And the Earth is smoother than billiard ball: http://blogs.discovermagazine.com/badastronomy/2008/09/08/ten-things-you-dont-know-about-the-earth/ http://blogs.d

And the Earth is smoother than billiard ball: http://blogs.discovermagazine.com/badastronomy/2008/09/08/ten-things-you-dont-know-about-the-earth/ http://blogs.discovermagazine.com/badastronomy/2008/09/08/te...