Discover how to build a DIY magnetic stirrer from basic materials in this easy-to-follow tutorial. Perfect for mixing tea, coffee, or even for science experiments, this homemade magnetic stirrer uses ...

A diode is a tiny component that controls the flow of electricity by allowing current to pass in only one direction. This ...

Abstract: Deep ultraviolet light-emitting diode (LED) sterilization and germicidal lamps with short-wave characteristics, can be used to replace the traditional ultraviolet mercury lamps, is a new ...