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Displaying 101-120 of 810 results
Article

Firearms

For many centuries, a legend has persisted that gunpowder was invented in China. Until recently, however, there was no real proof to support the story. In 1986, a team of researchers headed by Dr. Joseph Neeham at Cambridge University published the necessary evidence.

Article

Entomology

Entomology is the branch of zoology dealing with the study of insects, although which organisms are included is open to interpretation.

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Technical Education

From its origins in manual training "shop" and industrial arts, technical education has consisted of practical and applied subject matter that reflects the practices of current society.

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VIA Rail Canada Inc.

In 1981 VIA cancelled or reduced numerous routes in an attempt to make passenger service more efficient. Services in parts of the country were seriously affected and the Liberal government was widely criticized. A nonconfidence vote over the issue in October 1981 was won by the government.

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Geothermal Energy

Geothermal Energy is the exploitable heat within the Earth. The interior of the planet is maintained at a high temperature by a vast store of heat, of which part remains from the formation of the Earth and part is continually generated by the decay of radioactive elements

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Botulism

Human botulism can occur primarily as food-borne botulism, infant botulism or wound botulism.

Article

Evolution

Modern understanding of evolution began in 1859 with publication of Charles Darwin's On the Origin of Species by Means of Natural Selection.

Article

Energy

The term "energy" is often used interchangeably with the term "power," but incorrectly so. Energy is defined as the capacity to do work and is measured in joules (J) or watt hours (1 Wh = 3600 J).

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Electric Power

Electricity is a property of the atomic structure of matter, and is manifested as attraction between 2 oppositely charged bodies or repulsion between 2 similarly charged bodies.

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Criminology

Most of the criminological research in Canada has been done at those universities where centres focusing on research have evolved. The Université de Montréal established Canada's first School of Criminology with Denis Szabo in 1960.

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Disability

Disability is defined by the World Health Organization (WHO) as the temporary, prolonged or permanent reduction or absence of the ability to perform certain commonplace activities or roles, sometimes referred to as activities of daily living.

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Dietetics

Dietetics (from the Greek diaita, meaning "mode of life") has been implicated in the cause, cure and prevention of disease from earliest recorded history.

Article

de Havilland Dash 7

De Havilland Dash 7, DHC-7, STOL aircraft designed for efficient transport from city centres. It first flew March 1975 after a long development costing $120 million, four-fifths of which was paid by the federal government. Its

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de Havilland Caribou

De Havilland Caribou, DHC-4, twin-engined STOL aircraft capable of taking off in only 220 m. It was characterized by the sharp upward angle of the rear fuselage, providing access for large loads. It first flew July 1958, and was used mostly in a military role.

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Death and Dying

Death, the irreversible cessation of life, has always intrigued and frightened mankind. Every known culture has attempted to provide an explanation of its meaning; like birth or marriage it is universally considered an event of social significance, amplified by ritual and supported by institutions.

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Churchill Falls

The project was undertaken by a subsidiary of British Newfoundland Corp Ltd (Brinco), and was at the time the largest civil engineering project ever undertaken in North America. Eighty strategically placed dikes pooled the vast waters of the Labrador Plateau in the Smallwood Reservoir.

Article

Cod Liver Oil

Cod Liver Oil was in the past a primary source of vitamin A, essential for bone growth, health of skin and mucous membranes, and night vision. Today, many other preparations containing vitamin A are available. Before the 1920s, most cod liver oil came from Norwegian COD.