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Henry DeWolf "Harry" Smyth (; May 1, 1898September 11, 1986) was an American
physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate cau ...
,
diplomat A diplomat (from grc, δίπλωμα; romanized ''diploma'') is a person appointed by a state or an intergovernmental institution such as the United Nations or the European Union to conduct diplomacy with one or more other states or interna ...
, and
bureaucrat A bureaucrat is a member of a bureaucracy and can compose the administration of any organization of any size, although the term usually connotes someone within an institution of government. The term ''bureaucrat'' derives from "bureaucracy", w ...
. He played a number of key roles in the early development of nuclear energy, as a participant in the
Manhattan Project The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project w ...
, a member of the U.S. Atomic Energy Commission (AEC), and U.S. ambassador to the
International Atomic Energy Agency The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was established in 195 ...
(IAEA). Educated at
Princeton University Princeton University is a private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the United States and one of the ...
and the
University of Cambridge , mottoeng = Literal: From here, light and sacred draughts. Non literal: From this place, we gain enlightenment and precious knowledge. , established = , other_name = The Chancellor, Masters and Schola ...
, he was a faculty member in Princeton's Department of Physics from 1924 to 1966. He chaired the department from 1935 to 1949. His early research was on the
ionization Ionization, or Ionisation is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons, often in conjunction with other chemical changes. The resulting electrically charged atom or molecul ...
of gases, but his interests shifted toward
nuclear physics Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions, in addition to the study of other forms of nuclear matter. Nuclear physics should not be confused with atomic physics, which studies t ...
beginning in the mid-1930s. During
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
he was a member of the
National Defense Research Committee The National Defense Research Committee (NDRC) was an organization created "to coordinate, supervise, and conduct scientific research on the problems underlying the development, production, and use of mechanisms and devices of warfare" in the Un ...
's Uranium Committee and a consultant on the Manhattan Project. He wrote the Manhattan Project's first public official history, which came to be known as the Smyth Report. On the AEC from 1949 to 1954, Smyth initially argued unsuccessfully against a crash course to develop the
hydrogen bomb A thermonuclear weapon, fusion weapon or hydrogen bomb (H bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs, a more compact size, a lowe ...
and in favor of international control of
nuclear weapons A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions ( thermonuclear bomb), producing a nuclear explosion. Both bom ...
, before switching to support of the weapon. Following the 1954 Oppenheimer security hearing, Smyth was the sole member of the commission to vote against stripping
J. Robert Oppenheimer J. Robert Oppenheimer (; April 22, 1904 – February 18, 1967) was an American theoretical physicist. A professor of physics at the University of California, Berkeley, Oppenheimer was the wartime head of the Los Alamos Laboratory and is oft ...
's
security clearance A security clearance is a status granted to individuals allowing them access to classified information (state or organizational secrets) or to restricted areas, after completion of a thorough background check. The term "security clearance" is ...
. As IAEA ambassador from 1961 to 1970 he played an important role in the realization of the
Nuclear Non-Proliferation Treaty The Treaty on the Non-Proliferation of Nuclear Weapons, commonly known as the Non-Proliferation Treaty or NPT, is an international treaty whose objective is to prevent the spread of nuclear weapons and weapons technology, to promote cooperation ...
. He received the
Atoms for Peace Award The Atoms for Peace Award was established in 1955 through a grant of $1,000,000 by the Ford Motor Company Fund. An independent nonprofit corporation was set up to administer the award for the development or application of peaceful nuclear technol ...
in 1968 and the
U.S. State Department The United States Department of State (DOS), or State Department, is an executive department of the U.S. federal government responsible for the country's foreign policy and relations. Equivalent to the ministry of foreign affairs of other n ...
's
Distinguished Honor Award The Distinguished Honor Award is an award of the United States Department of State. Similar versions of the same award exist for the former U.S. Information Agency, Arms Control and Disarmament Agency, and USAID. It is presented to groups or i ...
in 1970. The
American Nuclear Society The American Nuclear Society (ANS) is an international, not-for-profit organization of scientists, engineers, and industry professionals that promote the field of nuclear engineering and related disciplines. ANS is composed of three communities: ...
's award for "nuclear statesmanship", of which he was the first recipient, is named in his honor.


Personal life

Smyth was born May 1, 1898, in Clinton, New York, to Ruth Anne Phelps and Charles Henry Smyth, Jr., a professor of
geology Geology () is a branch of natural science concerned with Earth and other Astronomical object, astronomical objects, the features or rock (geology), rocks of which it is composed, and the processes by which they change over time. Modern geology ...
at
Hamilton College Hamilton College is a private liberal arts college in Clinton, Oneida County, New York. It was founded as Hamilton-Oneida Academy in 1793 and was chartered as Hamilton College in 1812 in honor of inaugural trustee Alexander Hamilton, following ...
.
Woodrow Wilson Thomas Woodrow Wilson (December 28, 1856February 3, 1924) was an American politician and academic who served as the 28th president of the United States from 1913 to 1921. A member of the Democratic Party, Wilson served as the president of ...
, then
President of Princeton University Princeton University, founded in 1746 as the College of New Jersey, is a private Ivy League research university located in Princeton, New Jersey. The university is led by a president, who is selected by the board of trustees by ballot. The pres ...
, convinced Smyth ''père'' to join the faculty at Princeton, and in 1905 the family moved to
Princeton, New Jersey Princeton is a municipality with a borough form of government in Mercer County, in the U.S. state of New Jersey. It was established on January 1, 2013, through the consolidation of the Borough of Princeton and Princeton Township, both of w ...
. Henry DeWolf Smyth's elder brother, Charles Phelps Smyth, attended the same
primary Primary or primaries may refer to: Arts, entertainment, and media Music Groups and labels * Primary (band), from Australia * Primary (musician), hip hop musician and record producer from South Korea * Primary Music, Israeli record label Works ...
and
secondary Secondary may refer to: Science and nature * Secondary emission, of particles ** Secondary electrons, electrons generated as ionization products * The secondary winding, or the electrical or electronic circuit connected to the secondary winding i ...
schools as Henry. The elder brother also received undergraduate and master's degrees from Princeton, but in
chemistry Chemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds made of atoms, molecules and ions: their composition, structure, proper ...
. He earned his PhD at
Harvard University Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of highe ...
but like Henry and their father became a faculty member at Princeton. Both brothers served in the Chemical Warfare Service in
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
and on the
Manhattan Project The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project w ...
. Henry DeWolf Smyth married Mary de Coningh on June 30, 1936.He was a member of the Democratic Party.


