The year 1946 in science and technology involved some significant events, listed below.

Astronomy

* January 10 – The

United States Army Signal Corps The United States Army Signal Corps (USASC) is a branch of the United States Army responsible for creating and managing Military communications, communications and information systems for the command and control of combined arms forces. It was ...

Project Diana Project Diana, named for the Roman moon goddess Diana, was an experimental project of the US Army Signal Corps in 1946 to bounce radar signals off the Moon and receive the reflected signals. This was the first experiment in radar astronomy ...

bounces

radar Radar is a system that uses radio waves to determine the distance ('' ranging''), direction ( azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track ...

waves off the Moon. *

Reginald Aldworth Daly Reginald Aldworth Daly (May 19, 1871 – September 19, 1957) was a Canadian geologist. He is best known for being one of the first proponents of the giant-impact hypothesis of the formation of the Moon. Biography Reginald Daly was educated at th ...

Harvard University Harvard University is a Private university, private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636 and named for its first benefactor, the History of the Puritans in North America, Puritan clergyma ...

first proposes a

giant impact hypothesis The giant-impact hypothesis, sometimes called the Theia Impact, is an astrogeology hypothesis for the formation of the Moon first proposed in 1946 by Canadian geologist Reginald Daly. The hypothesis suggests that the Early Earth collided wi ...

to account for formation of the Moon.

Biology

* November 10 –

Peter Scott Sir Peter Markham Scott (14 September 1909 – 29 August 1989) was a British ornithologist, conservation movement, conservationist, painter, naval officer, broadcaster and Sportsperson, sportsman. The only child of Antarctic explorer Robert Fal ...

opens the Slimbridge Wetland Reserve in

England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...

. * December 2 – The

International Convention for the Regulation of Whaling The International Convention for the Regulation of Whaling is an international environmental agreement aimed at the "proper conservation of whale stocks and thus make possible the orderly development of the whaling industry". It governs the comm ...

is signed in Washington, D.C. to "provide for the proper conservation of whale stocks and thus make possible the orderly development of the whaling industry" through establishment of the

International Whaling Commission The International Whaling Commission (IWC) is a specialised regional fishery management organisation, established under the terms of the 1946 International Convention for the Regulation of Whaling (ICRW) to "provide for the proper conservation ...

. *

Karl von Frisch Karl Ritter von Frisch, (20 November 1886 – 12 June 1982) was a German-Austrian ethology, ethologist who received the Nobel Prize in Physiology or Medicine in 1973, along with Nikolaas Tinbergen and Konrad Lorenz. His work centered on investi ...

publishes "Die Tänze der Bienen" ("The dances of the bees"). * Edmund Jaeger discovers and later documents, in ''The Condor'', a state of extended

torpor Torpor is a state of decreased physiological activity in an animal, usually marked by a reduced body temperature and metabolic rate. Torpor enables animals to survive periods of reduced food availability. The term "torpor" can refer to the ti ...

, approaching

hibernation Hibernation is a state of minimal activity and metabolic reduction entered by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It is mos ...

, in a bird, the

common poorwill The common poorwill (''Phalaenoptilus nuttallii'') is a nocturnal bird of the family Caprimulgidae, the nightjars. It is found from British Columbia and southeastern Alberta, through the western United States to northern Mexico. The bird's habi ...

Cartography

* The Chamberlin trimetric projection is developed by Wellman Chamberlin for the

National Geographic Society The National Geographic Society, headquartered in Washington, D.C., United States, is one of the largest nonprofit scientific and educational organizations in the world. Founded in 1888, its interests include geography, archaeology, natural sc ...

Chemistry

* The structure of the alkaloid

strychnine Strychnine (, , American English, US chiefly ) is a highly toxicity, toxic, colorless, bitter, crystalline alkaloid used as a pesticide, particularly for killing small vertebrates such as birds and rodents. Strychnine, when inhaled, swallowed, ...

is determined by English organic chemist Robert Robinson.

Computer science

* February 14–15 –

ENIAC ENIAC (; Electronic Numerical Integrator and Computer) was the first Computer programming, programmable, Electronics, electronic, general-purpose digital computer, completed in 1945. Other computers had some of these features, but ENIAC was ...

