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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.

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.

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.

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.

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.

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.

Tipis are cone-shaped dwellings that many Plains Indigenous peoples used to live in until the mid-1800s. Today, tipis retain cultural significance and are sometimes constructed for special functions. (See also Architectural History of Indigenous Peoples in Canada.)

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.

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.

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.

This article was originally published in Maclean’s magazine on April 14, 2003. Partner content is not updated.

This text is from the free Toronto in Time app, which was created by The Canadian Encyclopedia. The app is available from the App Store and the Google Play store. Visit its companion website, which is linked below, to explore all the features of the app online.

This text is from the free Toronto in Time app, which was created by The Canadian Encyclopedia. The app is available from the App Store and the Google Play store. Visit its companion website, which is linked below, to explore all the features of the app online.

The Toronto International Film Festival (TIFF) runs annually for 10 days in September beginning on the Thursday after Labour Day. The largest film festival in North America, its international stature is second only to the Cannes Film Festival. Unlike most major film festivals, which are open only to members of the industry and media, TIFF’s status as a public festival has made it an ideal testing ground for a film’s commercial appeal. That, combined with its September schedule, has made it a major launching pad for Oscar contenders and the more serious fare of the fall film schedule. It has also proven to be a key showcase for Canadian cinema, documentary films and experimental works. The 2016 edition of TIFF featured 397 films (296 features and 101 shorts), 138 of which were world premieres, while the 2017 lineup was streamlined by 20 per cent.

The Toronto subway is part of a larger public transportation network, including streetcars, buses and light rapid transit, run by the Toronto Transit Commission (TTC). It opened on 30 March 1954, making it Canada’s first subway. Since then, it has grown from a single, 12-station line running 7.4 km beneath Yonge Street to a four-line system encompassing 75 stations over 76.5 km. In 2017, the TTC recorded 213 million passenger trips on the Toronto subway.

The Trans Mountain Expansion is a project to build about 980 km of new pipe, most of which will run parallel to the existing Trans Mountain oil pipeline. The new line will carry diluted bitumen, or “dilbit,” from Edmonton, Alberta to Burnaby, British Columbia. The expansion will increase the pipeline route’s overall capacity from 300,000 barrels per day to 890,000 barrels per day.

The project’s first owner, Kinder Morgan Canada, sold it to the Government of Canada in 2018. The Trans Mountain Expansion has been a focus of environmental and economic debates, as well as political conflicts. The $12.6 billion project is now under construction.

 Trans-Canada Airlines was created 10 April 1937 by Act of Parliament as a subsidiary of CANADIAN NATIONAL RAILWAYS to provide air service to all regions of Canada. TCA began with 2 passenger aircraft and a small bi-plane, which was used to survey new routes.

The Trans-Canada Highway is a continuous road that allows vehicle travel across Canada. The highway runs through each of Canada’s 10 provinces, from Victoria, British Columbia, to St. John’s, Newfoundland and Labrador. At 7,821 km, it is the fourth-longest highway — and second-longest national highway — in the world.

Transport Canada is the federal government department responsible for the regulation and administration of transportation policies, programs and services to promote the safety and efficiency of the national transportation system.

The importance of transportation to a trading nation as vast as Canada cannot be underestimated. The great distances between mines, farms, forests and urban centres make efficient transport systems essential to the economy so that natural and manufactured goods can move freely through domestic and international markets. Transportation has and will continue to play an important role in the social and political unity of Canada.