Science & Technology | The Canadian Encyclopedia

Browse "Science & Technology"

Displaying 691-705 of 847 results

  • Article

    Sexually Transmitted Infections

    Sexually Transmitted Infections (STI) is the name now used to describe a group of infections previously referred to as venereal diseases (VD) or sexually transmitted diseases (STD).

    "https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9" // resources/views/front/categories/view.blade.php
    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Sexually Transmitted Infections

  • Article

    Shaganappi

    Shaganappi is cord made of rawhide. The Métis once used shaganappi to repair and bind parts of their Red River carts and dogsleds. Today, many people know Shaganappi as a community in southwest Calgary, Alberta.

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/c3781b11-2c61-4b22-8a88-04c1442d9b7e.jpg" // resources/views/front/categories/view.blade.php
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/c3781b11-2c61-4b22-8a88-04c1442d9b7e.jpg Shaganappi

  • Article

    Shaking Tent

    Shaking Tent rite was widespread among the Ojibwa, Innu (Montagnais-Naskapi), Cree, Penobscot and Abenaki and involved the shamanistic use of a special cylindrical lodge or tent.

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/e964b6ce-0733-4278-ab5a-ca888c129228.jpg" // resources/views/front/categories/view.blade.php
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/e964b6ce-0733-4278-ab5a-ca888c129228.jpg Shaking Tent

  • Article

    Shanty

    A shanty is a winter lumber camp. The term is derived from the French Canadian word for lumber camp, "chantier."

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/9c793973-1e56-475b-8e78-e557f3137cdb.jpg" // resources/views/front/categories/view.blade.php
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/9c793973-1e56-475b-8e78-e557f3137cdb.jpg Shanty

  • Article

    Shipbuilding and Ship Repair

    The first SAILING SHIPS built in what is now Canada were 2 small craft launched at PORT-ROYAL, Acadia, by François Gravé du Pont in 1606. The first recorded seagoing vessel, Galiote, was built in NEW FRANCE in 1663.

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/4c950e25-eef1-4b40-86ed-669724e4e833.jpg" // resources/views/front/categories/view.blade.php
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/4c950e25-eef1-4b40-86ed-669724e4e833.jpg Shipbuilding and Ship Repair

  • Article

    SI Prefixes

    SI Prefixes Factor Prefix Symbol 10¹ deca da 10² hecto h 10³ kilo k 106 mega M 109 giga G 1012 tera T 1015 peta P 1018 exa E 10-1 deci d 10-2 centi c 10-3 milli m 10-6 micro m 10-9 nano n 10-12 pico p 10-15 femto f 10-18 atto a For more information see the article WEIGHTS & MEASURES. 

    "https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9" // resources/views/front/categories/view.blade.php
    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 SI Prefixes

  • Article

    Silver Dart

    J.A.D. MCCURDY was the principal designer and pilot; Glenn H. Curtiss developed the water-cooled engine, an advance on the association's earlier experiments.

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/29987043-6718-49ef-af1b-7073898c2060.jpg" // resources/views/front/categories/view.blade.php
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/29987043-6718-49ef-af1b-7073898c2060.jpg Silver Dart

  • Editorial

    The Silver Dart and the Dawn of Flight in Canada

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

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/f5702375-312b-424c-979a-442def6a6446.jpg" // resources/views/front/categories/view.blade.php
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/f5702375-312b-424c-979a-442def6a6446.jpg The Silver Dart and the Dawn of Flight in Canada

  • Article

    Silviculture

    Silviculture is the branch of FORESTRY that deals with establishing, caring for and reproducing stands of trees for a variety of forest uses including wildlife habitat, timber production and outdoor recreation.

    "https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9" // resources/views/front/categories/view.blade.php
    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Silviculture

  • Article

    SkyTrain

    The SkyTrain is the rapid transit rail system serving Metro Vancouver, British Columbia. It uses mostly Advanced Light Rapid Transit (ALRT) technology, an automated rail system that operates mainly on a raised guideway, although some sections run underground or at street level. Regular service began 3 January 1986. The SkyTrain’s opening coincided with Expo 86, the world’s fair hosted by Vancouver as part of its 100th anniversary celebrations. The system is run by TransLink, the provincial transit agency for the South Coast of British Columbia. It was the world’s first driverless urban rail system. Now, it is one of the longest fully automated rapid transit systems in the world. The SkyTrain has three lines connecting 53 stations in seven municipalities. In 2018, it had more than 495,000 boardings per weekday, on average.