, the first non-classified all-electronic

Turing complete Alan Mathison Turing (; 23 June 1912 – 7 June 1954) was an English mathematician, computer scientist, logician, cryptanalyst, philosopher and theoretical biologist. He was highly influential in the development of theoretical comput ...

computer, built under the direction of

J. Presper Eckert John Adam Presper "Pres" Eckert Jr. (April 9, 1919 – June 3, 1995) was an American electrical engineer and computer pioneer. With John Mauchly, he designed the first general-purpose electronic digital computer (ENIAC), presented the first cour ...

and

John Mauchly John William Mauchly ( ; August 30, 1907 – January 8, 1980) was an American physicist who, along with J. Presper Eckert, designed ENIAC, the first general-purpose electronic digital computer, as well as EDVAC, BINAC and UNIVAC I, the f ...

, is announced and dedicated at the

University of Pennsylvania The University of Pennsylvania (Penn or UPenn) is a Private university, private Ivy League research university in Philadelphia, Pennsylvania, United States. One of nine colonial colleges, it was chartered in 1755 through the efforts of f ...

Moore School of Electrical Engineering The Moore School of Electrical Engineering was a school at the University of Pennsylvania. The school was integrated into the University of Pennsylvania School of Engineering and Applied Science. The Moore School came into existence as a resul ...

. It is programmable by

plugboard A plugboard or control panel (the term used depends on the application area) is an array of jack (connector), jacks or sockets (often called hubs) into which patch cords can be inserted to complete an electrical circuit. Control panels are som ...

and uses

conditional branch A branch, jump or transfer is an instruction in a computer program that can cause a computer to begin executing a different instruction sequence and thus deviate from its default behavior of executing instructions in order. ''Branch'' (or ''br ...

ing. * December 11 –

Frederic Calland Williams Sir Frederic Calland Williams, (26 June 1911 – 11 August 1977), known as F.C. Williams or Freddie Williams, was an English engineer, a pioneer in radar and computer technology. Education Williams was born in Romiley, Stockport, and edu ...

receives a

patent A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an sufficiency of disclosure, enabling discl ...

for a

random-access memory Random-access memory (RAM; ) is a form of Computer memory, electronic computer memory that can be read and changed in any order, typically used to store working Data (computing), data and machine code. A random-access memory device allows ...

device.

Earth sciences

* Arthur Holmes estimates the

age of the Earth The age of Earth is estimated to be 4.54 ± 0.05 billion years. This age may represent the age of Earth's accretion (astrophysics), accretion, or Internal structure of Earth, core formation, or of the material from which Earth formed. This dating ...

, using

uranium–lead dating Uranium–lead dating, abbreviated U–Pb dating, is one of the oldest and most refined of the radiometric dating schemes. It can be used to date rocks that formed and crystallised from about 1 million years to over 4.5 billion years ago with routi ...

Mathematics

* June –

Joseph Berkson Joseph Berkson (14 May 1899 – 12 September 1982) was trained as a physicist (BSc 1920, College of City of New York CNY M.A., 1922, Columbia), physician (M.D., 1927, Johns Hopkins), and statistician (Dr.Sc., 1928, Johns Hopkins).O'Fallon WM (19 ...

describes

Berkson's Paradox Berkson's paradox, also known as Berkson's bias, collider bias, or Berkson's fallacy, is a result in conditional probability and statistics which is often found to be counterintuitive, and hence a veridical paradox. It is a complicating factor ar ...

Medicine

* July 14 – Dr.

Benjamin Spock Benjamin McLane Spock (May 2, 1903–March 15, 1998), widely known as Dr. Spock, was an American pediatrician, Olympian athlete and left-wing political activist. His book '' Baby and Child Care'' (1946) is one of the best-selling books of ...

's '' The Common Sense Book of Baby and Child Care'' is first published in

New York New York most commonly refers to: * New York (state), a state in the northeastern United States * New York City, the most populous city in the United States, located in the state of New York New York may also refer to: Places United Kingdom * ...

