Around the year 1900, cars and trucks began to share the road with horses and people. They usually kept to the right (or left in the British Empire, Japan, and Sweden), but there were no lights at ...

First, my monthly reminder: There are no toxic plastics, none of them. Our materials are safe and do far more good for the environment than harm. When you meet anyone who thinks otherwise, try to find ...

Extrusion is a process used for creating a product (an extrudate) by forcing a material through a die or an orifice to form a shape, or alternatively an extruder is used to produce semi-finished or ...