Browse "Science & Technology"

Displaying 136-150 of 632 results
Article

David Schindler

David William Schindler, OC, FRSC, FRS, AOE, scientist, limnologist (born 3 August 1940 in Fargo, North Dakota; died 4 March 2021 in Brisco, BC). Schindler was an outspoken researcher who advanced the understanding, protection and conservation of Canada’s fresh waters.

Article

Dennis Hubert Chitty

Dennis Hubert Chitty, zoologist (born 18 September 1912 in Bristol, England; died 3 February 2010 in Vancouver, BC ). Educated at University of Toronto and Oxford, he studied rodent populations as a research officer at the Bureau of Animal Population, Oxford, 1935-61.

Article

Derek York

Derek York, geophysics professor, science writer (b at Normanton, Yorkshire, Eng 12 Aug 1936; d at Toronto, 9 Aug 2007). A leader in the field of potassium-argon dating of rock, Derek York was a foreign principal investigator for NASA during the Apollo missions to the moon.

Article

Dick Bond

John Richard (Dick) Bond, OC, OOnt, FRS, FRSC, cosmologist (born 15 May 1950 in Toronto, ON). Bond is known for his work in astrophysics and cosmology, especially for his investigations of the early universe. The Natural Sciences and Engineering Research Council of Canada has described him as “a Godfather of Canada’s now vibrant internationally recognized theoretical cosmology community.”

Article

Dominique Gaspard

Dominique François Gaspard, physician and community builder (born 22 December 1884 in New Orleans, Louisiana; died 6 February 1938 in Montreal, QC). Gaspard was a respected doctor and a trailblazer in Montreal’s Black district. After serving with distinction at a field hospital during the First World War, he devoted himself to medical practice in Montreal. He also worked to create social and intellectual outlets for Black men in the city. A bilingual Catholic, he was unique in the city’s early-20th-century anglophone Protestant Black community. His story speaks of a complexity of language, ethnicity and migration not often explored in narratives of Quebec’s English-speaking and Black communities.

Article

Donald Chant

Donald Alfred Chant, OC, FRSC, scientist, educator, environmentalist, executive (born 30 September 1928 in Toronto, ON; died 23 December 2007 in Kingston, ON). Chant was one of the foremost experts on the phytoseiid family of predatory mites. A professor of zoology and administrator at the University of Toronto, he was also a prominent environmental leader and advocate.

Article

Donald Frank Stedman

Donald Frank Stedman, scientist (b at Tunbridge Wells, Eng 4 Apr 1900; d at Ottawa 2 May 1967). Primarily a chemist, he was one of the earliest staffers of the NATIONAL RESEARCH COUNCIL (1930).

Article

Donald James Le Roy

Donald James Le Roy, physical chemist, science adviser (b at Detroit, Mich 5 Mar 1913; d at Ottawa 1 Nov 1985). After gaining his PhD at the University of Toronto (1939), he joined E.W.R.

Article

Donald McKay

Donald McKay, designer and builder of clipper ships (b at Jordan Falls, NS 4 Sept 1810; d at Hamilton, Mass 20 Sept 1880). As a boy he learned the shipbuilder's trade in his father's and uncle's shipyards on the Jordan River.

Article

Donald Olding Hebb

Donald Olding Hebb, psychologist (b at Chester, NS 22 July 1904; d at Halifax, 20 Aug 1985). He was a brilliant pupil who completed grades 1 to 4 in one year and 5 to 6 the next. But school proved too easy, and when he graduated from Dalhousie, his record was undistinguished.

Article

Donna Strickland

Donna Theo Strickland, CC, physicist (born 27 May 1959 in Guelph, ON). Donna Strickland is a pioneering physicist, known for her work on ultrafast lasers. She is currently a professor of physics at the University of Waterloo. She has authored more than 90 publications and has made seminal contributions to the field of laser technology. In 2018, Strickland was jointly awarded the Nobel Prize in Physics for her work on the development of laser technology.

Article

Dorothea Palmer

Dorothea Ferguson (née Palmer), birth control advocate, social worker (born 1908 in England; died 5 November 1992 in Ottawa, ON). Dorothea Palmer was arrested in 1936 for advertising birth control to women in a working-class neighbourhood in Ottawa. She was cleared of charges after a lengthy trial proved her work had been for the public good. Her acquittal was a major victory for the birth control movement in Canada.