; it becomes one of the biggest best-sellers of all time. *

Harold Gillies Sir Harold Delf Gillies (17 June 1882 – 10 September 1960) was a New Zealand otolaryngologist and father of modern plastic surgery for the techniques he devised to repair the faces of wounded soldiers returning from World War I. Early life ...

begins to perform

sex reassignment surgery Gender-affirming surgery (GAS) is a surgical procedure, or series of procedures, that alters a person's physical appearance and sexual characteristics to resemble those associated with their gender identity. The phrase is most often associat ...

on Michael Dillon, including the first

phalloplasty Phalloplasty (also called penoplasty) is the construction or reconstruction of a penis or the artificial modification of the penis by surgery. The term is also occasionally used to refer to penis enlargement. History Russian surgeon Nikolaj B ...

for a

trans man A trans man or transgender man is a man who was assigned female at birth. Trans men have a male gender identity, and many trans men undergo medical and social transition to alter their appearance in a way that aligns with their gender identi ...

. *

Chance Brothers Chance Brothers and Company was an English glassworks originally based in Spon Lane, Smethwick, West Midlands (county), West Midlands (formerly in Staffordshire), in England. It was a leading glass manufacturer and a pioneer of British glassma ...

Smethwick Smethwick () is an industrial town in the Sandwell district, in the county of the West Midlands (county), West Midlands, England. It lies west of Birmingham city centre. Historically it was in Staffordshire and then Worcestershire before bei ...

, England, produce the first all-glass

syringe A syringe is a simple reciprocating pump consisting of a plunger (though in modern syringes, it is actually a piston) that fits tightly within a cylindrical tube called a barrel. The plunger can be linearly pulled and pushed along the inside ...

with interchangeable barrel and plunger, allowing easy mass-sterilisation of components. * Alfred Gilman, with Frederick S. Philips, first publish the results of trials of anti-

cancer Cancer is a group of diseases involving Cell growth#Disorders, abnormal cell growth with the potential to Invasion (cancer), invade or Metastasis, spread to other parts of the body. These contrast with benign tumors, which do not spread. Po ...

chemotherapy Chemotherapy (often abbreviated chemo, sometimes CTX and CTx) is the type of cancer treatment that uses one or more anti-cancer drugs (list of chemotherapeutic agents, chemotherapeutic agents or alkylating agents) in a standard chemotherapy re ...

, using

mechlorethamine Chlormethine ( INN, BAN), also known as mechlorethamine ( USAN, USP), mustine, HN2, and (in post-Soviet states) embikhin (эмбихин), is a nitrogen mustard sold under the brand name Mustargen among others. It is the prototype of alkylatin ...

, carried out with Louis S. Goodman.

Physics

* January 1 –

Atomic Energy Research Establishment The Atomic Energy Research Establishment (AERE), also known as Harwell Laboratory, was the main Headquarters, centre for nuclear power, atomic energy research and development in the United Kingdom from 1946 to the 1990s. It was created, owned ...

established at

Harwell, Oxfordshire Harwell is a village and civil parish in the Vale of White Horse about west of Didcot, east of Wantage and south of Oxford, England. The parish measures about north – south, and almost east – west at its widest point. In 1923, its area ...

under

John Cockcroft Sir John Douglas Cockcroft (27 May 1897 – 18 September 1967) was an English nuclear physicist who shared the 1951 Nobel Prize in Physics with Ernest Walton for their splitting of the atomic nucleus, which was instrumental in the developmen ...

. * May 21 –

Manhattan Project The Manhattan Project was a research and development program undertaken during World War II to produce the first nuclear weapons. It was led by the United States in collaboration with the United Kingdom and Canada. From 1942 to 1946, the ...

physicist Louis Slotin accidentally triggers a fission reaction at the

Los Alamos National Laboratory Los Alamos National Laboratory (often shortened as Los Alamos and LANL) is one of the sixteen research and development Laboratory, laboratories of the United States Department of Energy National Laboratories, United States Department of Energy ...

and gives himself a lethal dose of hard radiation, making him the second victim of a

criticality accident A criticality accident is an accidental uncontrolled nuclear fission chain reaction. It is sometimes referred to as a critical excursion, critical power excursion, divergent chain reaction, or simply critical. Any such event involves the uninten ...

in history. * The

BBGKY hierarchy In statistical physics, the Bogoliubov–Born–Green–Kirkwood–Yvon (BBGKY) hierarchy (sometimes called Bogoliubov hierarchy) is a set of equations describing the dynamics of a system of a large number of interacting particles. The equation for ...

of equations for ''s''-particle distribution functions is applied to the derivation of kinetic equations by

