From Rocks to Roll.
Chapter 3: As we talked about Wheels last time, the thought grew deeper, no matter how important invention the wheel was, alone it was useless. The wheel is more like the 'Jack of all trades and Master of None'. We have an existence of wheel since early stages of Stone Age, but the use of the wheel as a mode of transportation dates back to 4200-4000 BC. One of the first applications of the wheel to appear was the Potter's wheel, used by prehistoric cultures to fabricate clay pots. The earliest type, known as "tournettes" or "slow wheels", were known in the Middle East by the 5th millennium BC. One of the earliest examples was discovered at Tepe Pardis, Iran, and dated to 5200–4700 BC. These were made of stone or clay and secured to the ground with a peg in the center but required significant effort to turn. True potter's wheels, which are freely-spinning and have a wheel and axle mechanism, were developed in Mesopotamia (Iraq) by 42...