Quick facts
  • AlsoListedIn: Chemists
  • Also Known As: Harold Clayton Urey, Harold C. Urey
  • Famous as: Chemist
  • Born on: 29 April 1893 AD
  • Birthday: 29th April    Famous 29th April Birthdays
  • Died At Age: 87
  • Sun Sign: Taurus    Taurus Men
  • Born in: Walkerton
  • Died on: 05 January 1981 AD
  • place of death: La Jolla
  • father: Samuel Clayton Urey
  • mother: Cora Rebecca Reinoehl
  • Spouse:: Frieda Urey
  • education: Columbia University University of California Berkeley University of Montana
Long facts
  • Childhood Early Life: Harold Urey was born as Harold Clayton Urey to Samuel Clayton Urey and Cora Rebecca née Reinoehl on April 29, 1893 in Walkerton, Indiana. He was the eldest child of the couple and two had younger siblings, a brother and sister. His father passed away whe
  • Childhood Early Life: Young Urey gained his early education from Amish Grade School before enrolling at a high school in Kendallville, Indiana. He obtained a teacher’s certificate from the Earlham College.
  • Childhood Early Life: In 1914, Urey enrolled himself at the University of Montana in Missoula. Three years later, he graduated with a Bachelor’s degree in Zoology. Same year, US entered World War I. Urey took a wartime job with Barrett Chemical Company, making TNT.
  • Childhood Early Life: Post World-War I, he took up job as an instructor in Chemistry at the University of Montana. In 1921, he enrolled for a PhD program at the University of California, Berkeley, where he studied thermodynamics. His work led to accepted methods for calculatin
  • Childhood Early Life: Upon completing his PhD in 1923, Urey gained a fellowship by the American-Scandinavian Foundation to study at the Niels Bohr Institute in Copenhagen under the Danish physicist.
  • Childhood Early Life: Returning to United States, he received two offers - a fellowship to Harvard University and a research associate at Johns Hopkins University. He chose the latter.
  • Childhood Early Life: In 1929, he was appointed as an associate professor of Chemistry at the Columbia University. Following year, along with Arthur Ruark, Urey penned ‘Atoms, Quanta and Molecules’. The book was one of the first written works on quantum mechanics and its appl
  • Childhood Early Life: During the 1930s, the theory of isotopes had been developed. Chemists from around the world were aware that an element may consist of atoms with the same number of protons but different masses. While the isotopes of carbon, nitrogen and oxygen had been di
  • Childhood Early Life: Along with a fellow chemist, Murphy, Urey conducted a series of experiments that could help him calculate about the isotopes of hydrogen. He even travelled to cryogenics laboratory at the National Bureau of Standards in Washington DC to obtain liquid hydr
  • Childhood Early Life: With the help of Ferdinand Brickwedde and Murphy, Urey conducted experimental research. He evaporated hydrogen multiple times. Finally, the trio saw the Balmer lines for ‘Heavy Hydrogen’ which was seven times intense than normal. It was then that they wer
  • Childhood Early Life: In 1932, Urey along with Murphy and Brickwedde published a paper that publically stated the discovery of deuterium. Same year, he was promoted to the post of Professor at Columbia University. He also founded the Journal of Chemical Physics and served as i
  • Childhood Early Life: In 1934, Urey was awarded a Nobel Prize in Chemistry for his discovery of heavy hydrogen. From 1940 until 1945, he chaired the position of Director of War Research, Atomic Bomb Project, Columbia University
  • Childhood Early Life: Urey’s investigation and research did not stop with deuterium. He continued to find out more about the isotopes of carbon, nitrogen, hydrogen, oxygen and sulphur. He continuously developed successful methods for separating rarer isotopes of all these elem
  • Childhood Early Life: By the time World War II broke out, Urey had come to prominence in the scientific world and was popularly called the world expert on isotope separation. However, until then, he dealt with lighter element only. In 1939, he published papers that gave an ins
  • Childhood Early Life: When Danish physicist Neils Bohr stated that uranium 235 was potentially fissile, his recommendation came under scrutiny. To clear doubts, Urey began to study about uranium intensively. He used all the experimental techniques right from gaseous diffusion
  • Childhood Early Life: In 1941, he was part of the team of the Office of Scientific Research and Development that conducted the uranium research. Following year, he travelled to England with George B Pegram to establish co-operation on development of the atomic bomb.
  • Childhood Early Life: Urey was appointed as the head of the wartime Substitute Alloy Materials Laboratory at Columbia. It was only in 1943 that the Manhattan Project gained momentum. Just as expected the operation which was huge and complex was marred by various problems. Deve
  • Childhood Early Life: Towards the end of 1943, Urey had a workforce of 700 people working under him. The gaseous diffusion process had its own technical challenges but was more encouraging than the rest. It eventually was successfully developed and became the sole method used
  • Childhood Early Life: Following World War II, Urey took up the post of a Distinguished Service Professor of Chemistry at the Institute for Nuclear Studies at University of Chicago. In 1952, he became Ryerson professor of chemistry.
