THE homopolar generator 1,2 at the Australian National University in Canberra can be connected to deliver 1.5 × 10 6 A at more than 800 V for 0.1 s. When light sources capable of handling such power ...

As a hacker, chances are that you have built a homopolar motor, as you only need three things: a battery, a magnet and some copper wire. There are zillions of videos ...

EARLY in 1963 a programme was begun with the view of establishing whether or not solid brushes could be used instead of liquid metal jets to collect the required current (1.6 million amp) from the ...