it was invented when ur mamma was born
RICHARD HOE Will answer soon!
Andrew J. Beard
Felix Wankel
Bob Marley
He invented the Rotary Engine.
Australia
He invented the Rotary Engine.
Mervlyn victor Richardson
he invented rotary steam engine.
Arthur Clifford Howard in 1921
Al-Jazari,a Kurdish engineer, invented the conversion of the up and down piston movement in a cylinder into rotary motion.
The steam powered rotary printing press was invented in 1843 by Richard Hoe. Its innovation was the use of rollers instead of a flat bed and it greatly increased the speed of printing. (example: approx. copies per hour - manual flatbed press 500, steam operated flatbed press 2,000, steam rotary press 20,000) The increased quantity being printed reduced the unit cost and this allowed the owners to reduce the price of newspapers while continuing to make profits.