The Light Bulb

The piece of electronic technology I consider to be essential in my life is the light bulb because without it I wont be able to see clearly at night and I can't do certain things I usually do like take a shower late at night or use my phone or TV because that emits light. The way a light bulb works is that incandescent bulbs contain a long, coiled, piece of metal called a filament. In fact, an average 60 watt bulb has over 6 feet of filament wire inside of it. When you turn on a light bulb, electricity flows through the filament. As the filament heats up it produces light.