7/11/1732 Joseph Lalande, astronomer, he died in 1807 at 74.
7/11/1811 Sir William Grove, physicist, pioneer in fuel cell technology, he died in 1896 at age 85.
7/11/1902 Samuel Goudsmit, physicist, jointly proposed the concept of electron spin with George Ulenbeck. He died in 1978 at age 76.
7/11/1916 Alexander Prokhorov, physicist, pioneer research on lasars and masars. He died in 2002 at age 85.
7/11/1927 Theodore Maiman, physicist, earned his way through college by repairing electrical appliances and radios, he went on to invent, demonstrate and patent the first laser. He died in 2007 at age 79.