For Johnny - Why It Took So Long to Invent the Wheel
 

Wheels are the archetype of a primitive, caveman-level technology. But in fact, they're so ingenious that it took until 3500 B.C. for someone to invent them. By that time ? it was the Bronze Age ? humans were already casting metal alloys, constructing canals and sailboats, and even designing complex musical instruments such as harps.

The tricky thing about the wheel is not conceiving of a cylinder rolling on its edge. It's figuring out how to connect a stable, stationary platform to that cylinder.

"The stroke of brilliance was the wheel-and-axle concept," said David Anthony, a professor of anthropology at Hartwick College and author of "The Horse, the Wheel, and Language" (Princeton, 2007). "But then making it was also difficult."

http://www.scientificamerican.com/ar...so-long-to-inv

lies and propaganda

That "early" toy, looks pretty suspiciously like Steamboat Willie:winkwink:

steamboat johnny.

two wheels is the only way to fly