Quote:
When Leonardo da Vinci sketched out an impossible invention, fifteenth-century scholars probably put him down. Forget it, Leon. If machines could fly, we'd know about it.
Throughout history, experts tell innovators that their inventions are impossible. A few examples:
* The English Academy of Science laughed at Benjamin Franklin when he reported his discovery of the lightning rod, and the Academy refused to publish his report.
* A gathering of German engineers in 1902 ridiculed Count Ferdinand von Zeppelin for claiming to invent a steerable balloon. (Later, Zeppelin airships flew commercially across the Atlantic.)
* Major newspapers ignored the historic 1903 flight of the Wright brothers airplane because Scientific American suggested the flight was a hoax, and for five years officials in Washington, D.C. did not believe that the heavier-than-air machine had flown.
Perhaps in the 21st century the following inventions will be standard science, and a history student may wonder why 20th-century pundits disregarded them.
