Science & Technology | The Canadian Encyclopedia

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  • Article

    Chemistry Subdisciplines

    Early chemistry was principally analytical in nature; only as the body of experimental data increased did the present-day specialities evolve. The principal chemical subdisciplines are analytical, inorganic, organic and physical chemistry.

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  • Article

    Chiropractic

    Chiropractic is the manipulation of the spinal column as a means of curing disease. The word comes from the Greek chiro ("hands") and practic ("to practice"). The theory of chiropractic originated with D.D. Palmer, who was born in Port Perry (Ontario) in 1845.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Chiropractic
  • Article

    Cholera in Canada

    Cholera first reached Canada in 1832, brought by immigrants from Britain. Epidemics occurred in 1832, 1834, 1849, 1851, 1852 and 1854. There were cases in Halifax in 1881. The epidemics killed at least 20 000 people in Canada.

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  • Macleans

    Chronic Fatigue Syndrome

    This article was originally published in Maclean’s magazine on April 15, 2002. Partner content is not updated. Ashley Roll's mother is reluctant to have her come to the phone. She's worried that answering questions will take too much out of the 19-year-old, but Ashley says she's feeling up to it. Because of chronic fatigue syndrome, Roll is almost a prisoner of her home in Burnaby, B.C.

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  • Macleans

    Chronic Fatigue Syndrome Recognized

    This article was originally published in Maclean’s magazine on May 4, 1998. Partner content is not updated. Sharon Baillie once loved to read. Not any more. By the time she gets to page 3 of a book, she has generally forgotten what she read on page 1. She used to enjoy 25-km hikes on weekends. Now, she can barely manage a 20-minute walk with her golden retrievers, Buddy and Dusty.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Chronic Fatigue Syndrome Recognized
  • Article

    Churchill Falls

    The project was undertaken by a subsidiary of British Newfoundland Corp Ltd (Brinco), and was at the time the largest civil engineering project ever undertaken in North America. Eighty strategically placed dikes pooled the vast waters of the Labrador Plateau in the Smallwood Reservoir.

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  • Macleans

    Cigarette Packaging

    This article was originally published in Maclean’s magazine on January 31, 2000. Partner content is not updated. Perhaps, but if Rock gets his way cigarette packaging is about to go from colourful and cool to downright disturbing.

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  • Article

    Civil Engineering

    Before the multiplication of engineering disciplines in the late 19th and early 20th centuries, engineers were either military or civilian. Civilian engineers built nonmilitary structures; those in the military concentrated on FORTIFICATIONS.

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  • Article

    Climate Change

    Climate change occurs when long-term weather patterns begin to shift. These periods of change have occurred throughout the Earth’s history over extended periods of time. However, since the Industrial Revolution the world has been warming at an unprecedented rate. Because of this, the current period of climate change is often referred to as “global warming.” Human activities that release heat-trapping greenhouse gases, such as the burning of fossil fuels, are largely responsible for this increased rate of change. The implications of this global increase in temperature are potentially disastrous and include extreme weather events, rising sea levels and loss of habitat for plants, animals and humans. In Canada, efforts to mitigate climate change include phasing-out coal-fired power plants in Ontario and instituting a carbon tax in British Columbia. (This is the full-length entry about climate change. For a plain-language summary, please see Climate Change (Plain-Language Summary).)

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  • Macleans

    Climate Clues from Vancouver Island

    To the uninitiated, it looks no more exciting than a long, thin log of grey plasticene. But to scientists like Jeffrey Fox, a Texas geologist who oversaw its extraction last week from the bottom of a deep bay 16 km north of Victoria, the 9.This article was originally published in Maclean's Magazine on September 2, 1996

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Climate Clues from Vancouver Island
  • Article

    Climate Information

    Climate information is used by a variety of people. Building designers must be certain that their structures will withstand the strongest winds and be habitable during temperature extremes. Airlines, when possible, plan their routes to take advantage of the prevailing winds in the upper atmosphere.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Climate Information
  • Article

    Climate Severity

     Environment Canada devised the climate severity index to rate a locality's climate according to human comfort and well being. The index has a range from 1 to 100, with a score of 1 representing the least severe climate and 100 the most.

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  • Article

    Climatology

    The study of modern climatology is primarily global in perspective. The main tools used by climatologists are computer models of the atmosphere, ocean and land surface, and data inferred from SATELLITE observations.

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  • Article

    Clocks and Watches

    The manufacture of clocks and watches in Canada may have begun as early as 1700; however, practising watch and clockmakers through the 18th and much of the 19th centuries did not make the movements.

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Clocks and Watches
  • Macleans

    Cloned Sheep Raises Ethical Issues

    She does not look like a circus freak or a monster or an omen of evil. Her eyes and ears have a pinkish hue - just like they are supposed to.This article was originally published in Maclean's Magazine on March 10, 1997

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    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Cloned Sheep Raises Ethical Issues