Electricity and magnetism is all around us! - Walter Lewin
72" Electricity and magnetism is all around us. We have electric lights. Electric clocks.
We have microphones, calculators, televisions, VCRs, radio, computers.
Light itself is an electromagnetic phenomenon as radio waves are.
The colors of the rainbow in the blue sky are there because of electricity.
And I will teach you about that in this course. Cars, planes, trains can only run because of electricity.
Horses need electricity because muscle contractions require electricity.
Your nerve system is driven by electricity. Atoms, molecules, all chemical reactions exist because of electricity.
You could not see without electricity. Your heart would not beat without electricity.
And you could not even think without electricity, though I realize that even with electricity
some of you may have a problem with that. [laughter] "
Highlight from Lectures by Walter Lewin
https://youtu.be/x1-SibwIPM4