The area moment of inertia (also called the second moment of area) defines the resistance of a cross-section to bending, due ...

You scrambled up a Rubik's cube, and now you want to put it back in order. What sequence of moves should you make?

Most of us have heard of the Bermuda Triangle—but did you know the U.S ... many without a trace. The area includes Area 51, fueling theories of UFOs, secret tech, and paranormal activity.