ted bradstrom has some ideas of electromagnetic induction he wants to share with us today. speaking of electromagnetic induction. he's got a nice one here. really simple, really nice. magnet, coil. so we know when we're moving a magnet through the coil, what's gonna happen? hopefully we get current flowing, okay. it goes through the wire and meets another coil. what happens when you got a current through a coil? magnet. magnet, okay. so we put a compass in the middle of this, and, okay, let's see if we get it. there we go. look at that, gang. look at that. an interaction from here to there. hey. just in case you think we were lying, i'll just move this and you can see how it's moving, right? is the-- nothing moves down there, yeah? no. now watch when he changes the magnetic field in the coil. what happened down here, gang? yeah, all right? okay. you want to know the fun part? you don't have to move the magnet. you can hold the magnet steady-- [laughter] yeah. --and move the coil back and forth. hey, you know what, you know what is a neat, neat application of electromagnetic

ted bradstrom has some ideas of electromagnetic induction he wants to share with us today. speaking of electromagnetic induction. he's got a nice one here. really simple, really nice. magnet, coil. so we know when we're moving a magnet through the coil, what's gonna happen? hopefully we get current flowing, okay. it goes through the wire and meets another coil. what happens when you got a current through a coil? magnet. magnet, okay. so we put a compass in the middle of this, and, okay, let's see if we get it. there we go. look at that, gang. look at that. an interaction from here to there. hey. just in case you think we were lying, i'll just move this and you can see how it's moving, right? is the-- nothing moves down there, yeah? no. now watch when he changes the magnetic field in the coil. what happened down here, gang? yeah, all right? okay. you want to know the fun part? you don't have to move the magnet. you can hold the magnet steady-- [laughter] yeah. --and move the coil back and forth. hey, you know what, you know what is a neat, neat application of electromagnetic