Read an interesting article that says the greatest invention (Making fire was the oldest) by Man was the WHEEL ...... some 6,000 years ago, possibly by the Sumerian culture! :think: It took another 3,000 years before a major improvement was made by the Orient in 1200 BC, ie the invention of the SPOKE for the wheel.
Today the wheel is at the heart of virtually every mechanical process .....
Today the wheel is at the heart of virtually every mechanical process .....