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/82bd1d11-dffa-4919-8590-ae9ea87a523c.jpg" // resources/views/front/categories/view.blade.php
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/82bd1d11-dffa-4919-8590-ae9ea87a523c.jpg SkyTrain

  • Article

    Smallpox in Canada

    Smallpox is an infectious disease caused by the variola virus. The disease arrived in what is now Canada with French settlers in the early 17th century. Indigenous people had no immunity to smallpox, resulting in devastating infection and death rates. In 1768, arm-to-arm inoculation became more widely practised in North America. By 1800, advances in vaccination helped control the spread of smallpox. Public health efforts also reduced rates of infection. In the 20th century, Canadian scientists helped the World Health Organization eradicate smallpox. Eradication was achieved in 1979, but virus stocks still exist for research and safety reasons. Click here for definitions of key terms used in this article.

    "https://d3d0lqu00lnqvz.cloudfront.net/media/new_article_images/Smallpox/Smallpox_victim.jpg" // resources/views/front/categories/view.blade.php
    https://d3d0lqu00lnqvz.cloudfront.net/media/new_article_images/Smallpox/Smallpox_victim.jpg Smallpox in Canada

  • Article

    Smoking

    Smoking is a universal health hazard. All forms of TOBACCO smoking are risky. Canadian consumption of cigarettes has been declining since the monitoring of smoking began in 1965, when an estimated 50% of adults smoked. In 1981 smoking prevalence had dropped below 40%.

    "https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9" // resources/views/front/categories/view.blade.php
    https://www.thecanadianencyclopedia.ca/images/tce_placeholder.jpg?v=e9dca980c9bdb3aa11e832e7ea94f5d9 Smoking

  • Article

    AtkinsRéalis

    AtkinsRéalis (formerly SNC-Lavalin) is a global engineering and construction firm based in Montreal, Quebec. It works in several industries including oil and gas, mining, cybersecurity and nuclear power. It also builds public and private infrastructure around the world. The company began in 1911 as an engineering consultant for power projects. In 1991, the original company, called SNC, merged with competitor Lavalin to become SNC-Lavalin. Since 2011, allegations of fraud and corruption on the part of SNC-Lavalin and several of its executives have plagued the company with scandal. In 2023, SNC-Lavalin changed its name and rebranded to AtkinsRéalis. Today the company employs over 30,000 people in several countries. In 2022, it registered $7.5 billion in revenue. In Canada, the company has received contracts to build major transit projects in cities including Toronto, Montreal and Vancouver. Worldwide, AtkinsRéalis oversees resource-extraction and infrastructure projects in North America, the Asia-Pacific region, Europe and the Middle East. Click here for definitions of key terms used in this article.

    "https://d3d0lqu00lnqvz.cloudfront.net/media/new_article_images/SNCLavalin/dreamstime_xl_144110990.jpg" // resources/views/front/categories/view.blade.php
    https://d3d0lqu00lnqvz.cloudfront.net/media/new_article_images/SNCLavalin/dreamstime_xl_144110990.jpg AtkinsRéalis

  • Article

    Snowmobiles in Canada

    A snowmobile is an automotive vehicle for travel on snow. It is steered by skis at the front and propelled by a belt of track at the back. Québécois mechanic Joseph-Armand Bombardier made the first snowmobile in 1935. Today, there are more than 600,000 registered snowmobiles in Canada. They are used for transportation, recreation, hunting and trapping, especially in rural areas and the North.

    "https://d3d0lqu00lnqvz.cloudfront.net/media/new_article_images/Snowmobile/snowmobile.jpg" // resources/views/front/categories/view.blade.php
    https://d3d0lqu00lnqvz.cloudfront.net/media/new_article_images/Snowmobile/snowmobile.jpg Snowmobiles in Canada

  • Article

    Snowshoes

    Snowshoes are footwear that help to distribute the weight of a person while they walk over deep snow, preventing them from sinking too far into the snow with every step. In the past, Indigenous peoples used snowshoes for winter travel in Canada, outside the Pacific and Arctic coasts. Snowshoeing has since become a popular Canadian pastime, enjoyed by hikers and sportspeople. 

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/d42168e9-b088-44c8-8e61-25af2ac1ff3c.jpg" // resources/views/front/categories/view.blade.php
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/d42168e9-b088-44c8-8e61-25af2ac1ff3c.jpg Snowshoes