1944 in science

The year 1944 in science and technology involved some significant events, listed below.

Astronomy

 * Hendrik van de Hulst predicts the 21 cm hyperfine line of neutral interstellar hydrogen.

Biology

 * February 1 – Oswald T. Avery and colleagues publish the Avery–MacLeod–McCarty experiment showing that a DNA molecule can carry an inheritable trait to a living organism. This is important because many biologists thought that proteins were the hereditary material and nucleic acids too simple chemically to serve as genetic storage molecules.
 * The lipopolysaccharide character of enteric endotoxins is elucidated by M. J. Shear.
 * Erwin Schrödinger publishes What is Life?, containing conceptual discussion of the genetic code and of negentropy.
 * Donald Griffin with G. W. Pierce demonstrate that bats use high-frequency sound in a technique which Griffin describes as echolocation.
 * Last known evidence for existence of the Asiatic lion in the wild in Iran (Khuzestan province).

Chemistry

 * February – Lars Onsager publishes the exact solution to the two-dimensional Ising model.
 * Americium discovered by Glenn T. Seaborg, et al.

Computer science

 * August 7 – IBM dedicates the first program-controlled calculator, the Automatic Sequence Controlled Calculator, best known as the Harvard Mark I.

Geology

 * March 18 – Last eruption of Mount Vesuvius.

History of science

 * November 4 – The Whipple Museum of the History of Science is established when Robert Whipple presents his collection of scientific instruments to the University of Cambridge, England.
 * C. Doris Hellman publishes her Columbia University thesis The Comet of 1577: Its Place in the History of Astronomy.

Mathematics

 * John von Neumann and Oskar Morgenstern's book Theory of Games and Economic Behavior is published by Princeton University Press.

Medicine

 * November 19 – Minnesota Starvation Experiment begins.
 * Hans Asperger describes Asperger syndrome.
 * David S. Sheridan invents the disposable plastic tracheal tube catheter.
 * Dorothea and Alexander Leighton's book Navajo at the Door is "the earliest example of applied medical anthropology".

Meteorology

 * June 5 – Group Captain James Stagg correctly forecasts a brief improvement in weather conditions over the English Channel which permits the following day's Normandy landings to take place.
 * August 6 – Ball lightning observed in Uppsala, Sweden.

Physics

 * November 6 – Hanford Site in Washington (state) produces its first plutonium.

Technology

 * March 27 – In Sweden, Ruben Rausing patents Erik Wallenberg's method of packaging milk in paper, origin of the company Tetra Pak.
 * June 13 – First operational use of the German V-1 flying bomb, the first operational cruise missile, containing a gyroscope guidance system and propelled by a simple pulsejet engine.
 * September 8 – First operational use of the German V-2 rocket, the first ballistic missile. On June 20 one has become the first man-made object to cross the Kármán line and reach the edge of space.
 * December 9 – First flight of the Heinkel He 162 Volksjäger, the second jet engined fighter aircraft to be introduced by the Luftwaffe in World War II.
 * First operational use of a snorkel on a submarine.

Awards

 * Nobel Prizes
 * Physics – Isidor Isaac Rabi
 * Chemistry – Otto Hahn
 * Medicine – Joseph Erlanger, Herbert Spencer Gasser

Births

 * February 8 – Howard Dalton (died 2008), English microbiologist.
 * February 15 – Sigurd Hofmann, German physicist.
 * March 7 – Michael Rosbash, American geneticist and chronobiologist, recipient of the Nobel Prize in Physiology or Medicine.
 * June 1 – Colin Blakemore, English neurobiologist (died 2022).
 * June 5 – Whitfield Diffie, American cryptographer.
 * June 6 – Phillip Allen Sharp, American geneticist and molecular biologist, recipient of the Nobel Prize in Physiology or Medicine.
 * June 22 – Gérard Mourou, French electrical engineer, recipient of the Nobel Prize in Physics.
 * July 13 – Ernő Rubik, Hungarian inventor and architect.
 * August 24 – Gregory Jarvis (died 1986), American astronaut.
 * October 11 – William T. Greenough (died 2013), American neuroscientist.
 * October 16 – Elizabeth Loftus, American psychologist.
 * October 21 – Jean-Pierre Sauvage, French coordination chemist, recipient of the Nobel Prize in Chemistry.
 * December 19 – Richard Leakey (died 2022), Kenyan palaeoanthropologist.
 * December 28 – Kary Mullis (died 2019), American biochemist, recipient of the Nobel Prize in Chemistry.

Deaths

 * January 19 – Emily Winifred Dickson (born 1866), British gynaecologist.
 * January 20 – James McKeen Cattell (born 1860), American psychologist.
 * February 8 – Bernard Sachs (born 1858), American neurologist.
 * March – John R.F. Jeffreys (born 1918), British mathematician and cryptanalysist.
 * March 2 – Ida Maclean (born 1877), English biochemist.
 * March 5 – Ernst Cohen (born 1869), Dutch Jewish chemist (in Auschwitz concentration camp).
 * March 29 – Grace Chisholm Young (born 1868), English mathematician.
 * August 23 – Margarete Zuelzer (born 1877), German Jewish microbiologist (in Westerbork transit camp).
 * June 18 – Harry Fielding Reid (born 1859), American geophysicist.
 * July 25 – Jakob Johann von Uexküll (born 1864), Baltic German pioneer of biosemiotics.
 * November 2 – Thomas Midgley Jr. (born 1889), American chemist and inventor.
 * November 22 – Sir Arthur Eddington (born 1882), English astrophysicist.