1-Electricity lights up the bulb so we can see in the dark.
2-Electricity heats up the oven so we can cook food.
3-Electricity runs computers and makes it possible for computers to do complicated calculations in seconds.
Electricity has become a household necessity in many places around the globe. It is used to power everything from batteries in a child's toy to powering NASA's super computers. So, why is it useful? It has people bound to their couches watching television. It has people up in the middle of the night instant messaging to friends halfway across the globe. It even has people of all ages glued to iPods, PSPs, laptops and much more. Even so, electricity does have its uses. It powers your ICU machines in the hospitals. It powers the computers of every airline on the planet allowing us to fly safely through the skies without fear of crashing into another plane. It powers the this simple household computer from which I am typing and allows you, where ever you are to ask this question; and me to answer it as best I can. So, electricity is useful.