Show sample as: 72-frame QuickTime VR or 360-frame QuickTime movie loop.
Periodic Table Poster   My periodic table poster is now available!Periodic Table PosterPeriodic Table PosterPeriodic Table Poster
3D3DSilicon nitride ball bearings.
Ball bearings made of extremely hard silicon nitride.
Source: eBay seller irvineman
Contributor: Theodore Gray
Acquired: 28 March, 2009
Text Updated: 29 March, 2009
Price: $4/each
Size: 0.375"
Composition: Si3N4
Silicon