There was physicist Albert Einstein, Jonas Salk (creator of the first polio vaccine), Albert Sabin (oral polio vaccine), Galileo (discovered the speed of light, among other things), Selman Waksman (Streptomycin and coined the word antibiotic), Gabriel Lipmann (discovered color photography), Baruch Blumberg (discovered the origin and spread of infectious diseases), G. Edelman (discovered chemical structure of antibodies), Briton Epstein (identified the first cancer virus), Maria Meyer (structure of atomic nuclei), Julius Mayer (discovered law of thermodynamics), Sigmund Freud (father of psychotherapy), Benjamin Disraeli (British prime minister), Isaac Singer (inventor of the sewing machine), Levi Strauss (largest maker of denim jeans), Joseph Pulitzer (established the famous prize that honors journalists, literature, music and art), Ben Hecht (journalist, playwright, novelist).