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John Stanley Plaskett

John Stanley Plaskett, astronomer (b at Hickson, UC 17 Nov 1865; d at Esquimalt, BC 17 Oct 1941). Born on a farm, Plaskett joined the Edison Co in Schenectady, New York, and Sherbrooke, Québec.

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Carlyle Smith Beals

Carlyle Smith Beals, astronomer (b at Canso, NS 29 June 1899; d at Ottawa 2 July 1979). Astronomer and assistant director of the Dominion Astrophysical Observatory, Victoria, BC, until 1946, Beals was Dominion Astronomer in Ottawa until his retirement in 1964.

Article

Harold Elford Johns

His work was at all times characterized by the application of imagination and experimental skill backed by theoretical rigour to the solution of major problems, largely related to cancer diagnosis and treatment.

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Mario Bunge

Mario Bunge, (b at Buenos Aires, 1919). After training as a physicist (doctorate in mathematical physics, Universidad Nacional de La Plata, 1952), Mario Bunge turned toward philosophy, which he taught at the U. of Buenos Aires from 1957 to 1963.

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Boris Peter Stoicheff

Boris Peter Stoicheff, physics professor (b at Bitola, Yugoslavia 1 June 1924). A specialist in spectroscopy, laser physics and nonlinear optics, he is known for his innovative use of lasers. After receiving a PhD from U of T in 1950 he joined the National Research Council of Canada in 1951.

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Howard Turner Barnes

Howard Turner Barnes, physicist (b at Woburn, Mass 21 July 1873; d at Burlington, Vt 4 Oct 1950). Graduating from McGill in 1893 in applied sciences, he was initiated into research work by his physics professor Hugh L. Callendar, an authority in electrical precision measurements.

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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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Leo Yaffe

Leo Yaffe, educator, nuclear scientist, university administrator (b at Devil's Lake, N Dak 6 July 1916). In 1952 Yaffe established a productive nuclear chemistry research laboratory at McGill.

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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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Alexander Graham Bell

Alexander Graham Bell, teacher of the deaf, inventor, scientist (born 3 March 1847 in Edinburgh, Scotland; died 2 August 1922 near Baddeck, NS). Alexander Graham Bell is generally considered second only to Thomas Alva Edison among 19th- and 20th-century inventors. Although he is best known as the inventor of the first practical telephone, he also did innovative work in other fields, including aeronautics, hydrofoils and wireless communication (the “photophone”). Moreover, Bell himself considered his work with the deaf to be his most important contribution. Born in Scotland, he emigrated to Canada in 1870 with his parents. Bell married American Mabel Hubbard in 1877 and became a naturalized American citizen in 1882. From the mid-1880s, he and his family spent their summers near Baddeck on Cape Breton Island, where they built a large home, Beinn Bhreagh. From then on, Bell divided his time and his research between the United States and Canada. He died and was buried at Baddeck in 1922.

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.

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Arthur Edwin Covington

Arthur Edwin Covington, scientist, astronomer (born at Regina 21 Sept 1913; died at Kingston, Ont, 17 Mar 2001). He earned a BSc and MSc in physics from UBC and completed his doctoral degree and post-graduate studies in nuclear physics at the University of California at Berkeley.