Riders of a certain age will remember the hours spent trotting over heavy, wooden cavaletti while learning to ride. Although they’ve been out of fashion for a while, the humble cavaletti can provide ...

This video is an introduction to shear force and bending moment diagrams. What are Shear Forces and Bending Moments? Shear ...

An Introduction to the Study of Stellar Structure By S. Chandrasekhar. (Astrophysical Monographs sponsored by The Astrophysical Journal.) Pp. ix+509.