Dear, would you ask scientist Stephen Hawking a question if you get a chance. Want to know about the depth of theoretical material science. A very instructive question. Then you call three discoveries surprising. Electricity, internet and medicine are the most amazing inventions you will ever see. You have written about three amazing discoveries that are very important. But I think all inventions used in daily life are amazing. Without science we would suffer from lack of medicine. Epidemics from ages would have destroyed us. I could not communicate. I could not diagnose the disease. Your writing about science is very beautiful. Good luck to you.