Changing up your hair color can be an exciting way to refresh your look, but once you achieve that perfect shade, the next step is ensuring it lasts. While tossing out an old wardrobe can be costly, ...
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 ...
GIA researchers examined it in 1988. Photo: Chip Clark, courtesy of Smithsonian Institution. Colored diamonds are in the spotlight. They’re routinely breaking records at auction houses. They make ...