published on: 2016-07-25 06:51:16
dinosaurspen: Cryptographers Dorothy Du Boisson & Elsie
inventhelp: 5 Things You Didn’t Know Thomas Jefferson Invented.
prokopetz: nebcondist1: prokopetz: I’ve seen this image
enigmaticpenguinofdeath: There’s a fascinating article on
oldworldinventions: 1974: Phone Butler Answering Machine
the-gasoline-station: The First Ferris Wheel from the 1893 World