Nikolay Bogolyubov Nikolay Nikolayevich (Mykola Mykolayovych) Bogolyubov (; ; 21 August 1909 – 13 February 1992) was a Soviet, Ukrainian and Russian mathematician and theoretical physicist known for a significant contribution to quantum field theory, classi ...

in a paper received in July 1945 and published in 1946 in Russian and in English. The related kinetic transport theory is considered by

John Gamble Kirkwood John "Jack" Gamble Kirkwood (May 30, 1907, Gotebo, Oklahoma – August 9, 1959, New Haven, Connecticut) was a noted chemist and physicist, holding faculty positions at Cornell University, the University of Chicago, California Institute of Techno ...

in a paper received in October 1945 and published in March 1946. The first paper by

Max Born Max Born (; 11 December 1882 – 5 January 1970) was a German-British theoretical physicist who was instrumental in the development of quantum mechanics. He also made contributions to solid-state physics and optics, and supervised the work of a ...

and Herbert S. Green considering a general kinetic theory of liquids is received in February 1946 and published on 31 December 1946.

Technology

* July 24 – First

Martin-Baker Martin-Baker Aircraft Company Limited is a British manufacturer of ejection seats and safety-related equipment for aviation. The company was originally an aircraft manufacturer before becoming a pioneer in the field of ejection seats. The comp ...

ejection seat In aircraft, an ejection seat or ejector seat is a system designed to rescue the aircraft pilot, pilot or other aircrew, crew of an aircraft (usually military) in an emergency. In most designs, the seat is propelled out of the aircraft by an exp ...

live-tested from a jet aircraft over England.

Awards

Nobel Prize The Nobel Prizes ( ; ; ) are awards administered by the Nobel Foundation and granted in accordance with the principle of "for the greatest benefit to humankind". The prizes were first awarded in 1901, marking the fifth anniversary of Alfred N ...

s"Nobel Laureates 1946."
''Nobelprize''. **

Physics Physics is the scientific study of matter, its Elementary particle, fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge whi ...

–

Percy Williams Bridgman Percy Williams Bridgman (April 21, 1882 – August 20, 1961) was an American physicist who received the Nobel Prize in Physics in 1946 for his work on the physics of high pressures. He also wrote extensively on the scientific method and on other ...

Chemistry Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical elements that make up matter and chemical compound, compounds made of atoms, molecules a ...

–

James B. Sumner James Batcheller Sumner (November 19, 1887 – August 12, 1955) was an American biochemist. He discovered that enzymes can be crystallized, for which he shared the Nobel Prize in Chemistry in 1946 with John Howard Northrop and Wendell Meredith ...

John Howard Northrop John Howard Northrop (July 5, 1891 – May 27, 1987) was an American biochemist who, with James Batcheller Sumner and Wendell Meredith Stanley, won the 1946 Nobel Prize in Chemistry. The award was given for these scientists' isolation, crys ...

Wendell Meredith Stanley Wendell Meredith Stanley (August 16, 1904June 15, 1971) was an American biochemist, virologist and Nobel laureate. Biography Stanley was born in Ridgeville, Indiana, and earned a BSc in chemistry at Earlham College in Richmond, Indiana. He th ...

Medicine Medicine is the science and Praxis (process), practice of caring for patients, managing the Medical diagnosis, diagnosis, prognosis, Preventive medicine, prevention, therapy, treatment, Palliative care, palliation of their injury or disease, ...

–

Hermann Joseph Muller Hermann Joseph Muller (December 21, 1890 – April 5, 1967) was an American geneticist who was awarded the 1946 Nobel Prize in Physiology or Medicine, "for the discovery that mutations can be induced by X-rays". Muller warned of long-term dang ...

Births

* February 26 –

Ahmed Zewail Ahmed Hassan Zewail (February 26, 1946 – August 2, 2016) was an Egyptian-American chemist, known as the "father of femtochemistry". He was awarded the 1999 Nobel Prize in Chemistry for his work on femtochemistry and became the first Egyptian a ...

(died

2016 2016 was designated as: * International Year of Pulses by the sixty-eighth session of the United Nations General Assembly. * International Year of Global Understanding (IYGU) by the International Council for Science (ICSU), the Internationa ...

), Egyptian-born "father of

femtochemistry Femtochemistry is the area of physical chemistry that studies chemical reactions on extremely short timescales (approximately 10−15 seconds or one femtosecond, hence the name) in order to study the very act of atoms within molecules (reactants ...

