I saw a similar video a while back - I *think* it was posted here on dc, and I *think* it used the same principles, but not sure.Anyone else remember?-tomos (July 12, 2013, 02:37 PM)
How come I never knew about the slow fall effect of a magnet through a copper pipe? I'm glad he demonstrated that because I can actually try it myself - I'm going to have to show that to the kids.-mwb1100 (July 12, 2013, 11:17 AM)