Magnets...how do they work?
We know you're slogging through a Monday morning, post-Halloween candy overdose, so we'll keep it simple today, and let the irrepressibly effusive Shawn lay down the Lenz's Law about magnets and electromagnetism. Shawn covers how magnetism works on an atomic level, discusses the relationship between magnetic fields and electric currents, and shows us how it works with some simple experiments.
Thanks Shawn! If you have any ideas for other basic concepts you'd like to see an upbeat engineer in a bowtie explain on camera (we've already covered licking a 9-volt battery and exploding capacitors), leave 'em in the comments & we'll see what we can come up with.