| Donald Hornig | |
| Office: | 14th President of Brown University |
| Term Start: | 1970 |
| Term End: | 1976 |
| Predecessor: | Ray Heffner |
| Successor: | Howard Swearer |
| Office1: | Director of the Office of Science and Technology |
| President1: | Lyndon B. Johnson |
| Term Start1: | January 24, 1964 |
| Term End1: | January 20, 1969 |
| Predecessor1: | Jerome Wiesner |
| Successor1: | Lee DuBridge |
| Birth Name: | Donald Frederick Hornig |
| Birth Date: | 17 August 1920 |
| Birth Place: | Milwaukee, Wisconsin, U.S. |
| Death Place: | Providence, Rhode Island, U.S. |
| Education: | Harvard University (BS, MS, PhD) |
| Spouse: | Lilli Hornig |
Donald Frederick Hornig (March 17, 1920 – January 21, 2013) was an American chemist, explosives expert, teacher and presidential science advisor. He served as president of Brown University from 1970 to 1976.
Hornig was born in Milwaukee, Wisconsin, the son of Chester Arthur Hornig and Emma Knuth. He attended Milwaukee Country Day School, then earned his undergraduate degree in chemistry from Harvard University. He was awarded his Ph.D. from Harvard University in 1943, at the age of 23, with a dissertation on An Investigation of the Shock Wave Produced by an Explosion in Air. On July 17, 1943, he was married to scientist Lilli Hornig. The couple had four children together: three girls, Joanna, Ellen, and Leslie, and one boy, Christopher.
After graduating, he started work at the Underwater Explosives Laboratory of the Woods Hole Oceanographic Institute. While there, according to one obituary, he received an invitation to begin a new job, but he was not told what his duties would be, nor, initially, to where he would relocate. At first he refused, but Harvard University President James B. Conant helped persuade him to reconsider. Thus, he joined the Los Alamos Laboratory, where he was a group leader in the Manhattan Project. He worked on the firing unit that was used for the implosion of the plutonium device, and was the person who pushed the button for the test, as he later told his friends Eugene Rosenbaum and Anne Rosenbaum Vohl.[1] He helped prepare the first atomic bomb, Trinity, and witnessed its explosion, the first detonation of a nuclear device. He was sent up to the top of the tower twice the previous day to reassure a nervous Robert Oppenheimer that all was well.[2]
In 1946 he joined the staff of Brown University as an assistant professor, and became a full professor in 1951. From 1951 to 1952 he was associate dean of the graduate school, then acting dean the following year. In 1957 he became a member of the National Academy of Sciences and the same year he moved to Princeton University in 1957. Later became chairman of the Princeton chemistry department.[3]
Shortly before President John F. Kennedy was assassinated in 1963, he announced Hornig as the presidential science advisor. Hornig assumed office on January 24, 1964, but did not get along with the new president, Lyndon Baines Johnson, who had poor relationships with many scientists.[2] He left office at the end of the president's term in 1969, and accepted an executive position with Eastman Kodak Company.[4]
In 1970 he became president of Brown University, and he remained in office until he resigned in 1976. The end of his term was noted for financial cutbacks at the university, which was met by student protests. Thereafter he became Professor of Chemistry in Public Health at Harvard University. From 1987 to 1990 he served the Harvard University School of Public Health as chairman of the Department of Environmental Health. He retired in 1990.[5]
Since 2013, Hornig has been listed on the Advisory Council of the National Center for Science Education.[6]
Hornig died from Alzheimer's disease[7] in Providence, Rhode Island, on January 21, 2013.[8]
In the 2023 film Oppenheimer, directed by Christopher Nolan, Hornig was portrayed by actor David Rysdahl.
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