This is one of the two most perfect spheres ever. Exactly one kilogram—Imperial units be damned and forbidden forever—smooth to the nearest 0.0000000003 meter (1.18110236 × 10-8 inches,) and round to within 0.00000005 meters (1.96850394 × 10-6 inches.)
They were made using silicon by metrologists from the by Australia’s Commonwealth Scientific and Industrial Research organisation. [Makezine]
Peter
Thursday, July 16, 2009 at 9:22 AMNice balls
Adam
Thursday, July 16, 2009 at 9:30 AMas long as they’re not touching
MDolley
Thursday, July 16, 2009 at 10:17 AMthat’s why one sits lower than the other.
chuck bulimic
Thursday, July 16, 2009 at 9:46 AMOne must wonder why after damning imperial measurements to all eternity , you then proceed to quote them ?
Kif
Thursday, July 16, 2009 at 10:49 AMO…..K. Why?
hugh
Thursday, July 16, 2009 at 10:57 AMviva la metric
DcB
Thursday, July 16, 2009 at 2:28 PMThey’re round, but not chocolate, or salty..