", recipient of the

Nobel Prize in Chemistry The Nobel Prize in Chemistry () is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of chemistry. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895, awarded for outst ...

* May 11 – Robert Jarvik, American co-inventor of the Jarvik-7

artificial heart An artificial heart is a artificial organ, device that replaces the human heart, heart. Artificial hearts are typically used as a bridge to heart transplantation, but ongoing research aims to develop a device that could permanently replace the ...

* June 13 –

Paul L. Modrich Paul Lawrence Modrich (born June 13, 1946) is an American biochemist, James B. Duke Professor of Biochemistry at Duke University and Investigator at the Howard Hughes Medical Institute. He is known for his research on DNA mismatch repair. Modric ...

, American biochemist, recipient of the Nobel Prize in Chemistry * June 24 –

Ellison Onizuka was an American astronaut, engineer, and U.S. Air Force flight test engineer from Kealakekua, Hawaii, who successfully flew into space with the Space Shuttle ''Discovery'' on STS-51-C. He died in the destruction of the Space Shuttle ''Cha ...

(killed

1986 The year 1986 was designated as the International Year of Peace by the United Nations. Events January * January 1 ** Aruba gains increased autonomy from the Netherlands by separating from the Netherlands Antilles. ** Spain and Portugal en ...

), American

astronaut An astronaut (from the Ancient Greek (), meaning 'star', and (), meaning 'sailor') is a person trained, equipped, and deployed by a List of human spaceflight programs, human spaceflight program to serve as a commander or crew member of a spa ...

* July 2 –

Richard Axel Richard Axel (born July 2, 1946) is an American molecular biologist and university professor in the Department of Neuroscience at Columbia University and investigator at the Howard Hughes Medical Institute. His work on the olfactory system won h ...

, American

physiologist Physiology (; ) is the scientific study of functions and mechanisms in a living system. As a subdiscipline of biology, physiology focuses on how organisms, organ systems, individual organs, cells, and biomolecules carry out chemical and ...

, recipient of the

Nobel Prize in Physiology or Medicine The Nobel Prize in Physiology or Medicine () is awarded yearly by the Nobel Assembly at the Karolinska Institute for outstanding discoveries in physiology or medicine. The Nobel Prize is not a single prize, but five separate prizes that, acco ...

* August 2 –

Nigel Hitchin Nigel James Hitchin FRS (born 2 August 1946) is a British mathematician working in the fields of differential geometry, gauge theory, algebraic geometry, and mathematical physics. He is a Professor Emeritus of Mathematics at the University of O ...

, English mathematician * August 5 – Shirley Ann Jackson, African American physicist * August 11 –

Marilyn vos Savant Marilyn vos Savant ( ; born Marilyn Mach; August 11, 1946) is an American magazine columnist who has the highest recorded intelligence quotient (IQ) in the ''Guinness Book of Records'', a competitive category the publication has since retired. S ...

, American polymath * September 7 –

Francisco Varela Francisco Javier Varela García (September 7, 1946 – May 28, 2001) was a Chilean biologist, philosopher, cybernetician, and neuroscientist who, together with his mentor Humberto Maturana, is best known for introducing the concept of autopoie ...

(died

2001 The year's most prominent event was the September 11 attacks against the United States by al-Qaeda, which Casualties of the September 11 attacks, killed 2,977 people and instigated the global war on terror. The United States led a Participan ...

), Chilean-born

biologist A biologist is a scientist who conducts research in biology. Biologists are interested in studying life on Earth, whether it is an individual Cell (biology), cell, a multicellular organism, or a Community (ecology), community of Biological inter ...

and

philosopher Philosophy ('love of wisdom' in Ancient Greek) is a systematic study of general and fundamental questions concerning topics like existence, reason, knowledge, Value (ethics and social sciences), value, mind, and language. It is a rational an ...

* September 8 –

Aziz Sancar Aziz Sancar (; born 8September 1946) is a Turkish molecular biologist specializing in DNA repair, cell cycle checkpoints, and circadian clock. In 2015, he was awarded the Nobel Prize in Chemistry along with Tomas Lindahl and Paul L. Modrich fo ...

