After more than three centuries, a geometry problem that originated with a royal bet has been solved. Imagine you’re holding two equal-size dice. Is it possible to bore a tunnel through one die that’s ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. “Scientists just discovered a new shape” makes for a great ...

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 ...