Neodymium magnet in copper pipe

New fat copper pipe with big magnet:

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melt metal with magnets
melt metal with magnets

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"

World's First Electric Generator
Huge thanks to the Royal Institution, Professor Frank James, and Katie Atmore for filming. For the Sixty Symbols version of this experiment click Michael Faraday created the first electric generator in 1831 using a coil of wire and a permanent magnet. When the magnet was moved relative to the coil, current was induced in the coil. A similar experiment can be performed with a copper tube and a magnet. Although copper is not magnetic, it is a conductor. As the magnet falls through the pipe, the magnetic field changes over different sections of the pipe. This induces swirling currents (called eddy currents), which create a magetic field that opposes the motion of the magnet. This means work must be done to move the magnet through the pipe. This work generates the electrical energy, which is then dissipated as thermal energy in the pipe. The same basic principle is used to generate electricity throughout the world: moving a magnet inside copper coils. Experiments A Cappella Where Did The Earth Come From The Coastline Paradox Microwave Grape Plasma Music by Kevin McLeod ( Sneaky Snitch and Danse Macabre

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