Simple Microscope – Antony van Leeuwenhoek
Compound Microscope – Zacharias Janssen or Sacharias Jansen
Electron Microscope – Max Knoll and Ernst Ruska
Telescope – Galileo Galilei
DNA Model – Watson and Crick
Law of Heredity – Gregor Mendel
Vitamins - Kazimierz Funk or Casimir Funk
