Browse "Science & Technology"

Displaying 376-390 of 785 results

  • Article

    Insect Classification

    A classification system acts as an efficient storage mechanism for information about each taxon or group.

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  • Article

    Insect Pests

    Insects and humans cohabit the Earth and have developed complex relationships. Insect pests (less than 1% of all species) are those insects that feed on, compete for food with, or transmit diseases to humans and livestock.

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  • Article

    Insulin

    Insulin is a hormone produced by the pancreas. It helps the body absorb glucose and use it as energy. When someone has diabetes, there is either not enough insulin in the body or the body cannot use the insulin it produces. From between 1921 and 1922, a team at the University of Toronto isolated insulin. This medical breakthrough contributed to the treatment of diabetes and saved lives. (See also The Discovery of Insulin.)

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  • Macleans

    Intel Unveils New MMX Pentium Chip

    In the Information Age, people like 33-year-old Mark Rein are on the cutting edge. Rein is vice-president of Epic MegaGames Inc., a computer game company in Rockville, Md., yet his "office" is actually his home in Schomberg, just north of Toronto.This article was originally published in Maclean's Magazine on February 17, 1997

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  • Article

    International Development Research Centre

    The International Development Research Centre (IDRC) was established as a public corporation by Parliament in 1970 to support research designed to adapt science and technology to the specific needs of developing countries. The first chairman was Lester B. PEARSON.

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  • Article

    International Polar Year

    International Polar Year (IPY), 1882-83, was the first worldwide co-ordinated scientific enterprise and the most significant single event in the founding of the science of geophysics.

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  • Article

    Internet in Canada

    The Internet is a global network of computers that communicate with each other. This exchange happens through a set of rules called protocols. Since Internet use became widespread in the 1990s, the system has affected most aspects of life. It has had both productive and destructive effects. The Internet has changed the way Canadians learn and work, buy products and services, communicate and consume entertainment. Most people think of the Internet as the World Wide Web. However, it takes a number of different forms, including networked physical objects called the Internet of Things. Click here for definitions of key terms used in this article.

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  • Collection

    Invention and Innovation in Canada

    This collection gathers together articles relating to invention and innovation in Canada. (photograph by Beth A. Robertson, courtesy Canadian Science and Technology Museum)

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  • Editorial

    Invention of Standard Time

    The following article is an editorial written by The Canadian Encyclopedia staff. Editorials are not usually updated.

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  • Article

    Inventions and Devices

    Instruments, Invented And ImprovedAmong 19th-century Canadian inventors were James P.

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  • Article

    Inventors, Inventions and Innovations

    Whether they remained in Canada or pursued careers abroad, Canadians have invented or innovated devices, products or processes in various fields, such as medicine, technology and agriculture. In some cases, the government and agencies, like the National Research Council Canada (NRC), have funded research and development. Economic investment and the promotion of science, technology, engineering and mathematics (STEM) skills have been identified as key factors for building Canada’s innovation future.

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  • Article

    Iron Ore

    Its most important mineral forms are magnetite (Fe3O4, 72.4% Fe), hematite (Fe2O3, 69.9% Fe) and siderite (FeCO3, 48.29% Fe). In Brazil, some ore that contains practically no other minerals can grade as high as 68% Fe, but the crude ore mined in Canada grades between 30 and 44% Fe.

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  • 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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