Browse "Science & Technology"

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Article

Association canadienne-française pour l'avancement des sciences (Acfas)

Created in 1923, l'Association canadienne-française pour l'avancement des sciences (Acfas) played a major role in the emergence of a French-speaking scientific community.
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Asteroids Named After Places in Canada

Asteroids were first discovered in 1801. Also known as minor planets, these rocky bodies are believed to have originated as planetesimals (small, solid celestial bodies) during the creation of the solar system, around 4.5 billion years ago. Asteroids orbit the Sun and can be as small as several metres or even as large as hundreds of kilometres in diameter. (See also Planet and Satellite.) There are estimated to be over 1.3 million asteroids in our solar system. Although most will never be seen by the naked eye, many asteroids are assigned names by the Working Group for Small Bodies Nomenclature of the International Astronomical Union (see Astronomy). Several hundred asteroids have been named in connection to Canada. Some of these asteroids describe places, while others honour people or commemorate events. This list includes ten asteroids which are named after places in Canada.
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Asthma

Asthma is a chronic inflammatory disease of the lungs that is marked by recurring episodes of airway obstruction. It is one of the most prevalent chronic conditions affecting Canadians. Asthma often begins in childhood, but initial onset can occur at any age.
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Canadian Astronauts

An astronaut is an individual involved in flight beyond the Earth’s atmosphere. Since the National Research Council of Canada held its first recruitment campaign in 1983, 14 Canadians have completed astronaut training and nine have participated in 17 missions to space. Specifically, they have flown as payload specialists, mission specialists, and flight engineers on NASA shuttle flights and expeditions to the International Space Station (ISS). Canadian astronauts have played key roles in repairing satellites and building the ISS using the Canadarm and Canadarm2 robotic technologies, and have advanced scientific knowledge by conducting a variety of experiments in space. (See also Robotics in Canada; Space Technology.)
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Astronomy

Astronomy is the science that studies the sun, the solar system, the remote stars, distant galaxies and all other detectable bodies in the universe. Its major subdisciplines include astrophysics, the closely related field of spectroscopy and cosmology. Astronomy is often regarded as the oldest science. For more than 5,000 years, motions in the sky have been used to predict events such as the annual flood of the Nile River. During the era of modern exploration, astronomy had practical applications in navigation, surveying and timekeeping. Modern astronomy, however, is more concerned with the physical and chemical nature of matter beyond Earth, where conditions of temperature, pressure and gravitational and magnetic fields allow astronomers to observe matter under extremes unattainable in terrestrial laboratories. Astronomy is also closely related to physics, chemistry, mathematics, geology, engineering and computer science.
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Astrophysics

Astrophysicists use many branches of physics: nuclear physics to study power-generation in stars; atomic physics to understand the spectra of stars and gaseous nebulae; and gas laws and magnetic theory to probe starspots and flares on star surfaces.
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Atomic Energy Control Board

The Atomic Energy Control Board (AECB) was established in 1946 under the Atomic Energy Control Act, with the declaration that nuclear energy is essential to the national interest (and therefore under the exclusive jurisdiction of the federal government).
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Automobile

Few inventions have left as profound a mark on the world as the automobile. The first automobiles built in Canada were regarded as novelties, but the Canadian automotive industry eventually expanded to become one of the country’s significant manufacturing and exporting sectors. Assembly-line production helped reduce the cost of automobiles and made it possible for more individuals to purchase them. The rise of the automobile has impacted travel and it has necessitated research and regulations into pollution, safety standards and sustainability (see Transportation; Traffic Law in Canada).
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Automobile Racing

The earliest automobile racing took the form of speed trials and tours. In 1900 F.S. Evans set a record of 3 hrs, 20 min, driving an automobile the 60 km between Toronto and Hamilton.
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Avian Influenza in Canada

Avian influenza, commonly known as “bird flu”, is a contagious viral disease that can affect several species of birds used in food production (e.g., chickens, turkeys), as well as pet birds, wild birds and some mammals (see Poultry Farming). The viruses responsible for the disease can be classified into two categories: high pathogenicity or low pathogenicity. The highly pathogenic H5N1 subtype of the avian influenza virus is transmissible to humans. In Canada, cases of avian influenza must be reported to the Canadian Food Inspection Agency.
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Aviation

Aviation, the art and science of flying, has been a practical reality since the early 20th century. Canadians have participated in its development almost from its inception.
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Canadian Aviation Disasters

There have been many tragic events in Canada’s aviation history. Some of these have involved Canadian aircraft, commercial as well as non-commercial. In other cases, many Canadians have died in the crash of a non-Canadian aircraft. Crashes that occurred over Canadian soil, or search and rescue efforts in which Canadians have played a large part, are also part of this history.
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Avro Arrow

The Avro Canada CF-105 Arrow (the Arrow) was a supersonic interceptor jet aircraft designed and built in the 1950s by A.V. Roe Canada (Avro). The Arrow was one of the most advanced aircraft of its era, helping to establish Canada as a world leader in scientific research and development. Though the Arrow was widely praised for its power and beauty, the program was cancelled in February 1959 by the government of Prime Minister John Diefenbaker. This resulted in the loss of at least 25,000 direct and indirect jobs. Many believe that the Arrow’s cancellation was a betrayal of Canada’s aerospace industry. Others assert that the jet was extravagant and had little chance of competing with impending innovations. At best, Avro and the Arrow were historic examples of Canadian ingenuity and intriguing case studies of unrealized potential.
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Avro Canada Jetliner

Avro Canada Jetliner (C-102), North America's first jet airliner, designed in Canada by James Floyd. It first flew on 10 August 1949, exceeding 800 km/h, the first flight of a jet transport in North America, second in the world.
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Avro CF-100 Canuck

The CF-100 Canuck, manufactured by A.V. Roe Canada (Avro), was the first jet fighter designed and built entirely in Canada. It flew in front-line air defence from 1953 until the early 1960s.
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