So very few words on Richard Feynman

Not only a Nobel laureate on quantum electrodynamics.


The Feynman diagrams are like cartoons that can help solve very difficult equations. See his lectures on YouTube.


Apart from being one of the best theoretical physicists he was into electronics too of course.


He wrote a paper on electron tube amplifier frequency response back in Los Alamos days.


And since a kid he was into radios with electron tubes and how they operate. In his biography he describes repairing a radio by thinking a lot about it before he touched it. He then decided that all needed was to swap electron tubes. (This must be on the book You're are joking Mr. Feynman?) he was asked tea or coffee on the airplane and while he was thinking of other things he replied "both".


Here is Richard Feynman explaining light:


https://m.youtube.com/watch?v=FjHJ7FmV0M4


The Feynman lectures on Physics is The Book. It even explains how the basic capacitor and inductor equations are derived from Maxwell's equations. What could be better (than practical experience)!.


(Note: inductors can be very dangerous devices. Especially large inductors behave like a train moving fast. The train wants to keep its velocity constant. The inductor wants to keep the current through it constant. Just as tons of Kgf is needed to stop the train abruptly so thousands of volts are needed to stop abruptly a DC current flowing in an inductor. Or reversely if the current is stopped abruptly by disconecting the circuit, thousands of volts appear for a short time by induction (reaction to change) at the inductor terminals. When experimenting with electricity as with anything all safety precautions should be followed meticulously.)