trains) ; the SpaceShip Two concept of operations, and Tim Pickens’ hybrid rocket motor ; the Karmann Line and the definition of “Outer Space” ― no, “explosive decompression” is not a thing spacemen have to worry about, unlike deep–sea divers ; and intellectual blind spots.

ASFO 2021–06–19

More about the Will of God ; more on means versus ends, and the question of why I see a most instructive contrast between nuclear energy and “renewables”, but a vital conflict between nuclear and fossil fuels ; a brief description of the (non–) problem of nuclear wastes ; and a thumbnail sketch of the potential of space solar (pops ’em like popcorn!).