Education

In Princeton, Smyth attended Miss Fine's School, which later became the
Princeton Day School Princeton Day School is a private coeducational day school located in Princeton, in Mercer County, New Jersey, United States, serving students in pre-kindergarten through twelfth grade. The largest division is the Upper School (grades 9–12), ...
, and the
Lawrenceville School The Lawrenceville School is a coeducational preparatory school for boarding and day students located in the Lawrenceville section of Lawrence Township, in Mercer County, New Jersey, United States. Lawrenceville is a member of the Eight Scho ...
. After graduating from Lawrenceville in 1914, he entered Princeton University, where he received a classical education and graduated first in his class in 1918. He was elected to
Phi Beta Kappa The Phi Beta Kappa Society () is the oldest academic honor society in the United States, and the most prestigious, due in part to its long history and academic selectivity. Phi Beta Kappa aims to promote and advocate excellence in the liberal ...
and
Sigma Xi Sigma Xi, The Scientific Research Honor Society () is a highly prestigious, non-profit honor society for scientists and engineers. Sigma Xi was founded at Cornell University by a junior faculty member and a small group of graduate students in 1886 ...
. Smyth remained at Princeton to do graduate work; he and
Allen Shenstone Allen Goodrich Shenstone, (July 27, 1893 – February 16, 1980) was a Canadian physicist. He earned bachelor's, master's, and Ph.D. degrees from Princeton University, as well as a Bachelor of Arts from the University of Cambridge. After a brie ...
were the only graduate students in the Department of Physics. Smyth earned a
master's degree A master's degree (from Latin ) is an academic degree awarded by universities or colleges upon completion of a course of study demonstrating mastery or a high-order overview of a specific field of study or area of professional practice.
and
PhD PHD or PhD may refer to: * Doctor of Philosophy (PhD), an academic qualification Entertainment * '' PhD: Phantasy Degree'', a Korean comic series * '' Piled Higher and Deeper'', a web comic * Ph.D. (band), a 1980s British group ** Ph.D. (Ph.D. al ...
in physics from Princeton in 1920 and 1921, respectively, studying under
Karl Taylor Compton Karl Taylor Compton (September 14, 1887 – June 22, 1954) was a prominent American physicist and president of the Massachusetts Institute of Technology (MIT) from 1930 to 1948. The early years (1887–1912) Karl Taylor Compton was born in ...
. The
U.S. National Research Council The National Academies of Sciences, Engineering, and Medicine (also known as NASEM or the National Academies) are the collective scientific national academy of the United States. The name is used interchangeably in two senses: (1) as an umbrell ...
awarded Smyth a fellowship, and he joined the
Cavendish Laboratory The Cavendish Laboratory is the Department of Physics at the University of Cambridge, and is part of the School of Physical Sciences. The laboratory was opened in 1874 on the New Museums Site as a laboratory for experimental physics and is named ...
at the
University of Cambridge , mottoeng = Literal: From here, light and sacred draughts. Non literal: From this place, we gain enlightenment and precious knowledge. , established = , other_name = The Chancellor, Masters and Schola ...
. There he studied under
Ernest Rutherford Ernest Rutherford, 1st Baron Rutherford of Nelson, (30 August 1871 – 19 October 1937) was a New Zealand physicist who came to be known as the father of nuclear physics. ''Encyclopædia Britannica'' considers him to be the greatest ...
and earned a second PhD in 1923. At Cambridge he was affiliated with
Caius College Gonville and Caius College, often referred to simply as Caius ( ), is a constituent college of the University of Cambridge in Cambridge, England. Founded in 1348, it is the fourth-oldest of the University of Cambridge's 31 colleges and one of t ...
and formed a friendship with
Pyotr Kapitsa Pyotr Leonidovich Kapitsa or Peter Kapitza ( Russian: Пётр Леонидович Капица, Romanian: Petre Capița ( – 8 April 1984) was a leading Soviet physicist and Nobel laureate, best known for his work in low-temperature physics ...
, a
Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
physicist who would go on to win the
Nobel Prize in Physics ) , image = Nobel Prize.png , alt = A golden medallion with an embossed image of a bearded man facing left in profile. To the left of the man is the text "ALFR•" then "NOBEL", and on the right, the text (smaller) "NAT•" then " ...
and work briefly on the
Soviet atomic bomb project The Soviet atomic bomb project was the classified research and development program that was authorized by Joseph Stalin in the Soviet Union to develop nuclear weapons during and after World War II. Although the Soviet scientific community disc ...
.


