Science & Technology | The Canadian Encyclopedia

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  • Article

    David Douglas

    David Douglas, botanist (b at Scone near Perth, Scotland 25 July 1799; d in Hawaii 12 July 1834). Douglas became an apprentice gardener at age 11; at 20 he moved to the Botanic Gardens, Glasgow, and at 23 became a collector for the Horticultural Society of London in North America.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 David Douglas
  • Article

    David Ernest Hornell

    David Ernest Hornell, VC, clerk, pilot (born 26 January 1910 in Toronto, Ontario; died 25 June 1944 at sea near the Faroe Islands in the North Atlantic Ocean). During the Second World War, Hornell was awarded a posthumous Victoria Cross (VC) for his heroic actions in sinking a German submarine and encouraging his crewmates after their plane was shot down. He was the first member of the Royal Canadian Air Force (RCAF) to receive the VC.

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    https://d3d0lqu00lnqvz.cloudfront.net/DavidHornell/Hornell portrait.jpg David Ernest Hornell
  • Article

    David H. Hubel

    David Hunter Hubel, FRS, Nobel Laureate, neurobiologist (born 27 February 1926 in Windsor, ON; died 22 September 2013 in Lincoln, Massachusetts). Dr. David Hubel advanced our understanding of how our eyes transmit and reconstitute the images we see moment by moment to our brains. He was a research scientist who used innovative craftsmanship to design and create the instruments and procedures he used to conduct studies on the visual cortex of the brain. His meticulous observations revolutionized cognitive neuroscience and his pioneering approach to the recording of individual neuronal cells propelled the field forward.

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    https://d3d0lqu00lnqvz.cloudfront.net/davidhubel/davidhubel.jpg David H. Hubel
  • Article

    David Howard Harrison

    David Howard Harrison, physician, politician, farmer, businessman, premier of Manitoba (b at London, Canada W 1 June 1843; d at Vancouver 8 Sept 1905).

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  • Article

    David Laurence Thomson Smith

    David Laurence Thomson Smith, veterinarian, teacher (b at Regina 18 Apr 1914; d at Saskatoon 15 Nov 1983). After serving in the Royal Canadian Army Medical Corps in WWII, he joined the faculty of the Ontario Veterinary College in 1946, and was head of pathology and bacteriology there 1955-63.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 David Laurence Thomson Smith
  • Article

    David Saint-Jacques

    David Saint-Jacques, OC, OQ, astronaut, engineer, astrophysicist, medical doctor (born 6 January 1970, in Québec City, QC). Early in his career, Saint-Jacques contributed to advances in telescope technology in Japan and Hawaii, and medical technology at Lariboisière Hospital in Paris. (See also Astronomy; Medical Research; Technology in Canada.) He also worked as a doctor and co-chief of medicine at the Inuulitsivik Health Centre in Puvirnituq, Nunavik. In 2009, he was chosen by the Canadian Space Agency to become an astronaut. In 2018, he served on the International Space Station for 204 days, longer than any other Canadian astronaut.

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    https://d3d0lqu00lnqvz.cloudfront.net/davidsaintjacques/David_Saint_Jacques_Socialsize.jpg David Saint-Jacques
  • Article

    David Suzuki

    David Takayoshi Suzuki, CC, OBC, geneticist, broadcaster, environmental activist (born 24 March 1936 in Vancouver, BC). A Japanese Canadian, David Suzuki was interned with his family during the Second World War. He later became one of Canada’s most popular scientists and media personalities. He is best known as the host (1979–2023) of the longest-running science show on television, CBC’s The Nature of Things, and for his work as an environmental activist. He has received ACTRA’s John Drainie Award for broadcasting excellence and the Canadian Screen Awards’ Lifetime Achievement Award. A Companion of the Order of Canada, he has also received the Order of British Columbia and been inducted into Canada’s Walk of Fame.

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    https://d3d0lqu00lnqvz.cloudfront.net/media/media/b56689d4-3a29-44f9-a1a6-64f0e9874551.jpg David Suzuki
  • Macleans

    David Suzuki (Interview)

    This article was originally published in Maclean’s magazine on October 4, 2004. Partner content is not updated. David Suzuki was there to explain to Canadians the grand ambitions of the early space program and our Anik satellites.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 David Suzuki (Interview)
  • Macleans

    David Suzuki (Profile)

    This article was originally published in Maclean’s magazine on November 5, 2007. Partner content is not updated. On the afternoon of Tuesday, Oct. 9, emergency crews raced to the provincial cabinet offices on the Vancouver waterfront after a receptionist's hands were left tingling from a suspicious powder in a piece of mail.

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  • 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.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 David Schindler
  • Article

    Davidson Black

    Davidson Black, anatomist, anthropologist (b at Toronto, Ont 25 July 1884; d at Beijing [Peking], China 15 Mar 1934).

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Davidson Black
  • Article

    Deborah McGregor

    Deborah McGregor, Indigenous Knowledge Systems expert, environmentalist, professor (born in Whitefish River First Nation, Birch Island, ON). Deborah McGregor is an Anishinaabe scholar and Indigenous Knowledge Systems (IKS) expert. Her work focuses on how Indigenous Knowledges, experiences and voices can be applied to solve environmental problems. McGregor has held roles in both academic institutions and public organizations to address issues related to climate change.

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    https://d3d0lqu00lnqvz.cloudfront.net/TCE_placeholder.png Deborah McGregor
  • 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.

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  • 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.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Derek York
  • 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.”

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    https://d3d0lqu00lnqvz.cloudfront.net/media/media/acefca19-9a24-4d7a-93df-a28de509a6e8.jpg Dick Bond