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July 9, 2021 Archives

Friday, July 9, 2021

THE HAPPENING WORLD: Space Tourism Bragging Wars

Posted at 17:04 Permalink

TRACKING WITH CLOSEUPS: Nitrocellulose—It's a Lot More Common Than You May Think

This gives a whole new meaning to “explosive guitar solo”.

When I was a kid, we had some Christmas tree ornaments made of nitrocellulose. After a number of fires, a warning was circulated in the newspapers about how to identify and safely dispose of them.

Posted at 15:14 Permalink

CONTEXT: David Kipping on Black Swan Events in Astronomy

Posted at 14:11 Permalink

CONTINUITY: Postwar Transcontinental Aviation in the DC-3 Era

Posted at 12:55 Permalink

CONTEXT: Olympus Mons

Mars's Olympus Mons is twice the height of Mount Everest above sea level, but so huge that if you were on its slopes you'd barely be aware you were on a mountain. This size, combined with Mars's small radius, means you can't see the summit from the surrounding terrain or the terrain from the summit,

Posted at 12:17 Permalink