Browse "Science & Technology"

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Urban Design

Urban design can be applied to the whole city (as in KITIMAT), to well-defined units of the city (as in Don Mills in Toronto) and to individual streets and clusters of buildings. The earliest extant examples of urban design in Canada are designs for the whole city.

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Urban Effect on Climate

Both land surface and air are altered by urbanization. Buildings change the geometric arrangement of the land surface, creating a rigid, rough system of blocks and street "canyons," especially in the centre of cities.

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V-chip Promise

When Maxine Lawson first suspected that her two-year-old son, Caden, might be picking up nasty habits from television, she was not sure what to do about it. "If he caught a glimpse of something like wrestling, he'd start kicking and pushing," the Toronto accountant recalls.

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V-chip Technology

Tim Collings is one of those techies who uses the word "neat" as often as some Canadians use "eh." A soft-spoken engineering instructor at Simon Fraser University in Burnaby, B.C., the 34-year-old Collings clearly gets excited by gadgetry.

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Veterinary Medicine

Veterinary Medicine, the science dealing with health and disease in vertebrates, has application to 4 broad domains: domestic animals, wildlife, comparative medicine and public health.

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VIA Rail Canada Inc.

In 1981 VIA cancelled or reduced numerous routes in an attempt to make passenger service more efficient. Services in parts of the country were seriously affected and the Liberal government was widely criticized. A nonconfidence vote over the issue in October 1981 was won by the government.

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Viagra Craze

In December, 1994, Lorne had just turned 40 and life was good. Married, he had two young children, a house near Vancouver and a job he enjoyed. Then disaster struck: as he changed a tire on his car beside a roadway, another automobile hit him.

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Viagra Fever

It did not arrive in a plain brown wrapper, but it was close. When the UPS delivery man knocked on Mike's door in Regina on the morning of May 22, he was carrying a brown envelope, albeit festooned with Canada Customs stickers and formal-looking information about the contents.

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Viagra Hits Canada

Bill Smith, a 55-year-old heavy-machine operator from Fredericton, knows these are his salad days revisited. As one of 500 Canadian men participating in the clinical trials of the impotency drug Viagra, he has been getting samples for two years. "They're free, so why not use them?" he says.

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Virus

Virus, the smallest form of life (20-300 nanometres), is structurally and functionally unique. Their size is such that they do not contain enough genetic material to code for the proteins they require for reproduction, nor do they have ribosomes needed to synthesize these proteins.

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W.D. Lawrence

W.D. Lawrence, 2548 ton square-rigged sailing ship built in 1874 in Maitland, NS. It was designed and built by William Dawson Lawrence, who earned substantial profits from the ship until 1883, when he sold it to a Norwegian.

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Waste Disposal

Although the term SOLID WASTE refers to a wide range of discarded materials (from kitchen scraps to mine tailings), the component known as refuse has the greatest potential for environmental contamination.

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Waste Reduction

The "3Rs Hierarchy of Waste Management" encourages people to reduce, reuse and recycle before considering other options for solid waste management. Reduction is at the top of the hierarchy because reducing waste (not creating waste in the first place) is the most efficient way to handle waste.

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Water Pollution

Water pollution occurs when discharges of energy or materials degrade the quality of water for other users, including both humans and wildlife. Pollution can affect inland waters such as lakes, rivers and groundwater, as well as coastal marine waters.

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Water Treatment

Water Treatment, the physical and chemical processes used to ensure water's quality for its intended use. Minimum standards for drinking water are set by environmental agencies while industries have their own guidelines.