Penulis: Stephen D Ellis

By year 1911 radioactivity had been discovered for over a decade, but its origin remained a mystery. Rutherford’s discovery of the nucleus and the subsequent discovery of the neutron by Chadwick star …

By year 1911 radioactivity had been discovered for over a decade, but its origin remained a mystery. Rutherford’s discovery of the nucleus and the subsequent discovery of the neutron by Chadwick star …