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Felt

Felt

Felt Felt is the name of a special textile fabric made of a random fibrous material that is classified according to a type of manufacture. Matted fibres of wool, hold together by stitching, a chemical binder, or by the action of heat or moisture. Milling felt (wool...
Light-emitting diode (LED)

Light-emitting diode (LED)

Light-emitting diode (LED)Light-emitting diode (LED) is a term used on a light source very effective, energy saving replacement of the traditional light bulb. LED is a semiconductor device in which monochromatic light is produced as electrons undergo a transition...
Photovoltaic cells (solar cells)

Photovoltaic cells (solar cells)

Photovoltaic cells (solar cells) The photovoltaic cell ( solar cells or PV’s) is a term used to describe devices that convert solar radiation directly into electricity. PV’s are a sort of semiconductor that catches the light and convert into pure and clean...