In our mind’s eye, the universe seems to go on forever. But using geometry we can explore a variety of three-dimensional shapes that offer alternatives to “ordinary” infinite space. When you gaze out ...

Have you recently had your 4x4 lifted and are suffering from a harmonic oscillation that can both be felt and heard? Have you rebalanced your tires or swapped in newly balanced driveshafts only to ...

In this video, I’m breaking down a right-triangle calculation that every welder, fabricator, machinist, metalworker, and ...

Revise the different types of angles and rules for calculating angles. This guide includes interactive activities and a quiz. NEW: Angles in parallel lines Revise alternate, correspondent or ...

Researchers have discovered how plants set the angles of their branches relative to gravity. While the other principle features governing the architecture of plants such as the control of the number ...