# kathy (blogs) — RSS Amplifier Recent posts from the 2 feeds in the RSS Amplifier directory that cover kathy. Page: Feed: --- ## [Misconceptions in Deriving the Poynting Vector: History and Physics](https://kathylovesphysics.com/misconceptions-in-deriving-the-poynting-vector-history-and-physics/?utm_source=rss&utm_medium=rss&utm_campaign=misconceptions-in-deriving-the-poynting-vector-history-and-physics) _2025-03-21 · Kathy Loves Physics_ Before I get started, I feel that I should warn you that this video is VERY fast and dense with high level physics. I basically go through the physics as if you were students in an advanced physics course on Electricity and Magnetism at an elite university. I am not saying that to discourage anyone \[ \] The post Misconceptions in Deriving the Poynting Vector: History and Physics appeared first on…