In Leonardo da Vinci, biographer Walter Isaacson notes that da Vinci was fond of riddles, including this one: Winged creatures will support people with their feathers. This is part of a complete episode.
A wet dress rehearsal is a run-through of all the processes required before a rocket launch, up until, but not including, liftoff. What makes this simulation wet is that the rocket’s fuel tanks are filled, then drained once the countdown clock...
Ding! In this week’s episode, Mark Twain would be pleased. Reports that it’s the end of the line for the typewriter have been greatly exaggerated. Well, slightly anyway: it’s not the horseless carriage return yet. Martha and Grant...