## Notation notation notation!

Last time you wrote down an equation you probably used some mathematical symbols to represent operations and objects. Sure, you would say, it does not seem like much. After all, you learnt how to do this at school. But this notation has been developed over the course of thousands of years, and is what allows […]

## The Stern-Gerlach experiment

The experiment carried out by Otto Stern and Walther Gerlach was originally designed to test the “space quantization” theory of Niels Bohr, which got replaced with quantum mechanics soon afterwards. The experiment supported the predictions of the Bohr model of the atom, but really it demonstrated the quantization of angular momentum, and remains an important […]