Criticism of pseudoscience, generally by the scientific community or skeptical organizations, involves critiques of the logical, methodological, or rhetorical bases of the topic in question.
A+E Networks. The German engineer Felix Wankel, inventor of a rotary engine that will be used in race cars, is born on August 13, 1902, in Lahr, Germany. Wankel reportedly came up with the basic idea for a new type of internal combustion gasoline engine when he was only 17 years old.
Rotary Mower. Rotary mowers appeared 1930s, with versions invented by Power Specialties Ltd and C C Stacy. C C Stacy's version was a round blade that was mounted horizontally on a shaft that's vertical. These mowers made it possible to create the riding mower that was propelled by a combustion engine.udding teamed with a man named John Ferrabee and they built a machine in 1830 that looked very similar to the manual push mowers of today, with a blades attached to a cylinder and a push handle. One of the first of their machines was used to cut the lawn in Zoological Gardens in Regent's Park.