Materials were written for an entire year's course in geometry in which transformations were used to develop the concepts of congruence, similarity, and symmetry, as well as being a vehicle for proof.

Some solid metals exist in various structural forms, a phenomenon known as polymorphism. Iron, for example, adopts one type of cubic lattice (α-iron) at room temperature, but transforms into another ...

A nuclear engineer reacts to Alan Becker and the mind-bending visuals of Animation vs. Geometry. This video breaks down the ...