Charles Babbage invented the Difference Engine because "On June 14, 1822, Charles Babbage proposed the use of such a machine in a paper to the Royal Astronomical Society, entitled "Note on the application of machinery to the computation of astronomical and mathematical tables".[4]This machine used the decimal number system and was powered by cranking a handle. The British government was interested, since producing tables was time consuming and expensive and they hoped the difference engine would make the task more economical."
Why was the lightbulb invented? Why was the steam engine invented? Different questions with the same answer : if the invention was never needed (necessary), it wouldn't have been invented.
Many different car engines have been invented. The first internal combustion engine was invented in 1807. It used a fuel of hydrogen and oxygen. In 1858 the first coal gas fueled internal combustion engine was invented. In 1864 a gasoline fueled engine was attached to a cart.
The Jet engine was invented simultaneously by an Englishman and German, however neither knew of each others work and they both designed a completely different engine. English Sir Frank Whittle invented the radial flow engine, whereas the German Albert Fonó invented the axial flow engine. Both engines were successful, however the axial flow princable is used mostly today.
James Watt invented steam engine & it is invented in 1769
Gottlieb Daimler invented the combustion engine.
In 1698, Thomas Savery invented the engine.
The Newcomen engine was invented in England.
Peter Cooper, invented the American Steam Engine.
John Braithwaite invented the first steam fire engine.
Frederick William lanchester invented the earliest MPFI engine
Andrew J. Beard
Thomas Newcomen invented the early steam engine in 1705.