Cryosol: Cryosol, one of the 30 soil groups in the classification system of the Food and Agriculture Organization (FAO). Cryosols are characterized by frozen soil ... Britannica.com
Robert A. Millikan's Definitive Measurement. Robert A. Millikan started his work on electron charge in 1906 and continued for seven years. His 1913 article announcing the determination of the electron's charge is a classic and Millikan received the Nobel Prize for his efforts.
Rutherford discovered protons and the nucleus. He showed that atoms have (+) particles in. the center, and are mostly empty space. He called these (+) particles protons. He called the center. of atoms the nucleus.