Early career

During World War I, Smyth worked in the Chemical Warfare Service, and at the
Aberdeen Proving Ground Aberdeen Proving Ground (APG) (sometimes erroneously called Aberdeen Proving ''Grounds'') is a U.S. Army facility located adjacent to Aberdeen, Harford County, Maryland, United States. More than 7,500 civilians and 5,000 military personnel work a ...
. After earning his second PhD, he returned to Princeton for the last year of his NRC fellowship. During his early years on the Princeton faculty he lived in the Graduate College west of the main campus. He was appointed an instructor in 1924, an assistant professor in 1925, an associate professor in 1929, and a full professor in 1936. In 1935 he became chairman of the Department of Physics, a position he held until 1949. During 1931–32 he was a
Guggenheim Fellow Guggenheim Fellowships are grants that have been awarded annually since by the John Simon Guggenheim Memorial Foundation to those "who have demonstrated exceptional capacity for productive scholarship or exceptional creative ability in the ar ...
at the
University of Göttingen The University of Göttingen, officially the Georg August University of Göttingen, (german: Georg-August-Universität Göttingen, known informally as Georgia Augusta) is a public research university in the city of Göttingen, Germany. Founded ...
, where he studied the spectra of
triatomic molecule Triatomic molecules are molecules composed of three atoms, of either the same or different chemical elements. Examples include H2O, CO2 (pictured), HCN and O3 (ozone) Molecular vibrations The vibrational modes of a triatomic molecule can be ...
s, particularly
carbon dioxide Carbon dioxide ( chemical formula ) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is t ...
, with
James Franck James Franck (; 26 August 1882 – 21 May 1964) was a German physicist who won the 1925 Nobel Prize for Physics with Gustav Hertz "for their discovery of the laws governing the impact of an electron upon an atom". He completed his doctorate i ...
. Smyth's early research was in
spectroscopy Spectroscopy is the field of study that measures and interprets the electromagnetic spectra that result from the interaction between electromagnetic radiation and matter as a function of the wavelength or frequency of the radiation. Matter ...
, focusing on
ionization Ionization, or Ionisation is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons, often in conjunction with other chemical changes. The resulting electrically charged atom or molecul ...
of gases by impact with
electrons The electron ( or ) is a subatomic particle with a negative one elementary electric charge. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have n ...
as a means to study the gases' critical
energy levels A quantum mechanical system or particle that is bound—that is, confined spatially—can only take on certain discrete values of energy, called energy levels. This contrasts with classical particles, which can have any amount of energy. The ...
. He published his first research article, on the radiating potentials of
nitrogen Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at se ...
gas, in 1919; this became the basis of his first dissertation. In a 1922 article, he described a method for determining the
ionization energy Ionization, or Ionisation is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons, often in conjunction with other chemical changes. The resulting electrically charged atom or molecule ...
of a molecule using anode rays and demonstrated the method on mercury vapor. In the following year he used this same method to study nitrogen. He also published on the ionization of
hydrogen Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen is the lightest element. At standard conditions hydrogen is a gas of diatomic molecules having the formula . It is colorless, odorless, tasteless, non-to ...
,
carbon dioxide Carbon dioxide ( chemical formula ) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature. In the air, carbon dioxide is t ...
,
nitrous oxide Nitrous oxide (dinitrogen oxide or dinitrogen monoxide), commonly known as laughing gas, nitrous, or nos, is a chemical compound, an oxide of nitrogen with the formula . At room temperature, it is a colourless non-flammable gas, and ha ...
,
nitrogen dioxide Nitrogen dioxide is a chemical compound with the formula . It is one of several nitrogen oxides. is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year for use primarily in the productio ...
,
water vapor (99.9839 °C) , - , Boiling point , , - , specific gas constant , 461.5 J/( kg·K) , - , Heat of vaporization , 2.27 MJ/kg , - , Heat capacity , 1.864 kJ/(kg·K) Water vapor, water vapour or aqueous vapor is the gaseous p ...
,
sulfur dioxide Sulfur dioxide (IUPAC-recommended spelling) or sulphur dioxide (traditional Commonwealth English) is the chemical compound with the formula . It is a toxic gas responsible for the odor of burnt matches. It is released naturally by volcanic a ...
, and
carbon disulfide Carbon disulfide (also spelled as carbon disulphide) is a neurotoxic, colorless, volatile liquid with the formula and structure . The compound is used frequently as a building block in organic chemistry as well as an industrial and chemical n ...
. As
Robert H. Dicke Robert Henry Dicke (; May 6, 1916 – March 4, 1997) was an American astronomer and physicist who made important contributions to the fields of astrophysics, atomic physics, cosmology and gravity. He was the Albert Einstein Professor in Scien ...
, Val Logsdon Fitch, and Rubby Sherr wrote in 1989, "By 1935 his 30 published papers established him as a leading experimentalist" in the field. In 1929
Kenneth Bainbridge Kenneth Tompkins Bainbridge (July 27, 1904 – July 14, 1996) was an American physicist at Harvard University who did work on cyclotron research. His precise measurements of mass differences between nuclear isotopes allowed him to confirm Alber ...
completed his PhD dissertation at Princeton working under Smyth, using anode rays to search for
element 87 Francium is a chemical element with the symbol Fr and atomic number 87. It is extremely radioactive; its most stable isotope, francium-223 (originally called actinium K after the natural decay chain it appears in), has a half-life of only 22&nb ...
. In the mid-1930s, Smyth began to shift his interest to
nuclear physics Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions, in addition to the study of other forms of nuclear matter. Nuclear physics should not be confused with atomic physics, which studies t ...
, inspired by
James Chadwick Sir James Chadwick, (20 October 1891 – 24 July 1974) was an English physicist who was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932. In 1941, he wrote the final draft of the MAUD Report, which inspi ...
's discovery of the
neutron The neutron is a subatomic particle, symbol or , which has a neutral (not positive or negative) charge, and a mass slightly greater than that of a proton. Protons and neutrons constitute the atomic nucleus, nuclei of atoms. Since protons and ...
, John Cockcroft and
Ernest Walton Ernest Thomas Sinton Walton (6 October 1903 – 25 June 1995) was an Irish physicist and Nobel laureate. He is best known for his work with John Cockcroft to construct one of the earliest types of particle accelerator, the Cockcroft–Walton ...
splitting the atom Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller nuclei. The fission process often produces gamma photons, and releases a very large amount of energy even by the energetic standards of radioac ...
, and
Ernest Lawrence Ernest Orlando Lawrence (August 8, 1901 – August 27, 1958) was an American nuclear physicist and winner of the Nobel Prize in Physics in 1939 for his invention of the cyclotron. He is known for his work on uranium-isotope separation fo ...
's invention of the
cyclotron A cyclotron is a type of particle accelerator invented by Ernest O. Lawrence in 1929–1930 at the University of California, Berkeley, and patented in 1932. Lawrence, Ernest O. ''Method and apparatus for the acceleration of ions'', filed: Jan ...
. Three of his last research articles concerned detection of
triatomic hydrogen Triatomic hydrogen or H3 is an unstable triatomic molecule containing only hydrogen. Since this molecule contains only three atoms of hydrogen it is the simplest triatomic molecule and it is relatively simple to numerically solve the quantum mechan ...
and
helium-3 Helium-3 (3He see also helion) is a light, stable isotope of helium with two protons and one neutron (the most common isotope, helium-4, having two protons and two neutrons in contrast). Other than protium (ordinary hydrogen), helium-3 is the ...
. His appointment as department chair forced him to devote more time to administrative work, at the expense of research.
Richard Feynman Richard Phillips Feynman (; May 11, 1918 – February 15, 1988) was an American theoretical physicist, known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, the physics of the superfl ...
had achieved an unprecedented perfect score on the Princeton University entrance exams, and applied for admission. While department chair, Smyth questioned his admission, writing to
Philip M. Morse Philip McCord Morse (August 6, 19035 September 1985), was an American physicist, administrator and pioneer of operations research (OR) in World War II. He is considered to be the father of operations research in the U.S. Biography Morse graduat ...
to ask: "Is Feynman Jewish? We have no definite rule against Jews but like to keep their proportion in our department reasonably small". Morse conceded that Feynman was indeed Jewish, but reassured Smyth that Feynman's "physiognomy and manner, however, show no trace of this characteristic". As department chair, he had two cyclotrons built at Princeton, one in 1935 and the other in 1946. He was a member of the subcommittee on physics of the National Research Council from 1928 to 1935. In 1936 Smyth responded to media criticism of
basic science Basic research, also called pure research or fundamental research, is a type of scientific research with the aim of improving scientific theories for better understanding and prediction of natural or other phenomena. In contrast, applied researc ...
research as "useless" by suggesting that seemingly useless research could turn out to be very useful later.


