Search for ""

Displaying 221-240 of 821 results
Article

Palliser Expedition

The explorers amassed astronomical, meteorological, geological and magnetic data, and described the country, its fauna and flora, its inhabitants and its "capabilities" for settlement and transportation.

Article

Petroleum

Since its first commercial exploitation in the 1850s, petroleum has become the major energy source of Canada and the industrial world.

Article

Petrochemical Industry

The petrochemical industry, which produces chemicals using OIL AND NATURAL GAS as major raw materials, occupies an important position in Canada's MANUFACTURING and consuming sectors. Oil and natural gas are composed primarily of hydrocarbons. Most petrochemicals contain hydrogen or carbon or both.

Article

Media Literacy

Media literacy refers to the ability to interpret and understand how various forms of media operate, and the impact those media can have on one’s perspective on people, events or issues. To be media literate is to understand that media are constructions, that audiences negotiate meaning, that all media have commercial, social and political implications, and that the content of media depends in part on the nature of the medium. Media literacy involves thinking critically and actively deconstructing the media one consumes. It also involves understanding one’s role as a consumer and creator of media and understanding the ways in which governments regulate media.

Macleans

New Leukemia Treatment

Given the excitement of a family vacation in California, four-year-old Ashford Slowley's fatigue and loss of appetite did not seem unusual. "The kids were playing hard," says his mother, Tina Slowley. "They don't eat much when they're in the hot sun.

Macleans

Music on the Web

The crowd at Vancouver's venerable Commodore nightclub roars as the band on stage cracks out the opening chords of a rock anthem. Beneath its aural assault, Leader of Men is a song about self-doubt - an irony that eludes most in the audience. The four members of the group Nickelback don't mind.

Article

Allergies

The alarmingly increasing frequency of allergies, affecting over 20% of the population in developed countries, has led to the establishment of a new branch of medicine, that of allergology, which is conceptually closely related to immunology.

Article

Applied Anthropology

Applied anthropologists use their knowledge of peoples and cultures for practical purposes. They do this framed by anthropological concepts and a methodology - ethnographic fieldwork - that portrays people in their actual circumstances.

Article

Aerodynamics

Viscosity is the ability of a flowing liquid or gas to develop internal shear stresses that resist flow. In air, viscous forces are generally small in comparison with inertia forces, a condition which leads to flow instability and turbulence.

Article

Agricultural Soil Practices

Harvesting of marketable timber, if present, constitutes the first stage and may involve individual trees or a stand. Logs may be cut, stripped and piled with tree harvesters; trees may be knocked down, lifted and moved with tree-dozers.