The earths circumference is 40,075km, and does one revolution per - TopicsExpress



          

The earths circumference is 40,075km, and does one revolution per day. This means that at its surface we are actually moving at 1670km/h - close to 4 times the speed of sound. Yet because the earths rotation speed is neither accelerating or decelerating - we are left with the incorrect impression that when we choose not to move we are still. Im sure this is a wonderful metaphor for something. (Just so you know how weird I really am, I thought of this when selecting the RPM on the drill press for a larger than usual diameter drill bit)
Posted on: Thu, 10 Jul 2014 07:23:13 +0000

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