Demonstrates how electricity can be produced from magnets through various experiments. It explains that electric currents can create magnetic effects, forming electromagnets that only work while ...
THE careful instructions for the eighty-five experiments contained in this little book, together with the useful hints for the construction of apparatus, should serve very well to introduce young ...
Scientists are now proposing a novel approach to achieve greater memory density while producing less heat: by using an electric field instead of a current to turn magnetism on and off, thereby ...
Safety note: the wire can get too hot to touch if you keep touching the terminals for too long. Can't see the video? Download an mp4 [21 MB] version of this video. Grab a compass, a coat hanger and a ...
School may be out for the summer, but children and adults found plenty to learn about Wednesday at the Swedish Days Festival in Geneva. The event runs through Sunday Dozens of families converged on ...
(I) MR. KEMPSON'S book on magnetism and electricity is based on the course given to the science forms in the Upper School at Rugby. The ground covered is fairly extensive, and the matter is dealt with ...
If you chop a magnet in half, you end up with two smaller magnets. Both the original and the new magnets have "north" and "south" poles. But what if single north and south poles exist, just like ...