In this paper, three magnetically coupled flextensional vibration energy harvesters (MF-VEHs) are designed from three magnetically coupled vibration systems which utilize a magnetic repulsion, two symmetrical magnetic attractions and multi-magnetic repulsions, respectively.
The Japanese technology is based on the magnetic repulsion of high-power, helium-cooled superconductor magnets on the vehicle and coils of the same polarity in the guideway.
A "serious danger" exists that the French-German "magnetic core" of an integrating Europe could come to exert "magnetic repulsion".
Unfortunately, both of these hoverboards only work when travelling over metal surfaces, since they work through the principles of magnetic repulsion.
Imagine opening your mouth and watching one levitate inside.Correction: the process for lifting the robots uses magnetic attraction, as well as the magnetic repulsion to which we originally referred.
Hoverboards have made headlines thanks to the Hendo board, which, like a maglev train, uses magnetic repulsion to float a couple of centimetres above a floor made of non-ferrous metal such as copper or aluminium.
Due to the magnetic repulsion, the strips bend apart, opening the valve.
They then adjusted a magnetic field, which controlled the repulsion between atoms.
With just the right combination of materials, though, you can get a situation where magnetic atoms with opposite magnetic poles squeeze together closely enough that the repulsion between electrons raises the energy, but pushing a bit farther apart and lining the magnetic poles up lowers it.
Induced eddy currents in work-piece produce a magnetic field with reverse direction of initial magnetic field; this results in a mutual repulsion between coil and work-piece and in this way the work-piece is thrown toward the die.
