Papin designs surface-supplied diving bell
Last updated: May 17, 2018 at 2:23 am
[ 1689 ] French physicist Denis Papin designs a surface-supplied diving bell but the technology of the time makes its construction impossible. The diving bell is designed to be completely filled with air and to be lowered all the way to the bottom where the occupant can stand on the substrate. Papin, who later builds a submarine known as the Urinator (1695), also invents the steam digester, the precursor of the pressure cooker and of the steam engine.