Dear, if you meet the scientist Marie Curie, ask a question. He was a physicist and chemist. You learned about the scientist Marie Curie about radioactivity when you were in secondary school. This discovery of the scientist Marie Curie was surprising. He has made many contributions in medical science. Then you wrote about three wonderful discoveries. The Internet, cell phones and computers are truly amazing inventions. But I think everything used in daily life is a wonderful invention. Without science we would suffer more especially in medicine. Throughout the ages, people died from epidemics. Medical science has created wonders by discovering vaccines for cholera, typhoid and corona virus. Your writing about science is very beautiful. Good luck to you.