Browse "Science & Technology"

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The Discovery of Insulin

For many years scientists believed that some kind of internal secretion of the pancreas was the key to preventing diabetes and controlling normal metabolism. No one could find it, until in the summer of 1921 a team at the University of Toronto began trying a new experimental approach suggested by Dr. Frederick Banting.

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The Internet and Music

The Internet began in the early 1970s as a "network of networks" involving several different US university and government computer systems. It quickly expanded to incorporate computer networks in other countries, including Canada.

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The Lost Villages

The Lost Villages are nine Canadian communities that were destroyed through the unprecedented land expropriation and construction of the St. Lawrence Seaway and Power Project in the 1950s.

Macleans

The Spread of SARS

IT WAS NOT what health-care officials had hoped for, to say the least. Only a week earlier, one of Health Canada's leading authorities on infectious diseases had speculated that SARS - severe acute respiratory syndrome - might actually be "easy to control.

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Theory and analysis

Theory and analysis. Music theory is concerned principally with the structure of music. Music theorists are engaged in such diverse tasks as the study of analytical and pedagogical technique, 'pure' theory, psychoacoustics, music perception, and the history of theory.

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Tidal Energy

Tidal energy is a largely untapped, renewable energy source based largely on lunar gravitation. While the potential of tidal hydroelectricity has long been recognized, compared to river dams, tidal power projects are expensive because massive structures must be built in difficult saltwater environments.

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Tide

The Earth is actually not in orbit around the sun but around the centre of mass of the Earth-sun system. Since all parts of the Earth move in the same orbit, they experience the same acceleration, but only at the Earth's centre is this acceleration exactly balanced by the sun's gravitation.

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Time

Precise timekeeping helped establish and develop Canada. For the past 2 centuries, Canadian exploration, mapping, navigation and transportation have exploited state-of-the-art precise time systems.

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Time Dissemination

Accurate TIME is disseminated or distributed by telecommunication systems to end users across Canada. Time and frequency references, traceable within stated limits to recognized standards, are available in Canada by ground and satellite based radio, television and telephone.

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Titanium

Titanium (Ti) is a metallic element estimated to form about 0.5% of the rocks of the Canadian SHIELD. Titanium minerals of commercial importance include the dioxides rutile and anatase, which are polymorphs of TiO2 and ilmenite (FeO.TiO2), a mineral that contains 52.7% TiO2.

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Tommy Douglas and Eugenics

Tommy Douglas — the father of socialized medicine in Canada and one of the country’s most beloved figures — once supported eugenic policies. In 1933, he received a Master of Arts in sociology from McMaster University for his thesis, “The Problems of the Subnormal Family.” In the thesis, Douglas recommended several eugenic policies, including the sterilization of “mental defectives and those incurably diseased.” His ideas were not unique, as two Canadian provinces (and 32 American states) passed sexual-sterilization legislation in the 1920s and 1930s. However, by the time Douglas became premier of Saskatchewan in 1944, he had abandoned his support for eugenic policies. When Douglas received two reports that recommended legalizing sexual sterilization in the province, he rejected the idea.

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Tonquin

The Tonquin was a ship of 269 tons built in New York in 1807 and purchased 23 August 1810 by New York fur merchant and entrepreneur John Jacob Astor.