Browse "Science & Technology"

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Weather Modification

Weather modification has been used in an attempt to increase rainfall and snowfall, to suppress hail, to clear fogs, to modify tropical cyclones and to suppress lightning. The term "weather modification" is not normally used to describe inadvertent changes in our WEATHER.

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Weather Observations

   Weather in Canada ranges from the extreme cold of the Arctic to tornadoes and other severe weather in the southern regions; from the storms and fog of the Atlantic to the dry heat and majestic thunderstorms of the prairies.

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Weights and Measures

Weights and measures are terms which traditionally referred to standards of mass (or weight), length and volume. Over the past few thousand years such standards have frequently been introduced throughout the world for trading and tax purposes.

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West Nile Virus

West Nile VIRUS, a member of the flavivirus family, is related to the viruses that cause dengue and yellow fevers. The effects of infection with West Nile virus range from no symptoms to severe illness and even death.

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West Nile Virus Precautions

THEY'LL SOON be here, riding the warm currents of summer: MOSQUITOES armed with the latest bioweapon - the West Nile VIRUS. Short of building a concrete bunker or setting up an unhealthy fog of repellent spray, there are ways of safeguarding the pasty flesh of Canuckus winterus.

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Wildlife Preserve

A wildlife preserve is an area of land or water set aside from at least some forms of development or recreational use, particularly from industrial use, hunting and motorized recreation, to protect wildlife and their habitats.

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Wind Chill

The more pronounced the air movement (wind or moving air produced by walking, skiing or riding in a convertible) and the greater the temperature difference between the surface of the object and the air, the greater the heat loss.

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Wind Energy

Wind energy is energy obtained from moving air. The motion results from the heating and cooling of the Earth; thus, wind energy is an indirect form of solar energy.

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Windows 95 Introduced

The world tour has been drawing huge crowds, there are souvenir T-shirts and a seemingly endless stream of articles in magazines and newspapers around the world. Everywhere there is an air of feverish anticipation.

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Wired Revolution on Campus

Nursing professor Ellie MacFarlane is a self-confessed "technological klutz," the type of person who finds programming a videocassette recorder a daunting experience. So it was with some trepidation that she learned last year that St.

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Wireless hang-up

Ottawa’s unprecedented efforts to woo Verizon have sparked a fierce backlash from Canada’s carriers, and questions about what’s really best for Canadian consumers

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Women and Health

If life expectancy is any indication of health, Canadian women are, on average, much healthier than they were 70 years ago. The life expectancy of female babies born in 1921 was 61 while female babies born today are expected to live to age 82.

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Woodenware

Woodenware, or treen, simple, small objects made entirely of wood, usually by home craftsmen who were their own carpenters, joiners, carvers and turners. Normally, woodenware was made from a single piece of wood (block or plank, rough or milled), cut, hollowed or turned but rarely joined.

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Woodward and Evans Light Bulb

In 1874, Canadians Henry Woodward and Mathew Evans patented a design for an incandescent light bulb. Their invention preceded that of American Thomas Edison by several years. In fact, the second patent (issued in 1876 in the United States) was among those that Edison bought as he refined the technology to create a longer-lasting bulb. Woodward and Evans’s early work on the light bulb in Toronto has gone largely unrecognized. It was nevertheless an important development in the invention of electric lighting.

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