, Turkish biochemist, recipient of the Nobel Prize in Chemistry * September 9 –

Adrian Smith Adrian Smith may refer to: * Adrian Smith (basketball) (born 1936), American basketball player *Adrian Smith (architect) (born 1944), American architect *Sir Adrian Smith (statistician) (born 1946), English statistician and academic *Adrian Smith (m ...

, English statistician,

President of the Royal Society The president of the Royal Society (PRS), also known as the Royal Society of London, is the elected Head of the Royal Society who presides over meetings of the society's council. After an informal meeting (a lecture) by Christopher Wren at Gres ...

* September 28 –

Morinobu Endo Morinobu Endo (遠藤守信 ''Endō Morinobu'', born September 28, 1946) is a Japanese physicist and chemist, often cited as one of the pioneers of carbon nanofibers and carbon nanotubes synthesis at the beginning of the 1970s. He demonstrated ...

, Japanese

chemist A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a graduated scientist trained in the study of chemistry, or an officially enrolled student in the field. Chemists study the composition of ...

* October 14 – Kay Redfield Jamison, American

clinical psychologist Clinical psychology is an integration of human science, behavioral science, theory, and clinical knowledge for the purpose of understanding, preventing, and relieving psychologically-based distress or dysfunction and to promote subjective well ...

* October 17 –

Carol Dweck Carol Susan Dweck (born October 17, 1946) is an American psychologist. She holds the Lewis and Virginia Eaton Professorship of Psychology at Stanford University. Dweck is known for her work on motivation and mindset. She was on the faculty at ...

, American

social psychologist Social psychology is the methodical study of how thoughts, feelings, and behaviors are influenced by the actual, imagined, or implied presence of others. Although studying many of the same substantive topics as its counterpart in the field of ...

* October 29 – Peter Barnes, English respiratory scientist * December 31 –

Roy Porter Roy Sydney Porter (31 December 1946 – 3 March 2002) was a British historian known for his work on the history of medicine. He retired in 2001 as the director of the Wellcome Institute for the History of Medicine at University College London ...

(died

2002 The effects of the September 11 attacks of the previous year had a significant impact on the affairs of 2002. The war on terror was a major political focus. Without settled international law, several nations engaged in anti-terror operation ...

), English medical historian *

Faiza Al-Kharafi Faiza Mohammed Al-Kharafi (; born 1946) is a Kuwaiti chemist and academic. She was the president of Kuwait University from 1993 to 2002, and the first woman to head a major university in the Middle East. She is the vice president of TWAS, the Wo ...

, Kuwaiti electrochemist

Deaths

* March 8 – Frederick W. Lanchester (born

1868 Events January * January 2 – British Expedition to Abyssinia: Robert Napier, 1st Baron Napier of Magdala, Robert Napier leads an expedition to free captive British officials and missionaries. * January 3 – The 15-year-old Mutsu ...

), English automotive engineer. * March 23 –

Gilbert N. Lewis Gilbert Newton Lewis (October 23 or October 25, 1875 – March 23, 1946) was an American physical chemist and a dean of the college of chemistry at University of California, Berkeley. Lewis was best known for his discovery of the covalent bon ...

(born

1875 Events January * January 1 – The Midland Railway of England abolishes the Second Class passenger category, leaving First Class and Third Class. Other British railway companies follow Midland's lead during the rest of the year (Third C ...

), American

; first to isolate

deuterium Deuterium (hydrogen-2, symbol H or D, also known as heavy hydrogen) is one of two stable isotopes of hydrogen; the other is protium, or hydrogen-1, H. The deuterium nucleus (deuteron) contains one proton and one neutron, whereas the far more c ...

. * March 26 – Gerhard Heilman (born 1859), Danish paleo-ornithologist. * May 2 –

Simon Flexner Simon Flexner (March 25, 1863 – May 2, 1946) was a physician, scientist, administrator, and professor of experimental pathology at the University of Pennsylvania (1899–1903). He served as the first director of the Rockefeller Institute for ...

(born

1863 Events January * January 1 – Abraham Lincoln signs the Emancipation Proclamation during the third year of the American Civil War, making the abolition of slavery in the Confederate States of America an official war goal. The signing ...

