John Southern (engineer)
Encyclopedia
John Southern was an engineer who co-invented the indicator diagram with his employer, James Watt
, in 1796.
James Watt
James Watt, FRS, FRSE was a Scottish inventor and mechanical engineer whose improvements to the Newcomen steam engine were fundamental to the changes brought by the Industrial Revolution in both his native Great Britain and the rest of the world.While working as an instrument maker at the...
, in 1796.