jan 1, 1909 - 1909- Robert Millikan
Robert Millikan was a physicist famous for his Oil Drop Experiment. During this experiment, he was able to accurately determine the charge an electron carried. He also determined that charge is quantized, or has a smallest unit of charge. These discoveries allowed him to calculate Rydberg’s constant and provided the first piece of evidence for the new atomic theory. In result of his great contributions in science, he received the Nobel Prize in Physics in 1923.
Added to timeline:
History of the Atom
by Katya Sander, Aurielle Smith, Amaya Mix