  • Childhood Early Life: During 1956 and 1957, he was George Eastman Visiting Professor at the University of Oxford, and in 1958 took up his post as Professor-at-Large, University of California.
  • Childhood Early Life: Post war, Urey all through campaigned against military control of nuclear energy. He instead supported the creation of Atomic Energy Commission. Urey also went on lecture tours against war and became actively involved in Congressional debates regarding nu
  • Childhood Early Life: Towards the end of his life, Urey dedicated himself to research programs on planetary sciences. He came out with the book, ‘The Planets: Their Origin and Development’ in which he mentioned a detailed chronology of the origin of Earth, Moon, meteorites and
  • Childhood Early Life: Harold Urey is best remembered as the world expert on isotope separation. His pioneering work came during the 1930s and 1940s decade when he started working on separation of isotopes. It was due to his rigorous experimental work that finally deuterium, an
  • Childhood Early Life: In 1934, Urey won the Nobel Prize in Chemistry for his discovery of deuterium. Same year, he also received the Willard Gibbs Medal by the American Chemical Society.
  • Childhood Early Life: In 1940, he was bestowed with the Davy Medal by Royal Society, London. Three years later, he was awarded Franklin Medal and in 1946 was the proud recipient of Medal for Merit for his work on Manhattan Project.
  • Childhood Early Life: Between 1954 and 1955, Urey was thrice honoured, first with Cordoza Award, later with Honor Scroll Award by American Institute of Chemists ad later with Joseph Priestley Award.
  • Childhood Early Life: Urey married Frieda in 1926 at Lawrence, Kansas. The couple was blessed with four children, Gertrude Bessie (Elisabeth) in 1927, Frieda Rebecca in 1929, Mary Alice in 1934 and John Clayton Urey in 1939.
  • Childhood Early Life: He breathed his last on January 5, 1981, at La Jolla, California. He was buried at the Fairfield Cemetery in DeKalb County, Indiana.
  • Childhood Early Life: A lunar impact crater and asteroid 4716 has been named after him.
  • Career: Post World-War I, he took up job as an instructor in Chemistry at the University of Montana. In 1921, he enrolled for a PhD program at the University of California, Berkeley, where he studied thermodynamics. His work led to accepted methods for calculatin
  • Career: Upon completing his PhD in 1923, Urey gained a fellowship by the American-Scandinavian Foundation to study at the Niels Bohr Institute in Copenhagen under the Danish physicist.
  • Career: Returning to United States, he received two offers - a fellowship to Harvard University and a research associate at Johns Hopkins University. He chose the latter.
  • Career: In 1929, he was appointed as an associate professor of Chemistry at the Columbia University. Following year, along with Arthur Ruark, Urey penned ‘Atoms, Quanta and Molecules’. The book was one of the first written works on quantum mechanics and its appl
  • Career: During the 1930s, the theory of isotopes had been developed. Chemists from around the world were aware that an element may consist of atoms with the same number of protons but different masses. While the isotopes of carbon, nitrogen and oxygen had been di
  • Career: Along with a fellow chemist, Murphy, Urey conducted a series of experiments that could help him calculate about the isotopes of hydrogen. He even travelled to cryogenics laboratory at the National Bureau of Standards in Washington DC to obtain liquid hydr
  • Career: With the help of Ferdinand Brickwedde and Murphy, Urey conducted experimental research. He evaporated hydrogen multiple times. Finally, the trio saw the Balmer lines for ‘Heavy Hydrogen’ which was seven times intense than normal. It was then that they wer
  • Career: In 1932, Urey along with Murphy and Brickwedde published a paper that publically stated the discovery of deuterium. Same year, he was promoted to the post of Professor at Columbia University. He also founded the Journal of Chemical Physics and served as i
  • Career: In 1934, Urey was awarded a Nobel Prize in Chemistry for his discovery of heavy hydrogen. From 1940 until 1945, he chaired the position of Director of War Research, Atomic Bomb Project, Columbia University
  • Career: Urey’s investigation and research did not stop with deuterium. He continued to find out more about the isotopes of carbon, nitrogen, hydrogen, oxygen and sulphur. He continuously developed successful methods for separating rarer isotopes of all these elem
  • Career: By the time World War II broke out, Urey had come to prominence in the scientific world and was popularly called the world expert on isotope separation. However, until then, he dealt with lighter element only. In 1939, he published papers that gave an ins
  • Career: When Danish physicist Neils Bohr stated that uranium 235 was potentially fissile, his recommendation came under scrutiny. To clear doubts, Urey began to study about uranium intensively. He used all the experimental techniques right from gaseous diffusion
  • Career: In 1941, he was part of the team of the Office of Scientific Research and Development that conducted the uranium research. Following year, he travelled to England with George B Pegram to establish co-operation on development of the atomic bomb.
  • Career: Urey was appointed as the head of the wartime Substitute Alloy Materials Laboratory at Columbia. It was only in 1943 that the Manhattan Project gained momentum. Just as expected the operation which was huge and complex was marred by various problems. Deve
  • Career: Towards the end of 1943, Urey had a workforce of 700 people working under him. The gaseous diffusion process had its own technical challenges but was more encouraging than the rest. It eventually was successfully developed and became the sole method used
  • Career: Following World War II, Urey took up the post of a Distinguished Service Professor of Chemistry at the Institute for Nuclear Studies at University of Chicago. In 1952, he became Ryerson professor of chemistry.
