In this world, the only permanent thing is change. At the transition of generations. Passing of ways in living but still changing until a big part of our lives are not moving differently than it was in the past. Though we love changing, these kind of inevitable events greatly affect our environment. Such discoveries were made. Electricity, chemicals, batteries, and other things that supposedly make our lives easier to handle. But the effect is very much concerned. To our health, in our way of living and such.