Hallowe’en is still two weeks away, yet the stores are full of pumpkins, real and plastic, and other orange-and-blacks (Princeton colors). Here’s our chance to deal with death and still have fun. Or ...

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 ...