a fellow by the name of volta, alessandro volta, italian type, made batteries. and that was kind of nice. everyone's excited about electricity. and then michahael faraday and joseph henry discovered the following, no batteries. battery's over there, gang. no batteries, no tricks. magnet, wire, meter. watch this. you see anything? no. faraday didn't see anything, either. [laughter] okay. and--but watch this. henry didn't see anything, either, but watch this. did you see something? yeah. again. my goodness. my goodness. there's no battery nearby and guess what we are generating? begin with e, c. electric current. i am generating electric current. and faraday and henry found out that. no batteries, no cells, no lightning, none of that, just the motion of a wire and a magnetic field. so faraday goes to bed and he's really excited about that. and while he's in bed that night, i'm making this up now. while he's in bed that night, he's kind of thinking, "gee, i wonder what would happen if i did it with two wires?" so he gets up in the middle of the night, takes his can

a fellow by the name of volta, alessandro volta, italian type, made batteries. and that was kind of nice. everyone's excited about electricity. and then michahael faraday and joseph henry discovered the following, no batteries. battery's over there, gang. no batteries, no tricks. magnet, wire, meter. watch this. you see anything? no. faraday didn't see anything, either. [laughter] okay. and--but watch this. henry didn't see anything, either, but watch this. did you see something? yeah. again. my goodness. my goodness. there's no battery nearby and guess what we are generating? begin with e, c. electric current. i am generating electric current. and faraday and henry found out that. no batteries, no cells, no lightning, none of that, just the motion of a wire and a magnetic field. so faraday goes to bed and he's really excited about that. and while he's in bed that night, i'm making this up now. while he's in bed that night, he's kind of thinking, "gee, i wonder what would happen if i did it with two wires?" so he gets up in the middle of the night, takes his can