Dear, you will meet the Venezuelan scientist Jacinto Convit and ask questions. Although the scientist is no longer alive. Discovered the leprosy vaccine. Over the ages these medical scientists have contributed to the world. Then you mentioned three amazing discoveries. Electricity, vaccines and internet. Apart from these, the small discoveries of science have played a role in our daily life. Without science, civilization would not have come to earth. People's behavior did not change. Science has modernized man. Your writing about science is very beautiful. Good luck to you.