Why It Took So Long to Invent the Wheel →
jtotheizzoe: Making the wheel was easy. It was the axle system that took forever. In fact, civilization had already developed metal tools before they perfected the wheel. More: The invention of the wheel was so challenging that it probably happened only once, in one place. However, from that place, it seems to have spread so rapidly across Eurasia and the Middle East that experts cannot say...
A new Zogby International Poll shows that 69% of Americans support public school...– Henry Rollins, Teeing Off