Robert Boyle invented a vacuum pump & discovered that this does not travel in a vacuum
In a 
stroke Torricelli had not only proved the existence of a vacuum, he had ... By the 
late 1640s this newly discovered vacuum had become the subject of ... Otto Von 
Guericke is accredited with the invention of the first air pump,... [DOC] [TLE] Robert Boyle, Hyperbaric Chambers - A history of hyperbaric ... [PAR] Robert Boyle and the history of Hyperbaric Medicine.