The pressure angle is the angle the tooth makes with the pitch circle. In this example, the pressure angle is 20 degrees as shown by the red lines. You cannot directly specify the size of a gear. The ...

This file includes redefinitions of the core modules to work with attachment, and functional forms of those modules that produce paths. You can create regular polygons with optional rounded corners ...

Hubble isn’t just famous for its photos, it’s a science powerhouse packed with mind-blowing stats. In this video, we break down some of the wildest numbers behind the telescope that changed how we see ...