World War II

During
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
, Smyth was involved in helping the United States build the
atomic bomb A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions ( thermonuclear bomb), producing a nuclear explosion. Both bomb ...
. From 1941 to 1943 he was a member of the
National Defense Research Committee The National Defense Research Committee (NDRC) was an organization created "to coordinate, supervise, and conduct scientific research on the problems underlying the development, production, and use of mechanisms and devices of warfare" in the Un ...
(NDRC)'s Uranium Committee charged with producing
fissile In nuclear engineering, fissile material is material capable of sustaining a nuclear fission chain reaction. By definition, fissile material can sustain a chain reaction with neutrons of thermal energy. The predominant neutron energy may be t ...
material for the bomb. Smyth proposed the
electromagnetic In physics, electromagnetism is an interaction that occurs between particles with electric charge. It is the second-strongest of the four fundamental interactions, after the strong force, and it is the dominant force in the interactions o ...
methods that were used to enrich the first large
U-235 Uranium-235 (235U or U-235) is an isotope of uranium making up about 0.72% of natural uranium. Unlike the predominant isotope uranium-238, it is fissile, i.e., it can sustain a nuclear chain reaction. It is the only fissile isotope that exist ...
samples for the project. He also oversaw a
nuclear fission Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller nuclei. The fission process often produces gamma photons, and releases a very large amount of energy even by the energetic standards of radio ...
-related project for the
Office of Scientific Research and Development The Office of Scientific Research and Development (OSRD) was an agency of the United States federal government created to coordinate scientific research for military purposes during World War II. Arrangements were made for its creation during May 1 ...
(OSRD). During 1943–45 he was a consultant to the Manhattan Project, which built and tested the weapon, and associate director of the
University of Chicago The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park neighborhood. The University of Chicago is consistently ranked among the b ...
's
Metallurgical Laboratory The Metallurgical Laboratory (or Met Lab) was a scientific laboratory at the University of Chicago that was established in February 1942 to study and use the newly discovered chemical element plutonium. It researched plutonium's chemistry and m ...
, which contributed to the Manhattan Project. At the Metallurgical Laboratory he headed research on heavy water. He remained chairman of Princeton's physics department throughout the war, and the attendant obligations forced him to participate less actively in the project's later stages. In August 1944 General
Leslie Groves Lieutenant General Leslie Richard Groves Jr. (17 August 1896 – 13 July 1970) was a United States Army Corps of Engineers officer who oversaw the construction of the Pentagon and directed the Manhattan Project, a top secret research project ...
, director of the Manhattan Project, appointed Smyth to the Postwar Policy Committee, which was charged with proposing government policy for research and development of atomic energy after the war was over. The committee recommended that a national commission modeled on the OSRD fund and oversee continued production and fundamental research in government laboratories, universities, and the private sector.


