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Physical world and mathematics

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Don Coppersmith

Don Coppersmith is an American cryptographer at IBM's T.J. Watson Research Center, known for the Coppersmith method and for helping design the Data Encryption Standard.

Don Eigler

Don Eigler is an American physicist at IBM's Almaden Research Center, the first person to move and control a single atom using a scanning tunnelling microscope.

Don L. Anderson

Don L. Anderson (Don Lynn Anderson, 1933–2014) was an American geophysicist and seismologist at Caltech who co-developed PREM, the most widely used model of the Earth's interior.

Don Lincoln

Don Lincoln (born 1964) is an American particle physicist at Fermilab who co-discovered the top quark and works on the CMS experiment at CERN's Large Hadron Collider.

Don Merlin Lee Yost

Don Merlin Lee Yost was an American physical inorganic chemist at Caltech who pioneered Raman spectroscopy and was elected to the National Academy of Sciences in 1944.

Don U. Deere

Don U. Deere (1922–2018) was an American engineering geologist who created the Rock Quality Designation (RQD) measure of rock quality and chaired the U.S. Nuclear Waste Technical Review Board.

Don Walsh

Don Walsh (1931–2023) was an American Navy captain, oceanographer, and deep-sea explorer who piloted the bathyscaphe Trieste with Jacques Piccard to the Challenger Deep in 1960.

Don Zagier

Don Zagier, born 1951 in Heidelberg, is a number theorist known for the Gross–Zagier formula and modular forms, who directed the Max Planck Institute for Mathematics in Bonn.

Don't Look Up

Don't Look Up (2021) is Adam McKay's Netflix apocalyptic satire, co-written with David Sirota, starring DiCaprio, Lawrence, and Streep as astronomers warning of a comet; Metascore 49, Best Picture Oscar nominee.

Dona Juana

Doña Juana (Dona Juana) is an active dacitic stratovolcano, 4,160 m, in Nariño, SW Colombia, whose 1897-1936 eruptions killed over 100 people; it is monitored by the SGC from Pasto.

Donal D. C. Bradley

Donal D. C. Bradley is a physicist in plastic electronics, co-inventor of conjugated polymer electroluminescence in 1989, the principle behind polymer LEDs, and a Fellow of the Royal Society.

Donal O'Shea

Donal O'Shea (born 1952) is a mathematician specializing in singularity theory, known for his 2007 book The Poincaré Conjecture and for leading New College of Florida.

Donald A. Gurnett

Donald A. Gurnett (1940–2022) was an American space plasma physicist at the University of Iowa, a founder of space plasma wave physics whose Voyager 1 instrument confirmed the spacecraft crossed the heliopause in 2012.

Donald A. Tomalia

Donald A. Tomalia, born 1938 in Owosso, Michigan, is an American physical-organic chemist who invented PAMAM dendrimers at Dow in 1979, named them Starburst dendrimers, and founded Dendritech.

Donald B. Owen

Donald B. Owen (Donald Bruce Owen, 1922–1991) was an American statistician and Distinguished Professor at Southern Methodist University in Dallas, known for Owen's T function and statistical tables.

Donald B. Rubin

Donald B. Rubin, also known as D. B. Rubin, is an American statistician, namesake of the Rubin Causal Model and Emeritus Professor of Statistics at Harvard University.

Donald Burkholder

Donald Burkholder (1927–2013) was an American mathematician at the University of Illinois Urbana-Champaign who, apart from Joseph Doob, did the most of any probabilist of his generation to build the theory of martingales.

Donald C. Spencer

Donald C. Spencer (1912–2001) was an American mathematician who, with Kunihiko Kodaira, founded the deformation theory of complex manifolds, and who won the Bôcher Memorial Prize in 1948 and the National Medal of Science in 1989.

Donald C. Stockbarger

Donald C. Stockbarger (1895–1952) was an American physicist and educator at MIT who introduced the Bridgman–Stockbarger method of growing single crystals from the melt in the 1930s.

Donald Charlton Bradley

Donald Charlton Bradley (1924–2014) was a British inorganic chemist who pioneered research on metal alkoxides, now used as precursors for oxide films and ceramics; he received the Royal Medal in 1998.

Donald D. Clayton

Donald D. Clayton (Donald Delbert Clayton) was an American nuclear astrophysicist who worked out how stars form the chemical elements and wrote the standard text on stellar evolution.

Donald Dingwell

Donald Bruce Dingwell, born 1958 in Corner Brook, Newfoundland, is a Canadian-German experimental geoscientist who held the Chair of Mineralogy and Petrology at LMU Munich from 2000 to 2024.

Donald E. White

Donald E. White (1914–2002) was an American economic geologist with the United States Geological Survey who showed that most hot-spring and ore fluids originate as rain and snow.

Donald Edward Osterbrock

Donald Edward Osterbrock (1924–2007) was an American astronomer known for research on gaseous nebulae and active galactic nuclei, and director of Lick Observatory from 1973 to 1981.

Donald Farley

Donald Thorn Farley Jr. (1933–2018) was an American ionospheric physicist at Cornell University known for incoherent scattering theory, the Farley-Buneman instability, and radar techniques at the Jicamarca observatory in Peru.

Donald G. Higman

Donald G. Higman (Donald Gordon Higman, 1928–2006) was a Canadian-born mathematician at the University of Michigan known for the Higman–Sims sporadic group and graph, discovered in 1967.

Donald G. Saari

Donald G. Saari (Donald Gene Saari) is an American mathematician at UC Irvine known for the n-body problem and a geometric voting theory favoring the Borda count.

Donald G. Truhlar

Donald G. Truhlar, born in 1944, is an American theoretical chemist at the University of Minnesota known for transition state theory, solvation models, and density functionals.

Donald G. York

Donald G. York (1944–2025) was an American astronomer at the University of Chicago who made the first detection of interstellar deuterium and founded the Sloan Digital Sky Survey.

Donald Ginsberg

Donald Maurice Ginsberg was an American experimental physicist at the University of Illinois who became a world authority on superconductivity and shared the 1998 Buckley Prize.