Dear, if you meet scientist Newton, ask a question. Want to know about the force of gravity. Why didn't the apple float in the air? Then you wrote about three wonderful discoveries. Internet, construction and magnetism are three truly amazing inventions. But every thing discovered in everyday life is a wonderful discovery. But I see medical science as a wonderful discovery. Medical science discovers vaccines and antibiotics during epidemics. Completes major operations by cutting open people's stomachs. Without science we would be backward in every field. We did not feel the touch of civilization. The world has become easier and faster because of science. Your science writing is very nice. Good luck to you.