  • Career: During 1956 and 1957, he was George Eastman Visiting Professor at the University of Oxford, and in 1958 took up his post as Professor-at-Large, University of California.
  • Career: Post war, Urey all through campaigned against military control of nuclear energy. He instead supported the creation of Atomic Energy Commission. Urey also went on lecture tours against war and became actively involved in Congressional debates regarding nu
  • Career: Towards the end of his life, Urey dedicated himself to research programs on planetary sciences. He came out with the book, ‘The Planets: Their Origin and Development’ in which he mentioned a detailed chronology of the origin of Earth, Moon, meteorites and
  • Career: Harold Urey is best remembered as the world expert on isotope separation. His pioneering work came during the 1930s and 1940s decade when he started working on separation of isotopes. It was due to his rigorous experimental work that finally deuterium, an
  • Career: In 1934, Urey won the Nobel Prize in Chemistry for his discovery of deuterium. Same year, he also received the Willard Gibbs Medal by the American Chemical Society.
  • Career: In 1940, he was bestowed with the Davy Medal by Royal Society, London. Three years later, he was awarded Franklin Medal and in 1946 was the proud recipient of Medal for Merit for his work on Manhattan Project.
  • Career: Between 1954 and 1955, Urey was thrice honoured, first with Cordoza Award, later with Honor Scroll Award by American Institute of Chemists ad later with Joseph Priestley Award.
  • Career: Urey married Frieda in 1926 at Lawrence, Kansas. The couple was blessed with four children, Gertrude Bessie (Elisabeth) in 1927, Frieda Rebecca in 1929, Mary Alice in 1934 and John Clayton Urey in 1939.
  • Career: He breathed his last on January 5, 1981, at La Jolla, California. He was buried at the Fairfield Cemetery in DeKalb County, Indiana.
  • Career: A lunar impact crater and asteroid 4716 has been named after him.
  • Major Works: Harold Urey is best remembered as the world expert on isotope separation. His pioneering work came during the 1930s and 1940s decade when he started working on separation of isotopes. It was due to his rigorous experimental work that finally deuterium, an
  • Major Works: In 1934, Urey won the Nobel Prize in Chemistry for his discovery of deuterium. Same year, he also received the Willard Gibbs Medal by the American Chemical Society.
  • Major Works: In 1940, he was bestowed with the Davy Medal by Royal Society, London. Three years later, he was awarded Franklin Medal and in 1946 was the proud recipient of Medal for Merit for his work on Manhattan Project.
  • Major Works: Between 1954 and 1955, Urey was thrice honoured, first with Cordoza Award, later with Honor Scroll Award by American Institute of Chemists ad later with Joseph Priestley Award.
  • Major Works: Urey married Frieda in 1926 at Lawrence, Kansas. The couple was blessed with four children, Gertrude Bessie (Elisabeth) in 1927, Frieda Rebecca in 1929, Mary Alice in 1934 and John Clayton Urey in 1939.
  • Major Works: He breathed his last on January 5, 1981, at La Jolla, California. He was buried at the Fairfield Cemetery in DeKalb County, Indiana.
  • Major Works: A lunar impact crater and asteroid 4716 has been named after him.
  • Awards Achievements: In 1934, Urey won the Nobel Prize in Chemistry for his discovery of deuterium. Same year, he also received the Willard Gibbs Medal by the American Chemical Society.
  • Awards Achievements: In 1940, he was bestowed with the Davy Medal by Royal Society, London. Three years later, he was awarded Franklin Medal and in 1946 was the proud recipient of Medal for Merit for his work on Manhattan Project.
  • Awards Achievements: Between 1954 and 1955, Urey was thrice honoured, first with Cordoza Award, later with Honor Scroll Award by American Institute of Chemists ad later with Joseph Priestley Award.
  • Awards Achievements: Urey married Frieda in 1926 at Lawrence, Kansas. The couple was blessed with four children, Gertrude Bessie (Elisabeth) in 1927, Frieda Rebecca in 1929, Mary Alice in 1934 and John Clayton Urey in 1939.
  • Awards Achievements: He breathed his last on January 5, 1981, at La Jolla, California. He was buried at the Fairfield Cemetery in DeKalb County, Indiana.
  • Awards Achievements: A lunar impact crater and asteroid 4716 has been named after him.
  • Personal Life Legacy: Urey married Frieda in 1926 at Lawrence, Kansas. The couple was blessed with four children, Gertrude Bessie (Elisabeth) in 1927, Frieda Rebecca in 1929, Mary Alice in 1934 and John Clayton Urey in 1939.
  • Personal Life Legacy: He breathed his last on January 5, 1981, at La Jolla, California. He was buried at the Fairfield Cemetery in DeKalb County, Indiana.
  • Personal Life Legacy: A lunar impact crater and asteroid 4716 has been named after him.