Science & Technology | The Canadian Encyclopedia

Browse "Science & Technology"

Displaying 571-585 of 846 results
  • Article

    Oil Sands

    The Canadian oil sands (or tar sands) are a large area of petroleum extraction from bitumen, located primarily along the Athabasca River with its centre of activity close to Fort McMurray in Alberta, approximately 400 km northeast of the provincial capital, Edmonton. Increased global energy demand, high petroleum dependency and geopolitical conflict in key oil producing regions has driven the exploration of unconventional oil sources since the 1970s which, paired with advances in the field of petroleum engineering, has continued to make bitumen extraction economically profitable at a time of rising oil prices. Oil sands are called “unconventional” oil because the extraction process is more difficult than extracting from liquid (“conventional”) oil reserves, causing higher costs of production and increased environmental concerns.

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/55ab3410-4b51-409d-bdb8-019dbd2c6d20.jpg" // resources/views/front/categories/view.blade.php
    
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/55ab3410-4b51-409d-bdb8-019dbd2c6d20.jpg Oil Sands
  • Article

    Oilseed Crops

    Oilseed Crops are grown primarily for the oil contained in the seeds. The oil content of small grains (eg, wheat) is only 1-2%; that of oilseeds ranges from about 20% for soybeans to over 40% for sunflowers and rapeseed (canola).

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/dc2050ae-b79f-4f42-9cb0-d37a157abffa.jpg" // resources/views/front/categories/view.blade.php
    
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/dc2050ae-b79f-4f42-9cb0-d37a157abffa.jpg Oilseed Crops
  • Macleans

    Olestra Controversy

    This article was originally published in Maclean’s magazine on February 5, 1996. Partner content is not updated. Pass the potato chips. Olestra, a new synthetic food oil with zero calories, is promising to take the fat - and the guilt - out of greasy junk food. "This is something people really want," says Chris Hassall, a senior scientist with Cincinnati-based Procter & Gamble Co.

    "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 Olestra Controversy
  • Macleans

    Olivieri Medical Dispute Settled

    This article was originally published in Maclean’s magazine on February 8, 1999. Partner content is not updated. On all sides, the relief was obvious. Last week, the poisonous, 2 ½-year feud that pitted internationally acclaimed blood researcher Dr. Nancy Olivieri against the prestige and power of Toronto's Hospital for Sick Children ended in a face-saving compromise.

    "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 Olivieri Medical Dispute Settled
  • Article

    Ontario Hydro

    Ontario Hydro was a Crown corporation owned by the Ontario government until it was privatized in 1999.

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/4c2c080b-2319-41db-bfdd-da332a9d805d.jpg" // resources/views/front/categories/view.blade.php
    
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/4c2c080b-2319-41db-bfdd-da332a9d805d.jpg Ontario Hydro
  • Macleans

    Ontario Hydro Meltdown

    This article was originally published in Maclean’s magazine on August 25, 1997. Partner content is not updated. Carl Andognini gives his diamond pinky ring a fiddle and offers a thin smile. A very thin smile. He has just come from yet another meeting with a crowd of ONTARIO HYDRO staffers in the mega-corporation’s mirrored headquarters in downtown Toronto.

    "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 Ontario Hydro Meltdown
  • Macleans

    Ontario Hydro to be Privatized

    This article was originally published in Maclean’s magazine on February 12, 1996. Partner content is not updated.

    "https://d3d0lqu00lnqvz.cloudfront.net/media/media/4c2c080b-2319-41db-bfdd-da332a9d805d.jpg" // resources/views/front/categories/view.blade.php
    
    https://d3d0lqu00lnqvz.cloudfront.net/media/media/4c2c080b-2319-41db-bfdd-da332a9d805d.jpg Ontario Hydro to be Privatized
  • Macleans

    Ontario Hydro's $6 Billion Loss

    It was a sight to behold: men and women who have dumped all over the province's public electrical utility from the dawn of political time, running in rhetorical circles in an effort to persuade worried voters and nervous consumers that Ontario Hydro's decision to write $6.This article was originally published in Maclean's Magazine on March 2, 1998

    "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 Ontario Hydro's $6 Billion Loss
  • Macleans

    Ontario Implements Tax Break

    It was perhaps ironic that Ontario's controversial Conservative government could not even cut taxes without sparking an agonized debate. Eleven months after Premier Mike Harris swept to power, he fulfilled a key election promise in last week's budget, introducing the first stages of a 30.This article was originally published in Maclean's Magazine on May 20, 1996

    "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 Ontario Implements Tax Break
  • Article

    Ontario Research Foundation

    The Ontario Research Foundation (ORF) was established as an independent corporation by a provincial Act in 1928; laboratory facilities were provided at the outset.

    "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 Ontario Research Foundation
  • Article

    Ophthalmology

    Ophthalmology is the medical specialty concerned with the eyes and their relationship to the body.

    "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 Ophthalmology
  • Article

    Opting-Out

    Opting-Out originated as a device by which one or more provinces choose not to participate in a federal-provincial shared cost program; instead the province receives direct payment (in cash or tax room) of funds which would have been spent there.

    "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 Opting-Out
  • Article

    Optometry

    Optometry [Gk optos, "visible" and metron, "measure"] is the profession of examining eyes for faults of refraction, ocular mobility and visual perception and of the treatment of abnormal conditions with correctional lenses and orthoptics.

    "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 Optometry
  • Article

    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.

    "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 Organic Agriculture
  • Macleans

    'Organic' Food Label Questioned

    While working as an independent organic food inspector, Mischa Popoff says he felt like "a police officer without a billy club or handcuffs.This article was originally published in Maclean's Magazine on September 10, 2007

    "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 'Organic' Food Label Questioned