This is a simple fire alarm circuit using Germanium Diode and 555 timer. In this circuit Germanium Diode plays very important role in detecting the fire.This is a simple fire alarm circuit using ...

Programmable photonics devices, which use light to perform complex computations, are emerging as a key area in integrated photonics research. Unlike conventional electronics that transmit signals with ...

The classic crystal radio was an oatmeal box with some wire and a few parts. [Michael Simpson] has something very different. He found an assembled Philmore “selective” radio kit. The simple kit had a ...

Germanium is an attractive material for silicon-compatible optoelectronics, but in its bulk form it does not emit light efficiently because of its indirect bandgap. Applying tensile strain to ...

Shiny and silvery, yet very brittle, germanium is an important component in semiconductors and fiber optics. Some people think germanium supplements have health benefits, but research has not ...

The lowly diode, a device with only two leads, can nonetheless do many things. Diodes can detect, rectify, suppress, emit light, detect light, change capacitance, emit microwaves and more. This wide ...