Browse "Science & Technology"

Displaying 421-435 of 846 results

  • Article

    Iron Ring

    The Iron Ring is a symbol of professional duty and obligation worn by Canadian engineers. The tradition began in 1922 when a group of Montréal engineers met to consider the solidarity of, and a means for providing guidance to, their profession.

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  • Article

    Irrigation

    Irrigation is warranted where the CLIMATE is essentially arid or semiarid and is characterized by low and unpredictable precipitation (see RAIN).

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  • Article

    Keystone XL Pipeline

    Keystone XL was a proposed 1,947 km long pipeline project that would have carried crude oil from Alberta to Nebraska. It was owned by Calgary-based TC Energy Corporation. The pipeline was named XL for “export limited.” First proposed in July 2008, it was the prospective fourth phase of TC Energy’s existing Keystone Pipeline system. In Canada, Keystone XL had the support of both the federal and Alberta governments. However, the project faced significant opposition and legal challenges on environmental grounds. In January 2021, United States president Joe Biden cancelled its permit on his first day in office. On 9 June 2021, TC Energy and the Alberta government announced the termination of the Keystone XL pipeline.

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  • Macleans

    Kirkland Lake Eyes Hazardous Waste Plant

    BILL ENOUY IS PROUD of his town. Oh, the jolly looking mayor of KIRKLAND LAKE, Ont., knows the main street needs a facelift, and that something should be done about the shortage of family physicians.This article was originally published in Maclean's Magazine on November 18, 2002

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  • Macleans

    Klein's Controversial Health-Care Reform

    This article was originally published in Maclean’s magazine on April 3, 2000. Partner content is not updated. Sitting in his wood-panelled office at the Alberta legislature, Ralph Klein contemplates the political fire storm raging outside his door.

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  • Macleans

    Kobe Earthquake

    Bridges, train trestles and elevated highways collapsed, sending hapless passengers plummeting to their deaths. Apartment buildings crumpled and fell, crushing terrified occupants still huddled in their beds.This article was originally published in Maclean's Magazine on January 30, 1995

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  • Article

    Lac-Mégantic Rail Disaster

    In the early morning of 6 July 2013, a runaway train hauling 72 tankers filled with crude oil derailed as it approached the centre of the town of Lac-Mégantic, Quebec. The tanker cars exploded and the oil caught fire, killing 47 people and destroying many buildings and other infrastructure in the town centre. The fourth deadliest railway disaster in Canadian history, the derailment led to changes in rail transport safety rules as well as legal action against the company and employees involved in the incident. Years after the derailment, re-building was still ongoing and many of the town’s residents continued to suffer from post-traumatic stress.

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  • Article

    Laser

    Laser (light amplification by stimulated emission of radiation), device used to generate high-intensity light.

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  • Article

    Lead

    Lead is extracted from mined ores containing zinc, silver and minor amounts of copper. It is also recovered from recycled materials; more than 50% of world metal production comes from recycling, making lead one of the most recycled metals in the world.

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  • Article

    Lemming

    Lemming, stocky northern rodent related to voles. About 16 species occur worldwide; best known of the 7 Canadian species are brown and collared lemmings.

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  • Article

    Les Éboulements Bus Crash

    Canada’s deadliest road accident to date was a single-vehicle bus crash near Saint-Joseph-de-la-Rive, in the Quebec municipality of Les Éboulements, on Thanksgiving Day, 13 October 1997.

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  • Article

    Les Forges Saint-Maurice

    The most technically advanced ironworks in America in their first 100 years, the forges had long been obsolete when shut down in 1883. The plant employed over 100 specialized craftsmen and 300-400 labourers, and produced forged iron and molded products such as pots, pans and stoves.

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  • Article

    Library and Information Science

    Library and Information Science, which encompasses all aspects of information management and library operations, is an organized graduate course of studies taught at the university level and producing practitioners with a recognized professional qualification.

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  • Macleans

    Life on Mars?

    It was an evening in summer upon the placid and temperate planet Mars. Up and down green wine canals, boats as delicate as bronze flowers drifted ....This article was originally published in Maclean's Magazine on August 19, 1996

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  • Article

    Lighting

    From earliest times it has been recognized that artificial light prolongs daytime activities. Relaxation and social interaction necessarily occurred after the day's work was done; therefore, indoor lighting has always had a special association with this aspect of living.

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