Considered to be the classic experiment on the origin of life, it was conducted in 1952 and published in 1953 by Stanley Miller and Harold Urey at the University of Chicago.

Columbia University rejected Lipscomb's application in a letter written by Nobel prizewinner Prof. Harold Urey.

* November 25 – Heavy Hydrogen, later named Deuterium, is discovered by chemist Harold Clayton Urey.

* April 29 – Harold C. Urey, American chemist, Nobel Prize laureate ( d. 1981 )

** Harold C. Urey, American chemist, Nobel Prize laureate ( b. 1893 )

* Chemistry – Harold Clayton Urey

At the time, he was able to associate with many future luminaries, including J. Robert Oppenheimer, John H. Van Vleck, and Harold C. Urey.

A very influential stimulus to nucleosynthesis was an abundance table by Hans Suess and Harold Urey based on the unfractionated abundances of the non-volatile elements within unevolved meteorites.

The professional history of radioactive weaponry may be traced to a 1943 memo from James Bryant Conant, Arthur Holly Compton, and Harold Urey, to Brigadier General Leslie Groves of the Manhattan Project and to a 1940 science fiction story, " Solution Unsatisfactory " by Lt. J. G. Robert A. Heinlein, USN ( R ).

* 1931 Harold Urey discovers deuterium using evaporation concentration techniques and spectroscopy

While at Chicago, Miller was a student of Harold Urey.

Topchiev, Harold C. Urey, Paul Weiss, James L. Tuck, among many others.

* Harold C. Urey ( 1893 – 1981 ), winner of the 1934 Nobel Prize in Chemistry for the discovery of deuterium, was born in Walkerton.

" Others, including non-Communists such as Albert Einstein and Nobel-Prize-winning physical chemist Harold Urey, as well as Communists or left-leaning artists such as Nelson Algren, Bertolt Brecht, Jean Cocteau, Dashiell Hammett, Frida Kahlo and Diego Rivera, protested the position of the American government in what the French termed America's Dreyfus affair.

Irving Kaplan rated Rabi and Harold Urey as " the worst teachers I ever had ".

Hydrogen's Deuterium isotope had only recently been discovered at Columbia in 1931 by Harold Urey, who received the 1934 Nobel Prize in Chemistry for this work.

During Pupin's tenure, Harold C. Urey, in his work with the hydrogen isotope deuterium demonstrated the existence of heavy water, the first major scientific breakthrough in the newly founded laboratories ( 1931 ).

Grover Whalen, a public relations innovator, saw the Fair as an opportunity for corporations to present consumer products, rather than as an exercise in presenting science and the scientific way of thinking in its own right, as Harold Urey, Albert Einstein and other scientists wished to see the project.

After the start of World War II, he worked on the Manhattan Project at Columbia University with Nobel laureate chemist Harold Urey.

** Chemistry: Harold Clayton Urey

* The Harold C. Urey Prize ( DPS ), for outstanding early career in planetary science

Harold Urey, widely considered to be one of the fathers of cosmochemistry, engaged in research that eventually led to an understanding of the origin of the elements and the chemical abundance of stars.

Harold Urey said of a Ranger IX close-up photograph of Alphonsus:

The need for some kind of rapid capture of neutrons was seen from the relative abundances of isotopes of heavy elements given in a newly published table of abundances by Hans Suess and Harold Urey in 1956.

** Harold Lloyd, American actor and filmmaker ( b. 1893 )

Harold Clayton Lloyd, Sr. ( April 20, 1893 – March 8, 1971 ) was an American film actor and producer, most famous for his silent comedies.

Harold Clayton Urey ForMemRS ( April 29, 1893 – January 5, 1981 ) was an American physical chemist whose pioneering work on isotopes earned him the Nobel Prize in Chemistry in 1934.

* January 5 – Harold Urey ( b. 1893 ), American winner of the Nobel Prize in Chemistry.

George Harold Sisler ( March 24, 1893 – March 26, 1973 ), nicknamed " Gentleman George " and " Gorgeous George ," was an American professional baseball player for 15 seasons, primarily as first baseman with the St. Louis Browns ( now the Baltimore Orioles ).

* Harold Cummins ( 1893 – 1976 ), father of Dermatoglyphics

Harold Edward Joseph " Bullet Joe, Joe " Simpson ( August 13, 1893 – December 25, 1973 ) was a Canadian professional ice hockey defenceman who played for the Edmonton Eskimos and New York Americans.

William Harold Southworth ( March 9, 1893 – November 15, 1969 ) was an American right fielder, center fielder and manager in Major League Baseball.

* 1893 Harold Baily Dixon, The rate of Explosion in Gases.

* 1903 – Harold Edgerton, American electrical engineer ( d. 1990 )

* 1887 – Harold Lockwood, American actor ( d. 1918 )

* 1970 – California judge Harold Haley is taken hostage in his courtroom and killed during in an effort to free George Jackson from police custody.

* 1939 – Harold Reid, American singer-songwriter ( The Statler Brothers )

* 1974 – Harold Hunter, American skateboarder and actor ( d. 2006 )

* 1933 – 1955 Sir Harold Spencer Jones

* Harold Rose ( 1925 – 26 )

The original editor was George Moonie, 1938 – 1959, followed by Harold Cramond, 1959-84.

* Harold S. Black ( 1898 – 1983 ), invented the concept of negative feedback amplifiers in 1927.

* 1899 – Harold Abrahams, English sprinter ( d. 1978 )

* 1954 – Harold Hongju Koh, American lawyer and Obama Administration advisor

* 1967 – Harold Holt, Australian politician ( b. 1908 )

Janssen was born as David Harold Meyer in Naponee, Nebraska to Harold Edward Meyer, a banker ( May 12, 1906 – November 4, 1990 ) and Berniece Graf ( May 11, 1910 – November 26, 1995 ).

* 1966 – Dave Harold, English snooker player

Beatty's other brothers were Charles Harold Longfield ( 1870 – 1917 ) who served with distinction in the South Africa wars before dying from complications after losing an arm in Flanders, Richard George ( 1882 – 1915 ) who died on active service in India, William Vandeleur Schruder ( 1873 – 1935 ) who became an army Major and Newmarket horse trainer, and one sister Kathleen Roma ( 1875 –).

With Raymond Williams and Stuart Hall, he was one of the editors of the 1967 May Day Manifesto, one of the key left-wing challenges to the 1964 – 70 Labour government of Harold Wilson.

For a thorough defense of the Pauline authorship of Ephesians, see Ephesians: An Exegetical Commentary by Harold Hoehner, pp 2 – 61.

In 2006 the BBC documentary The Plot Against Harold Wilson alleged that there had been another plot involving Mountbatten to oust Wilson during his second term in office ( 1974 – 76 ).

* 2004 – Harold Bernard St. John, Barbadian politician, ( b. 1931 )

* 1891 – Harold Horder, Australian rugby league player ( d. 1978 )