1.1 The origin of the bulb Bulbs, Edison's incandescent usually called , glass , almost known, one hundred years of history , use very extensive. The principle is that through the power and shine , the tungsten filament is heated to incand…

With the new municipal engineered around propulsion , LED lights become the absolute protagonist , shine. Meanwhile, with the constantly falling prices of industrial chain accessories , LED street prices are falling. In the case of low pro…

Effect of static magnetic field SmCo magnets for tissue is not too large, there are few mainstream scientific evidence to show that exposure to safety in the static magnetic field. But studies have shown that the electromagnetic radiation …

Magnet is a very wide range of useful items that can be used in stereo , electrical , magnetic , packaging , electronic equipment, and many other uses.Classification magnet , according to the raw material of able to hard ferrite, NdFeB, sa…