Smyth Report

Smyth advocated within the NDRC for a comprehensive report to be released to the public following the weapon's first use.
Vannevar Bush Vannevar Bush ( ; March 11, 1890 – June 28, 1974) was an American engineer, inventor and science administrator, who during World War II headed the U.S. Office of Scientific Research and Development (OSRD), through which almost all warti ...
, who as civilian director of the OSRD oversaw the NDRC, agreed, and selected Smyth to write the report following the recommendation of NDRC chairman
James Bryant Conant James Bryant Conant (March 26, 1893 – February 11, 1978) was an American chemist, a transformative President of Harvard University, and the first U.S. Ambassador to West Germany. Conant obtained a Ph.D. in Chemistry from Harvard in 1916 ...
. Groves granted Smyth unlimited access, waiving his usual security-minded insistence on compartmentalization. Smyth wrote what became known as the Smyth Report in his office in Princeton's Palmer Laboratory, which later became the
Frist Campus Center Frist Campus Center is a focal point of social life at Princeton University. The campus center is a combination of the former Palmer Physics Lab, and a modern addition completed in 2001. It was endowed with money from the fortune the Frist family ...
. The report was first released to the press on August 12, 1945, days after the attacks on
Hiroshima is the capital of Hiroshima Prefecture in Japan. , the city had an estimated population of 1,199,391. The gross domestic product (GDP) in Greater Hiroshima, Hiroshima Urban Employment Area, was US$61.3 billion as of 2010. Kazumi Matsui ...
and
Nagasaki is the capital and the largest city of Nagasaki Prefecture on the island of Kyushu in Japan. It became the sole port used for trade with the Portuguese and Dutch during the 16th through 19th centuries. The Hidden Christian Sites in the ...
. The
Government Printing Office The United States Government Publishing Office (USGPO or GPO; formerly the United States Government Printing Office) is an agency of the legislative branch of the United States Federal government. The office produces and distributes information ...
could not print enough copies to meet demand, so Smyth persuaded the director of the
Princeton University Press Princeton University Press is an independent publisher with close connections to Princeton University. Its mission is to disseminate scholarship within academia and society at large. The press was founded by Whitney Darrow, with the financial ...
to print more. By the end of the Press's 1946 fiscal year it had printed 103,000 copies. Smyth held the
copyright A copyright is a type of intellectual property that gives its owner the exclusive right to copy, distribute, adapt, display, and perform a creative work, usually for a limited time. The creative work may be in a literary, artistic, educatio ...
to the work to prevent others from claiming it, but he permitted widespread reproduction, essentially releasing it into the
public domain The public domain (PD) consists of all the creative work to which no exclusive intellectual property rights apply. Those rights may have expired, been forfeited, expressly waived, or may be inapplicable. Because those rights have expired ...
. He later reported that "my financial balance from the Smyth Report is minus two dollars, the copyright fee." In the report, Smyth called it "a semi-technical report which it is hoped men of science in this country can use to help their fellow citizens in reaching wise decisions" in the new
Atomic Age The Atomic Age, also known as the Atomic Era, is the period of history following the detonation of the first nuclear weapon, The Gadget at the ''Trinity'' test in New Mexico, on July 16, 1945, during World War II. Although nuclear chain reaction ...
. At the urging of his superiors, he removed several discussions of the bomb's moral implications and its creators' unease. Rebecca Schwartz argued that Smyth's academic background and his report's security-driven focus on physics at the expense of engineering caused the Smyth Report to promote a public perception of the Manhattan Project as primarily an achievement of physicists.


