The Cosine Rule states that the square of one side is equal to the sum of the squares of the two other sides minus twice the product of the two other sides with the angle between them.

The pitch circle of a helical gear is larger compared to a spur gear by the cosine of the helical angle ... The general requirement for two non-profile-shifted helical gears to mesh is that the angle ...

When an electric current passes through some materials, it generates a voltage perpendicular to the direction in which the ...

The image of Luke Skywalker gazing wistfully across the desert of Tatooine while a pair of “suns” set on the horizon is among ...

A strange new planet has been found circling two stars at a right angle — like something out of sci-fi. It’s the first solid evidence of a so-called polar orbit around a binary system. Credit: ...

For describing directions, faces, edges, and corners the library provides a set of shortcuts all based on combinations of unit direction vectors ... average of the anchor directions of the two faces ...