Feynman’s Path Integral Formulation Actually Explained (Part 1)

Motivation

When writing a book, one must choose what to emphasize, what to deemphasize, what to cut, and what to mention in passing. Feynman’s path integral formulation didn’t seem to fit into my book in all its glory, as it … Read more “Feynman’s Path Integral Formulation Actually Explained (Part 1)”

Making equations easier to read for normal people

Physicists are abnormal. We read and write in an esoteric language that is readable by other abnormal people who speak different natural languages. That is an odd trait. But after years of uncomfortable studenthood, we start to feel comfortable to … Read more “Making equations easier to read for normal people”

Some physicists don’t understand infinities and infinitesimals

Two infinities and two more infinities

If you are interested in math and science, you probably have heard a fair bit about infinities. There are countable and uncountable infinities with different cardinalities of their sets, which is usually phrased as … Read more “Some physicists don’t understand infinities and infinitesimals”