Machinist School - Materials Science - Magnetism

Alumni Brother, Thomas Leech, sends the following link .... and MIT review about electromagnetism. Nowadays you can learn from MIT at from home!

http://www.youtube.com/watch?v=js9SLJ2TU2c

It boils down to math, just like machining. You start with a hammer and chisel and, before long, you need to calculate something (calculate something means "take a break from hammering and chiseling").

Pythagoras says......

The good old 3 x 4 x 5 triangle is useful for establishing a square corner and for demonstrating the theory of Pythagoras. Is a triangle thinking inside, or outside, the box?