Introducing geometry, angles and shapes through a spoof house building show and an animation game show.

A technician often has to sketch or design ductwork and other parts of an HVAC system. This means working with lines, angles, and other shapes. This article shows you how to draw and work with these ...

Adjusting the rear pinion angle on a leaf-spring-equipped vehicle is as easy as adding some pinion-correction wedges under your leaf pack. Six degrees is about the most angle you want to run with ...

Crows in a lab were able to distinguish shapes that exhibited right angles, parallel lines, and symmetry, suggesting that, like humans, they have a special ability to perceive geometric regularity.