involves a wheel(s). From tiny watch gears to cars and airplane engines, the principle is the same. These days, we humans constantly use wheels, but not many people know about the history of it. Now you do, though. The main enduring contribution of the wheel is/was faster movement.

Bibliography:
World History Societies of the Past:
Osborne, K. O. (2005). World history societies of the past. (2 ed., p. 65). Winnipeg, MB Canada: Portage & Main Press.
Picture of Wheel:
Dude, W. D. (Producer). (2006). The wheel: A representation of an ancient wheel. [Web Graphic]. Retrieved from http://www.wisedude.com/inventions_discoveries/wheel.htm
THE END!
I agree that the wheel was a really important inventiaon ^_^
ReplyDeletegood job! :) I did the wheel as well!!
ReplyDelete