I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those ...

Learn how to write a vector in component form given two points and also how to determine the magnitude of a vector given in ...

Back in 1948, the journal Physical Review published a paper entitled “Space-Time Approach to Quantum Electrodynamics” by a young physicist named R.P. Feynman at Cornell University. The paper described ...