Largest deposit of pure black jade, called nephrite, is discovered in China, and it could revolutionize the world of jewelry.

Color gradient filament is fun stuff to play with. It lets you make 3D prints that slowly fade from one color to another along the Z-axis. [David Gozzard] wanted to do some printing with this effect, ...

The Saturday edition of NYT Connections arrives with puzzle #937, serving up a grid that rewards pop culture knowledge and ...