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, ...

We know that whatever printer we purchase from the market, it prints in black & white or color. Color ink cartridge normally has cyan, yellow, and magenta inks. It uses these inks to mix the user’s ...

The Library Company reading room on Juniper Street in Philadelphia c. 1935, one of the group’s main locations from 1880 to 1935. The Library Company of Philadelphia Founding father Benjamin Franklin ...