Postwar

Following the war, Smyth returned full-time to his duties at Princeton. He continued to chair the Physics Department and was named the
Joseph Henry Joseph Henry (December 17, 1797– May 13, 1878) was an American scientist who served as the first Secretary of the Smithsonian Institution. He was the secretary for the National Institute for the Promotion of Science, a precursor of the Smit ...
Professor of Physics in 1946. During this time he spoke and wrote regularly about nuclear energy and
science policy Science policy is concerned with the allocation of resources for the conduct of science towards the goal of best serving the public interest. Topics include the funding of science, the careers of scientists, and the translation of scientific disc ...
and worked to expand the physics department. In early 1949, physicist
Robert Bacher Robert Fox Bacher (August 31, 1905November 18, 2004) was an American nuclear physicist and one of the leaders of the Manhattan Project. Born in Loudonville, Ohio, Bacher obtained his undergraduate degree and doctorate from the University of Mic ...
stepped down from the Atomic Energy Commission. He and AEC Chairman
David Lilienthal David Eli Lilienthal (July 8, 1899 – January 15, 1981) was an American attorney and public administrator, best known for his Presidential Appointment to head Tennessee Valley Authority and later the Atomic Energy Commission (AEC). He had p ...
wanted a physicist to replace Bacher, and they ultimately recommended Smyth for the position. President
Harry Truman Harry S. Truman (May 8, 1884December 26, 1972) was the 33rd president of the United States, serving from 1945 to 1953. A leader of the Democratic Party, he previously served as the 34th vice president from January to April 1945 under Franklin ...
nominated Smyth to the AEC later that year, prompting Smyth to resign as Physics Department chairman. (His old colleague Allen Shenstone took up the post.) Smyth was the commission's only scientist. He spent his first weeks in the position attending hearings of the U.S. Congress's Joint Committee on Atomic Energy. Led by Senator
Bourke Hickenlooper Bourke Blakemore Hickenlooper (July 21, 1896 – September 4, 1971), was an American politician and member of the Republican Party, first elected to statewide office in Iowa as lieutenant governor, serving from 1939 to 1943 and then as the 29 ...
, the hearings inquired into a small amount of
uranium Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weak ...
that was alleged to be unaccounted for in AEC labs. Smyth later condemned the hearings as grounded in misconceptions about the work of nuclear scientists. Following the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...
's successful atomic bomb test in August 1949, the United States was considering a crash course to develop a
hydrogen bomb A thermonuclear weapon, fusion weapon or hydrogen bomb (H bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs, a more compact size, a lowe ...
. The AEC's nine-member General Advisory Committee, chaired by
J. Robert Oppenheimer J. Robert Oppenheimer (; April 22, 1904 – February 18, 1967) was an American theoretical physicist. A professor of physics at the University of California, Berkeley, Oppenheimer was the wartime head of the Los Alamos Laboratory and is oft ...
, recommended unanimously in October 1949 against such a course. Although Smyth did not think that committee's report was well-constructed, he also initially opposed an H-bomb program. In early November he became one of three of the five AEC commissioners to take a stance in opposition. After looking at how the proposed weapon might be used and at what the domestic and international reaction would be to any use, Smyth felt that the H-bomb would be of little utility, and instead favored reopening discussions towards the international control of nuclear weapons. But by late January 1950, Smyth's position on the question was wavering towards being in favor of moving forward with development. In any case, on January 31, 1950, Truman decided to authorize a hydrogen bomb program. Smyth became a supporter of the weapon, and in February 1950, endorsed a specific program for the future production of H-bombs. In his autobiography, Smyth's Princeton colleague
John Archibald Wheeler John Archibald Wheeler (July 9, 1911April 13, 2008) was an American theoretical physicist. He was largely responsible for reviving interest in general relativity in the United States after World War II. Wheeler also worked with Niels Bohr in ...
recalled that Smyth recruited him to the hydrogen bomb project and expressed support for the project in response to the Soviet test. Indeed, by the time of that test Smyth was looking for ways to use a successful thermonuclear explosion's psychological impact to benefit American foreign policy aims. Urged by a journal editor to publish his recollections of the H-bomb decision, Smyth drafted several attempts at an article but eventually abandoned it. Nonetheless, in subsequent years Smyth became defensive about his shift in position on the hydrogen bomb, saying that he had maintained a consistent thought process regarding it and that once his questions about the utility of the weapon had been resolved, his conclusion about the question changed accordingly. In 1953 Smyth and John A. Hall served as principal advisors to President
Dwight Eisenhower Dwight David "Ike" Eisenhower (born David Dwight Eisenhower; ; October 14, 1890 – March 28, 1969) was an American military officer and statesman who served as the 34th president of the United States from 1953 to 1961. During World War I ...
in preparing his
Atoms for Peace "Atoms for Peace" was the title of a speech delivered by U.S. President Dwight D. Eisenhower to the UN General Assembly in New York City on December 8, 1953. The United States then launched an "Atoms for Peace" program that supplied equipment ...
speech to the
United Nations The United Nations (UN) is an intergovernmental organization whose stated purposes are to maintain international peace and security, develop friendly relations among nations, achieve international cooperation, and be a centre for harmoni ...
. The IAEA traces its origins to this speech. The 1954 Oppenheimer security hearing consisted of a panel considering whether to rescind Oppenheimer's
security clearance A security clearance is a status granted to individuals allowing them access to classified information (state or organizational secrets) or to restricted areas, after completion of a thorough background check. The term "security clearance" is ...
on suspicion that he was disloyal or a security risk, with the result that the panel decided to do so. Smyth was still the only scientist on the commission. Despite his personal dislike of Oppenheimer and pressure from the commission's new chairman,
Lewis Strauss Lewis Lichtenstein Strauss ( "straws"; January 31, 1896January 21, 1974) was an American businessman, philanthropist, and naval officer who served two terms on the U.S. Atomic Energy Commission (AEC), the second as its chairman. He was a major ...
, in confirmation of the panel's decision Smyth was the sole commissioner to vote against stripping Oppenheimer's clearance on June 29, 1954. Smyth's rationale for what
McGeorge Bundy McGeorge "Mac" Bundy (March 30, 1919 – September 16, 1996) was an American academic who served as the U.S. National Security Advisor to Presidents John F. Kennedy and Lyndon B. Johnson from 1961 through 1966. He was president of the Ford Foun ...
has called his "lonely but powerful dissent" was that the evidence against Oppenheimer was weak and even contrived and was easily outweighed by Oppenheimer's contributions to U.S. nuclear weapons efforts. Smyth resigned from the AEC on September 30 of that year out of frustration with Strauss. Eulogizing Oppenheimer in 1967, Smyth said of Oppenheimer's treatment, "Such a wrong can never be righted; such a blot on our history never erased.... We regret that his great work for his country was repaid so shabbily". Smyth returned to Princeton and served on several high-level administrative committees. This work included advising on the construction of a
particle accelerator A particle accelerator is a machine that uses electromagnetic fields to propel charged particles to very high speeds and energies, and to contain them in well-defined beams. Large accelerators are used for fundamental research in particle ...
built jointly with the
University of Pennsylvania The University of Pennsylvania (also known as Penn or UPenn) is a Private university, private research university in Philadelphia. It is the fourth-oldest institution of higher education in the United States and is ranked among the highest- ...
and overseeing Project Matterhorn, which became the
Princeton Plasma Physics Laboratory Princeton Plasma Physics Laboratory (PPPL) is a United States Department of Energy national laboratory for plasma physics and nuclear fusion science. Its primary mission is research into and development of fusion as an energy source. It is known ...
. He chaired the committee that chose Robert F. Goheen to succeed
Harold W. Dodds Harold Willis Dodds (June 28, 1889 – October 25, 1980) was the fifteenth president of Princeton University from 1933 to 1957. Early life and education Dodds was born on June 28, 1889, in Utica, Pennsylvania, the son of a professor of Bible ...
as President of Princeton. He also served as a consultant on nuclear power to
Congress A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...
, the AEC, and private industry. He retired from Princeton in 1966. Smyth was a fellow of the
American Physical Society The American Physical Society (APS) is a not-for-profit membership organization of professionals in physics and related disciplines, comprising nearly fifty divisions, sections, and other units. Its mission is the advancement and diffusion of k ...
and served as its vice president in 1956 and its president in 1957. He was elected to the
American Philosophical Society The American Philosophical Society (APS), founded in 1743 in Philadelphia, is a scholarly organization that promotes knowledge in the sciences and humanities through research, professional meetings, publications, library resources, and communit ...
in 1947 and the
American Academy of Arts and Sciences The American Academy of Arts and Sciences (abbreviation: AAA&S) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, a ...
in 1956. He was a member of the
Council on Foreign Relations The Council on Foreign Relations (CFR) is an American think tank specializing in U.S. foreign policy and international relations. Founded in 1921, it is a nonprofit organization that is independent and nonpartisan. CFR is based in New York Ci ...
.


