Neodymium magnet in copper pipe

New fat copper pipe with big magnet:

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melt metal with magnets
melt metal with magnets

Copper pipe and neodymium magnet
Fun with copper pipe and neodymium magnet

sphere spins, but in wrong plane; around wrong axis
Magnetic sphere is N38, diameter 1" (26 mm). Coil is a basic vortex coil, 120 notches; stepping 41, aready energized with 180° phase-shifted square wave signals @ ca. 13 Hz at start of video. Powered by a 12 V car battery, with a 21 W car light bulb as load in each circuit. Signal generation by sqare wave generator, 50% duty cycle. I use a DDS20 digital square wave generator which I bought from 1&bereich=&marke= Signal B is produced by a NOR-gate, so that it should be exactly in phase opposition to signal A, that is to say while A is ON, B is OFF and vice versa. With my signal generator I can only change the frequency. No alteration of duty cycle, phase shifting or other fancy stuff. The sphere spins with good torque, i.e. there is a lot of friction between the sphere and the white stone slab, which lies under the coil. More on in forum thread "Marko Rodin"

MAGNETIC ACCELERATOR - SMOT experiment for kids
In this video 3 different example of SMOT, Simple Magnetic Overunity Toy. Very easy to do and fun for children. For more info on this experiment click here in-magnetic-channel I used these magnets and steel ball: the disks are similar to this magnet