Physics | The Canadian Encyclopedia

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  • Article

    Physics

    Physics is the study of matter and radiation, the space-time continuum that contains them, and the forces to which they are subject.

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  • Macleans

    Polar Lander Fails on Mars

    No one knows exactly what the surface of Mars is like, but Robert Zubrin has a pretty good idea. At least some of it, he says, is much like a frozen, god-forsaken corner of the Canadian Arctic called Haughton Crater. The terrain is similar - rough-strewn rock on the floor of a crater 16 km across.This article was originally published in Maclean's Magazine on December 20, 1999

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  • Article

    Quasar

    Quasar, a point-like astronomical object which radiates over a wide spectral range. Although the name is a contraction of a "quasi-stellar radio source", these objects also emit light, x-rays and even gamma rays.

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  • Article

    Royal Astronomical Society of Canada

    The Royal Astronomical Society of Canada began in 1868 when 8 amateur astronomers founded an astronomical club in Toronto. An expanded group obtained a charter in 1890, and the name "The Royal Astronomical Society of Canada" was adopted in 1903 with Edward VII's permission.

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  • Article

    Satellite

    However, the launch may be threatened by American interests.

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  • Article

    Satellite Communications

    Characteristics A typical satellite consists of a number of repeaters (transponders), each of which provides a large-capacity communication channel. Each transponder has a receiver tuned to a frequency range that has been allocated for uplink communication signals from Earth to the satellite.

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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

    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

    Synchrotron

    A synchrotron is a source of brilliant light that acts like a giant microscope to allow matter to be seen at the atomic level. Synchrotron light is millions of times brighter than sunlight and millions of times more intense than conventional X-rays.

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  • Article

    The Nature of Things

    The Nature of Things is television’s longest-running science series. It debuted on CBC on 6 November 1960. Originally a half-hour program that demonstrated scientific concepts, it evolved into an hour-long documentary during renowned scientist David Suzuki’s tenure as host (1979–2023). The groundbreaking program was among the first to present scientific findings on subjects such as HIV/AIDS and climate change. Over the course of more than 60 seasons and over 900 episodes, The Nature of Things has been seen in more than 80 countries. It has received 17 Gemini Awards and seven Canadian Screen Awards.

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