World's Most Perfect Pair of Balls—Yes!

Illustration for article titled World's Most Perfect Pair of Balls—Yes!

This is one of the two most perfect spheres ever. Exactly one kilogram—Imperial units be damned 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).

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Illustration for article titled World's Most Perfect Pair of Balls—Yes!

They were made using silicon by metrologists from the by Australia's Commonwealth Scientific and Industrial Research Organization. [Makezine]

DISCUSSION

They're going to be sorry when Chuck Norris shows up to reclaim these.