Black holes are the result of absolute gravitational collapse of a massive body: a point of hypothetical infinite density surrounded by an event horizon. At that horizon time is frozen and the fabric of space itself cascades inwards at...

Paul Andersen explains how objects interact when touching and at a distance. Electromagnetic forces are very important when objects are touching and fields explain both electromagnetic and gravitational forces. The strong and weak...

Quantum theory solved many problems with classical theory - the photoelectric effect solved by Einstein, atomic model solved by Niels Bohr. But quantum theory had a high price - determinism. it introduced...

In this episode, we focus on the change in magnetic flux and the emergence of back electromotive force (emf). Follow along as we dissect the side view of a current-carrying wire loop rotating in a magnetic field. Unravel the concept of...

By the end of this learning object, the student will be able to: Summarize the main points of the lesson.28730