cool picture of a spacewalk: ‘At about 100 meters from the cargo bay of the space shuttle Challenger, Bruce McCandless II was further out than anyone had ever been before.’
December 20, 1909. “Boys working in Arcade Bowling Alley, Trenton, New Jersey. Photo taken late at night. The boys work until midnight and later.” Photograph and caption by Lewis Wickes Hine.
‘Circular slide rules manufactured to calculate various effects and time lengths of a post nuclear landscape were once fairly common items.’ For when your town has been bombed and you want to predict the probability of Severe Vehicle Displacement.