Gas water heaters are central to many of the comforts of modern life. People are generally not eager to start looking at replacement gas water heaters, but it's important to know when the time has come. Folks who feel unsure about whether they should replace their water heaters ought to look for these five signs of problems.
Discolored water is often a sign of trouble with the water tank.
Light-emitting diodes, or LED lights, have revolutionized the lighting industry with their energy efficiency and long lifespan. LED lights work by passing a current through a semiconductor material, which then emits light. This article will explore the science behind LED lights and how they work.
How LED Lights Work
LED lights are composed of semiconductor material, made up of two layers of material known as P-type and N-type semiconductors. When a current is passed through the P-type and N-type semiconductors, electrons are able to move from the N-type material to the P-type material.