), American

pathologist Pathology is the study of disease. The word ''pathology'' also refers to the study of disease in general, incorporating a wide range of biology research fields and medical practices. However, when used in the context of modern medical treatme ...

and

bacteriologist A bacteriologist is a microbiologist, or similarly trained professional, in bacteriology— a subdivision of microbiology that studies bacteria, typically Pathogenic bacteria, pathogenic ones. Bacteriologists are interested in studying and learnin ...

. * June 14 –

John Logie Baird John Logie Baird (; 13 August 188814 June 1946) was a Scottish inventor, electrical engineer, and innovator who demonstrated the world's first mechanical Mechanical television, television system on 26 January 1926. He went on to invent the fi ...

(born 1888), Scottish-born

inventor An invention is a unique or novel device, method, composition, idea, or process. An invention may be an improvement upon a machine, product, or process for increasing efficiency or lowering cost. It may also be an entirely new concept. If an ...

. * August 13 –

H. G. Wells Herbert George Wells (21 September 1866 – 13 August 1946) was an English writer, prolific in many genres. He wrote more than fifty novels and dozens of short stories. His non-fiction output included works of social commentary, politics, hist ...

(born

1866 Events January * January 1 ** Fisk University, a historically black university, is established in Nashville, Tennessee. ** The last issue of the abolitionist magazine '' The Liberator'' is published. * January 6 – Ottoman troops clash ...

), English novelist and scientific populariser. * September 16 –

James Jeans Sir James Hopwood Jeans (11 September 1877 – 16 September 1946) was an English physicist, mathematician and an astronomer. He served as a secretary of the Royal Society from 1919 to 1929, and was the president of the Royal Astronomical Soci ...

(born

1877 Events January * January 1 – Queen Victoria is proclaimed Empress of India by the Royal Titles Act 1876, introduced by Benjamin Disraeli, the Prime Minister of the United Kingdom . * January 8 – Great Sioux War of 1876: Batt ...

), English

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...

and

scientist A scientist is a person who Scientific method, researches to advance knowledge in an Branches of science, area of the natural sciences. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, philosophers engag ...

. * October 2 –

Ignacy Mościcki Ignacy Mościcki (; 1 December 1867 – 2 October 1946) was a Polish chemist and politician who was the country's president from 1926 to 1939. He was the longest serving president in Polish history. Mościcki was the President of Poland when Ge ...

(born

1867 There were only 354 days this year in the newly purchased territory of Alaska. When the territory transferred from the Russian Empire to the United States, the calendric transition from the Julian to the Gregorian Calendar was made with only 1 ...

and

President of Poland The president of Poland ( ), officially the president of the Republic of Poland (), is the head of state of Poland. His or her prerogatives and duties are determined in the Constitution of Poland. The president jointly exercises the executive ...

. * October 4 –

Barney Oldfield Berna Eli "Barney" Oldfield (January 29, 1878 – October 4, 1946) was a pioneer American racing driver. His name was "synonymous with speed in the first two decades of the 20th century". He was the winner of the inaugural List of American ope ...

(born

1878 Events January * January 5 – Russo-Turkish War: Battle of Shipka Pass IV – Russian and Bulgarian forces defeat the Ottoman Empire. * January 9 – Umberto I becomes King of Italy. * January 17 – Russo-Turkish War: ...

), American automobile racer. * December 2 – Hilda Lyon (born

1896 Events January * January 2 – The Jameson Raid comes to an end as Jameson surrenders to the Boers. * January 4 – Utah is admitted as the 45th U.S. state. * January 5 – An Austrian newspaper reports Wilhelm Röntgen's dis ...

), English

aeronautical engineer Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecraft. It has two major and overlapping branches: aeronautical engineering and astronautical engineering. Avionics engineering is s ...

. *

Israel Aharoni Israel Aharoni (; 1882–1946) was a zoologist in Ottoman and British Palestine widely known as the "first Hebrew zoologist." Aharoni is best known for collecting a litter of Syrian hamsters on an expedition to Aleppo, Syria. The hamsters we ...

(born

1882 Events January * January 2 ** The Standard Oil Trust is secretly created in the United States to control multiple corporations set up by John D. Rockefeller and his associates. ** Irish-born author Oscar Wilde arrives in New York at the ...

), Russian-born Jewish

zoologist Zoology ( , ) is the scientific study of animals. Its studies include the structure, embryology, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems. Zoology is one ...

References

{{DEFAULTSORT:1946 In Science 20th century in science 1940s in science