Replies

To: null and void

If it were scaled down to the size of a typical ball bearing, it would be more perfect than the best commercially available ones.

Hm...I've seen that alleged before, but...

Taking out the oceans, the difference between the highest point on Earth (Mr. Everest) and the lowest (Mariana Trench) is about 13 miles...that's roughly one part in six hundred as compared to the Earth's diameter.

http://en.wikipedia.org/wiki/Ball_%28bearing%29

As I read the chart, the highest grade ball bearings (Grade 3), which have a diameter of up to 2 inches, have a maximum variation in diameter of 0.000003 inches...which is a heck of a lot smoother than the Earth, being a variation of only one part in 600,000!

61 posted on 07/23/2013 9:38:06 PM PDT by Kip Russell (Be wary of strong drink. It can make you shoot at tax collectors -- and miss. ---Robert A. Heinlein)

Hmmm. Good to know. Thanks!

64 posted on 07/23/2013 9:44:15 PM PDT by null and void (Republicans create the tools of oppression, and the democrats gleefully use them!)

Hey Kip, is you a scientist fella, or does ya just read about ‘em?

65 posted on 07/23/2013 9:49:34 PM PDT by RedHeeler

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