Dear Madam, If you meet the scientist Marie Curie, don't question her but tell her one thing. Thank you for contributing to physics by being a girl. I also thank you because he is a famous scientist. At the time she became a physicist, girls had very little power. Then you wrote about three wonderful discoveries. Plastic, earth and GPS are the most amazing inventions you will ever see. Environmental pollution is caused due to plastic reuse and disposal. For which we humans are responsible. But to me all the inventions used in daily life are amazing. Medical science in particular is the most surprising. Without science, we would die of various diseases due to lack of vaccines. The transportation system was not modern. I would have remained in the early days. Your writing about science is very beautiful. Good luck to you.