Browse "Science & Technology"

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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.

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Agricultural Research Stations

For more than a century, the federal government has funded agricultural research through a network of research centres strategically placed in almost every province. This research program has played a major role in developing the more than $120-billion Canadian agrifood industry.

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Agriculture and Food

Canada's agriculture and food industries have changed greatly in the years since the Second World War. Growth in Canada’s economy, and associated social changes, have altered the way food is produced, processed, handled, sold and consumed.

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Organic Agriculture

Organic agriculture is defined as the sustainable cultivation of land for food production that nourishes soil life, nurtures animals in their natural environment and feeds them according to their physiology.

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Agroforestry

Agroforestry is an intensive land management system that integrates the benefits from biological interactions created when trees or shrubs are intentionally grown with crops or livestock.

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Artificial Intelligence (AI) in Canada

The term artificial intelligence (AI) refers to the capacity of a machine to simulate or exceed intelligent human activity or behaviour. It also denotes the subfield of computer science and engineering committed to the study of AI technologies. With recent advancements in digital technology, scientists have begun to create systems modelled on the workings of the human mind. Canadian researchers have played an important role in the development of AI. Now a global leader in the field, Canada, like other nations worldwide, faces important societal questions and challenges related to these potentially powerful technologies.

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AIDS

Illnesses that this infection can produce include a transient disease, developing within several months of exposure. It is characterized by rash, fever, malaise, joint pains and lymphadenopathy (swollen lymph nodes).

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Air Profile Recorder

Air Profile Recorder (APR), a narrow-beam recording radar altimeter designed to provide topographic profiles for use in the mapping of wilderness areas. The instrument employs a 3.2 cm pulse transmitter that feeds a parabolic radiator, mounted below the aircraft.

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Trans-Canada Airlines

 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.

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Alberta Research Council

The Alberta Research Council, the oldest provincial research organization, was established by order-in-council as the Scientific and Industrial Research Council of Alberta in 1921. Instrumental in founding the organization were J.L. COTÉ, provincial secretary, and H.M.

Macleans

BSE-Infected Cow Found in Alberta

DANNY ROSEHILL remembers well the Tuesday morning in September when he watched the terrorist attacks on New York City while the weekly sale at his cattle auction house in Olds, Alta., continued apace. "The towers were brought down, 3,000 people killed, and yet the sale went on," says Rosehill.

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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.