New Zealand-born British physicist Ernest Rutherford was essential to the study of radioactivity, and he won the Nobel Prize for Chemistry, among other awards. Julius Robert Oppenheimer was an American theoretical theorist who is well-known as the inventor of the atomic bomb, but is also remembered as a leader in training a new generation of U.S. physicists. Inside this volume, readers will explore these two fascinating biographies, as well as the biographies of many other notable scientists. Biographies are supported by stunning photographs and primary sources.