Compton Effect Arthur H. Compton, the creator of the first nuclear reactor Enrico Fermi, "the father of the hydrogen bomb" Edward Teller, "one of the most brilliant and productive experimental physicists of the twentieth century" Luis Walter Alvarez, Murray Gell-Mann who introduced the quark, second female Nobel laureate Maria Goeppert-Mayer, the youngest American winner of the Nobel Prize Tsung-Dao Lee, and astrophysicist Subrahmanyan Chandrasekhar. In law, former U.S. president Barack Obama, the most cited legal scholar of the 20th century Richard Posner, Supreme Court justices Elena Kagan, Antonin Scalia, and John Paul Stevens, and Nobel laureate in economics Ronald Coase have served on the faculty. Other distinguished scholars who have served on the faculty include Karl Llewellyn, Edward Levi, Cass Sunstein, and legal historian Stanley Nider Katz. Philosophers who were members of the faculty include Nobel Prize-winning philosopher Bertrand Russell, John Dewey (central figure in pragmatism and founder of functional psychology), philosopher and political theorist Hannah Arendt, George H. Mead (who is considered one of the founders of social psychology and the American sociological tradition), and Leo Strauss (prominent philosopher and the founder of the Straussian School in philosophy). Notable writers T.S. Eliot, Ralph Ellison, and J.M. Coetzee have all served on the faculty. Past faculty have also included astronomer Gerard Kuiper, biochemist and National Women's Hall of Fame member Florence B. Seibert, biologist Susan Lindquist, chemists Glenn T. Seaborg, Yuan T. Lee (the developer of the actinide concept and Nobel Prize winner), egyptologist James Henry Breasted, mathematician Alberto Calderón, Friedrich Hayek (one of the leading figures of the Austrian School of Economics and Nobel prize winner), meteorologist Ted Fujita, linguistic anthropologist Michael Silverstein, Nobel Prize winning novelist Saul Bellow, American politics scholar Herbert Storing, political philosopher and author Allan Bloom, conservative political philosopher and historian Richard M. Weaver, cancer researchers Charles Brenton Huggins and Janet Rowley, one of the most important figures in the early development of the discipline of linguistics Edward Sapir, the founder of McKinsey & Co. James O. McKinsey, and Nobel Prize-winning physicist James Cronin. Current faculty include the philosophers Jean-Luc Marion, James F. Conant, Robert Pippin, and Kyoto Prize winner Martha Nussbaum; political scientists John Mearsheimer and Robert Pape; anthropologist Marshall Sahlins; historians Dipesh Chakrabarty, David Nirenberg, and Kenneth Pomeranz; paleontologists Neil Shubin and Paul Sereno; evolutionary biologist Jerry Coyne; Nobel Prize-winning economists Eugene Fama, James Heckman, Lars Peter Hansen, Roger Myerson, Richard Thaler, Robert