I remember doing the in E&M

I am guessing 3/4" x 1/4" magnets. Thats cheap enough.. now if I can find a local shop who will sell me 2 or 3 feet of that $$$$$$$$ pipe

The magnet's aren't attracted to the copper pipe? Lenz's law, you crazy man.

>> ^Morganth:

The magnet's aren't attracted to the copper pipe? Lenz's law, you crazy man.


does copper equal iron, nickel, or cobalt?

Magnets? How do they work?

Sure, I could buy all that crap to do it myself.

Or I could just replay the video a few times and call it good.

This is the same principle used to brake some of the newer roller coasters like Top Thrill Dragster at Cedar Point: http://www.youtube.com/watch?v=LbN3NU4hIZg. In the roller coaster, the train has the magnet which passes over vertical copper fins that you can see protruding up from the track at the end of the ride.

Yeah yeah yeah... magnets this, magnets that, it's all very nice but in the end, GRAVITY always wins.

>> ^nosro:

This is the same principle used to brake some of the newer roller coasters like Top Thrill Dragster at Cedar Point: http://www.youtube.com/watch?v=LbN3NU4hIZg. In the roller coaster, the train has the magnet which passes over vertical copper fins that you can see protruding up from the track at the end of the ride.


LOL - even better are the times when it goes backwards. Or simply gets stuck:
http://www.youtube.com/watch?v=LeOEZqbCjzQ&feature=related

It would have been a better video if he'd dropped the magnets outside the tube as well as inside. IOW, the shot is looking horizontally at the outside of the tube, one drop is outside, one is inside, to show the differences in time.

Still, seeing them float down the tube is grin-worthy.

I think I saw a better embed on CopperTube.

*dead

This video has been declared non-functional; embed code must be fixed within 2 days or it will be sent to the dead pool - declared dead by residue.