According to his own account, Otto von Guericke completes his book Experimenta Nova (ut vocantur) Magdeburgica de Vacuo Spatio, detailing his experime...

According to his own account, Otto von Guericke completes his book Experimenta Nova (ut vocantur) Magdeburgica de Vacuo Spatio, detailing his experiments on vacuum and his discovery of electrostatic repulsion.