Browse "Science & Technology"

Displaying 661-675 of 785 results

  • Article

    Soil Science

    Soil science is the science that deals with soils as a natural resource. Studies focus on soil formation, classification and mapping, and the physical, chemical and biological properties and fertility of soils as such and in relation to their management for crop production.

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  • Article

    Solar Energy

    The energy contained in sunlight is the source of life on Earth. Humans can harness it to generate power for our activities without producing harmful pollutants. There are many methods of converting solar energy into more readily usable forms of energy such as heat or electricity. The technologies we use to convert solar energy have a relatively small impact on the environment. However, they each have disadvantages that have kept them from being widely adopted. In Canada, the use of solar energy to generate electricity and heat is growing quickly and is helping reduce pollution related to energy production. Despite Canada’s cold climate and high latitudes (which get less direct sunlight than mid-latitudes), solar power technologies are used in many places, from household rooftops to large power plants. The Canada Energy Regulator (formerly the National Energy Board) expects solar power to make up 3 per cent of Canada’s total electricity generation capacity by 2040.

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  • Article

    Some SI-derived Units with Special Names

    Some SI-derived Units with Special Names Some SI-derived Units with Special Names Quantity Unit (Symbol) Derivation Mechanical force Newton (N) (m kg)/s² pressure pascal (Pa) N/m² energy, work joule (J) N m power watt (W) J/s frequency hertz (Hz) cycles/s Electrical electrical potential volt (V) W/A electrical resistance ohm <W > V/A electrical charge coulomb (C) A s electrical capacitance farad (F) C/V magnetic flux weber (Wb) V s magnetic flux density tesla (T) Wb/m²...

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  • Article

    Sonar

    Sonar (sound navigation and ranging), method for locating objects by the reflection of sound waves. It is used naturally by such animals as BATS and DOLPHINS to locate food and obstacles.

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  • Macleans

    Space Lab Under Construction

    This is ground zero, the holy of holies of the U.S. space program. The flight control room at Johnson Space Center in Houston is instantly familiar from a dozen movies and a thousand newscasts.This article was originally published in Maclean's Magazine on May 17, 1999

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  • Collection

    Space Science and Exploration

    This collection brings together articles and resources about space science and space exploration. Access articles, biographies and timelines to learn more about space technology and Canadian astronauts.

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  • Article

    Space Technology

    An agreement signed with the US National Aeronautics and Space Administration (NASA) led to the launching of a series of 4 Canadian satellites, beginning with Alouette 1 (on 29 Sept 1962) from the Western Test Range in Vandenburg, California.

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  • Macleans

    Space Travel Challenges

    This article was originally published in Maclean’s magazine on October 14, 1996. Partner content is not updated. For mankind, the adventure began at 9:07 a.m. Moscow time on April 12, 1961. A Soviet air force major named Yuri Gagarin blasted into the Siberian sky aboard a five-ton spacecraft and the world marvelled at the astounding news that he had landed safely after circling the Earth in just 108 minutes.

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  • Article

    Spar Aerospace Limited

    Spar Aerospace Limited, see ELECTRONICS INDUSTRY.

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  • Article

    Specific Learning Disabilities

    ​Children and youth with learning disabilities typically have average to above average intelligence but also have problems perceiving (making sense of) or using information that results in a pattern of uneven abilities and observable weaknesses in reading, writing, speaking, listening, problem solving, mathematics, and social skills. 

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  • Article

    Spodumene

    Spodumene is a lithium aluminum silicate (8.0% Li2O, 27.4% Al2O3, 64.6%SiO2) and is the world's most common commercially mined lithium ore mineral. Petalite, lepidolite and amblygonite are also mined in different parts of the world.

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  • Article

    Sports Medicine

    Sports medicine practitioners help serious athletes plan preseason training and testing, provide early treatment for injuries, identify groups that may be susceptible to risk, and record frequencies in patterns of injuries.

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  • Article

    St Elmo's Fire

    St Elmo's Fire is a blue or reddish glow, sometimes with the appearance of a flame, accompanying a powerful electrical discharge from a pointed conducting object in an intense electric field.

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  • Article

    Station PAPA

    Station PAPA Ocean Weather Station "P" is commonly called Station PAPA after the code word for the letter P in the phonetic alphabet used by radio operators. Station PAPA is located in the N Pacific Ocean (50° N, 145° W) and has a water depth of 4200 m.

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  • Article

    Statistics

    Statistics is the science concerned with the collection and analysis of numerical information to answer questions wisely. The term also refers to the numerical information that has been collected. Statistics has many applications in Canada, from government censuses and surveys, to decision making in industry, to medical research and technological innovation.

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