========== Hey it's me, Destin. I'm in Baltimore.[Mascot blows raspberries]
[Destin laughs]Thanks.[Music]So let's say you want to make
yourself smarter on electronics,but you're not, uh...You're not really swoofed
on that kinda stuff.Oh, looky here, it's the
National Electronics Museum.Why don't we go have a look?John McCarty is here. He's
a volunteer at the museum.We have a demonstration for youto show you the relation between
current flow and magnetism.So there's a magenet right here,on this side of this tube.
We have a coil of wirehooked up to a galvanometer,
basically, that's measuring amps.It's set up for DC amps.So when we twist this, the magnet's
gonna fall through the coiland you'll get current flow here.So you can see the current spike.So here's the question: when
we turn it th...