IAEA representative

President President most commonly refers to: *President (corporate title) * President (education), a leader of a college or university * President (government title) President may also refer to: Automobiles * Nissan President, a 1966–2010 Japanese ...
John F. Kennedy appointed Smyth as the representative of the United States to the IAEA, a position with the rank of
Ambassador An ambassador is an official envoy, especially a high-ranking diplomat who represents a state and is usually accredited to another sovereign state or to an international organization as the resident representative of their own government or s ...
. Smyth assumed the position on June 13, 1961, following confirmation by the U.S. Senate. Smyth shared the organization's stated goal of developing nuclear technology for peaceful purposes. He helped develop what
Glenn Seaborg Glenn Theodore Seaborg (; April 19, 1912February 25, 1999) was an American chemist whose involvement in the synthesis, discovery and investigation of ten transuranium elements earned him a share of the 1951 Nobel Prize in Chemistry. His work i ...
later called "an unprecedented atmosphere of rapport" at the IAEA and played a crucial role in the adoption of the
Nuclear Non-Proliferation Treaty The Treaty on the Non-Proliferation of Nuclear Weapons, commonly known as the Non-Proliferation Treaty or NPT, is an international treaty whose objective is to prevent the spread of nuclear weapons and weapons technology, to promote cooperation ...
in 1970. He retired from the IAEA on August 31, 1970. In September 1961,
Harlan Cleveland Harlan Cleveland (January 19, 1918 – May 30, 2008) was an American diplomat, educator, and author. He served as Lyndon B. Johnson's U.S. Ambassador to NATO from 1965 to 1969, and earlier as U.S. Assistant Secretary of State for International ...
, then
Assistant Secretary of State Assistant Secretary of State (A/S) is a title used for many executive positions in the United States Department of State, ranking below the under secretaries. A set of six assistant secretaries reporting to the under secretary for political affairs ...
for International Organization Affairs, appointed Smyth to chair a committee to review U.S. policy toward the IAEA. The committee's report affirmed the importance of civilian uses of nuclear energy. In 1962 Cleveland again tapped Smyth, this time as an adviser to the
State Department The United States Department of State (DOS), or State Department, is an executive department of the U.S. federal government responsible for the country's foreign policy and relations. Equivalent to the ministry of foreign affairs of other na ...
on the IAEA. In this position Smyth advocated for a transfer of national nuclear safeguards to the IAEA. In December 1965, Smyth was elected Chairman of the Board of the
Universities Research Association The Universities Research Association is a non-profit association of more than 90 research universities, primarily but not exclusively in the United States. It has members also in Japan, Italy, and in the United Kingdon. It was founded in 1965 a ...
. During Smyth's tenure, the URA signed a contract with the U.S. government to construct and operate the National Accelerator Laboratory, which later became known as
Fermilab Fermi National Accelerator Laboratory (Fermilab), located just outside Batavia, Illinois, near Chicago, is a United States Department of Energy national laboratory specializing in high-energy particle physics. Since 2007, Fermilab has been oper ...
. Construction began, and research programs were planned. Smyth stepped down as chairman in 1970 but remained on the board. He also served on the board of
Associated Universities, Inc. Associated Universities, Inc. (AUI) is a research management corporation that builds and operates facilities for the research community. AUI is a not-for-profit 501(c)(3) corporation, headquartered in Washington, DC. The President is Dr. Adam ...
, which operated the
Brookhaven National Laboratory Brookhaven National Laboratory (BNL) is a United States Department of Energy national laboratory located in Upton, Long Island, and was formally established in 1947 at the site of Camp Upton, a former U.S. Army base and Japanese internment c ...
and
National Radio Astronomy Observatory The National Radio Astronomy Observatory (NRAO) is a federally funded research and development center of the United States National Science Foundation operated under cooperative agreement by Associated Universities, Inc. for the purpose of radio a ...
. Smyth received the
Atoms for Peace Award The Atoms for Peace Award was established in 1955 through a grant of $1,000,000 by the Ford Motor Company Fund. An independent nonprofit corporation was set up to administer the award for the development or application of peaceful nuclear technol ...
in 1968 (with Sigvard Eklund and
Abdus Salam Mohammad Abdus Salam Salam adopted the forename "Mohammad" in 1974 in response to the anti-Ahmadiyya decrees in Pakistan, similarly he grew his beard. (; ; 29 January 192621 November 1996) was a Punjabis, Punjabi Pakistani theoretical physici ...
) and the State Department's
Distinguished Honor Award The Distinguished Honor Award is an award of the United States Department of State. Similar versions of the same award exist for the former U.S. Information Agency, Arms Control and Disarmament Agency, and USAID. It is presented to groups or i ...
in 1970. In 1972 he became the first recipient of an award for nuclear statesmanship given jointly by the
American Nuclear Society The American Nuclear Society (ANS) is an international, not-for-profit organization of scientists, engineers, and industry professionals that promote the field of nuclear engineering and related disciplines. ANS is composed of three communities: ...
and the
Nuclear Energy Institute The Nuclear Energy Institute (NEI) is a nuclear industry trade association in the United States, based in Washington, D.C. Synopsis According to its website, the NEI "develops policy on key legislative and regulatory issues affecting the in ...
. By 1974, when the award was next given, it had been named the Henry DeWolf Smyth Nuclear Statesman Award.


