Archive for October, 2009

I Need Perspective

Tuesday, October 27th, 2009

A lesson in scale: If the Earth was the size of a ping pong ball, the Sun would be about fourteen feet in diameter, approximately five football fields away (488 yards). The speed of light would be 2.1 mph. The nearest star, Alpha Centauri, would be about 75,000 miles away.

Speed Limits

Friday, October 9th, 2009

I’m sitting still in my chair. The Earth beneath me is rotating at 1000 mph and is circling the sun at 65,000 mph. The solar system moves around the galaxy center at 600,000 mph and the galaxy is speeding through the Universe at 1,000,000 mph. Traveling without moving. All mileages are estimated and your results may vary.