Later life and legacy

After retiring from the IAEA, Smyth remained active. On the 40th anniversary of the
Trinity test Trinity was the code name of the first detonation of a nuclear weapon. It was conducted by the United States Army at 5:29 a.m. on July 16, 1945, as part of the Manhattan Project. The test was conducted in the Jornada del Muerto desert abo ...
in 1985, he denounced President
Ronald Reagan Ronald Wilson Reagan ( ; February 6, 1911June 5, 2004) was an American politician, actor, and union leader who served as the 40th president of the United States from 1981 to 1989. He also served as the 33rd governor of California from 1967 ...
's
Strategic Defense Initiative The Strategic Defense Initiative (SDI), derisively nicknamed the "''Star Wars'' program", was a proposed missile defense system intended to protect the United States from attack by ballistic strategic nuclear weapons ( intercontinental ballist ...
and called for joint arms reductions between the United States and the Soviet Union. He died September 11, 1986, in Princeton. The immediate cause was
cardiac arrest Cardiac arrest is when the heart suddenly and unexpectedly stops beating. It is a medical emergency that, without immediate medical intervention, will result in sudden cardiac death within minutes. Cardiopulmonary resuscitation (CPR) and possi ...
, though he had long battled
cancer Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. These contrast with benign tumors, which do not spread. Possible signs and symptoms include a lump, abnormal b ...
. Smyth endowed a chair in the Physics Department in his
will Will may refer to: Common meanings * Will and testament, instructions for the disposition of one's property after death * Will (philosophy), or willpower * Will (sociology) * Will, volition (psychology) * Will, a modal verb - see Shall and wi ...
. The sitting Henry DeWolf Smyth Professor of Physics is
Suzanne Staggs Suzanne T. Staggs (born May 11, 1965) is an American physicist who is currently the Henry DeWolf Smyth Professor of Physics at Princeton University. Staggs has led the development of numerous cosmic microwave background experiments and is curre ...
. The Smyth Report has remained the most significant release of technical details regarding atomic weapons ever made. Smyth was known for having a careful, judicious manner, and viewed less favorably people who he said became too "emotional" during a decision-making process. At Smyth's memorial service, physicist
Isidor Isaac Rabi Isidor Isaac Rabi (; born Israel Isaac Rabi, July 29, 1898 – January 11, 1988) was an American physicist who won the Nobel Prize in Physics in 1944 for his discovery of nuclear magnetic resonance, which is used in magnetic resonance ima ...
spoke in praise of Smyth's dissent in the Oppenheimer security hearings, saying that "one thinks of a supreme moment in a person's life when he stood against odds and did the right thing. That was Harry Smyth's fortune and Harry Smyth's greatness".


Notes


References

* * * * * * * * * * * * * * *


External links


Henry DeWolf Smyth papers
at the American Philosophical Society
Henry DeWolf Smyth papers
at the Princeton University Library
Photos
of Smyth from the
American Institute of Physics The American Institute of Physics (AIP) promotes science and the profession of physics, publishes physics journals, and produces publications for scientific and engineering societies. The AIP is made up of various member societies. Its corpora ...

The Smyth Report
at the
Internet Archive The Internet Archive is an American digital library with the stated mission of "universal access to all knowledge". It provides free public access to collections of digitized materials, including websites, software applications/games, music, ...
* * *Henry DeWolf Smyth (1945
''A general account of the development of methods of using atomic energy for military purposes''
- digital facsimile from the inda Hall Library {{DEFAULTSORT:Smyth, Henry DeWolf 1898 births 1986 deaths American diplomats American nuclear physicists Experimental physicists Manhattan Project people Atoms for Peace Award recipients Princeton University alumni Princeton University faculty Alumni of Gonville and Caius College, Cambridge Lawrenceville School alumni New Jersey Democrats People from Clinton, Oneida County, New York Fellows of the American Physical Society Historians of nuclear weapons Princeton Day School alumni Scientists from New York (state) Presidents of the American Physical Society