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Create AccountCreated 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.
The Internet is a global network of computers that communicate with each other. This exchange happens through a set of rules called protocols. Since Internet use became widespread in the 1990s, the system has affected most aspects of life. It has had both productive and destructive effects. The Internet has changed the way Canadians learn and work, buy products and services, communicate and consume entertainment. Most people think of the Internet as the World Wide Web. However, it takes a number of different forms, including networked physical objects called the Internet of Things.
Click here for definitions of key terms used in this article.
The dark grey lunar surface reflects only 7% of the sunlight it receives (comparable to the reflectivity of black soil). The moon is dominated by thousands of craters, ranging from microscopic pits to gigantic Clavius, diameter 230 km.
Ophthalmology is the medical specialty concerned with the eyes and their relationship to the body.
Music therapy. As defined by the Canadian Association for Music Therapy, music therapy is 'the skilful use of music to aid the physical, psychological and emotional integration of the individual, and in the treatment of an illness or disability.
Scurvy is a disease caused by a dietary deficiency of vitamin C (ascorbic acid). The disease has occurred with regular frequency throughout human history and prehistory in populations lacking fresh foods, especially vegetables and meat.
Birth control means the deliberate prevention of conception and pregnancy. The birth control methods used in Canada range from the simplest (like abstinence) to the most complex (like male or female surgical sterilization). (See also History of Birth Control in Canada.)
This article was originally published in Maclean’s magazine on December 1, 1997. Partner content is not updated.
The first serious bout was back in 1963, when he was attending Queen's University and, just before final exams, locked himself in his dorm room for two weeks.This article was originally published in Maclean’s magazine on December 9, 1996. Partner content is not updated.
Call it the Great Mall of China. Two years ago, Prime Minister Jean CHRÉTIEN led nine premiers and more than 400 business people on a mission to vastly expand trade with the world's most populous market.The Nova Scotia Nautical Institute was an institute for seamanship training founded in 1872. It was common in England and Canada, which followed England in marine matters, to have people called "crammers" to assist mariners to pass their examinations, following apprenticeship on board ship.
The ultrasound showed seven babies. Septuplets, the doctor told the mother, and the odds against their survival were "astronomical." She could, of course, choose to abort some or all of the seven fetuses.
Canada's national health-insurance program (also called medicare) is designed to ensure that every resident of Canada receives medical care and hospital treatment, the cost of which is paid through general taxes or through compulsory health-insurance premiums. Medicare developed in 2 stages.
To some extent, the history of engineering is the history of humanity's progress in using tools and observations on the nature of matter to overcome physical limitations and to modify, harness and control the natural environment.
"Plant" refers to familiar land plants, and also to aquatic plants, mosses, liverworts and algae plants. Although not technically plants, fungi and bacteria are often included. Palaeobotany is the study of ancient plant life using fossil evidence. Plant fossils are found coast-to-coast in Canada, from 45-million-year-old mosses in British Columbia to fossil forests on Axel Heiberg and Ellesmere islands in the Canadian Arctic.
The research company of Atomic Energy of Canada LTD (AECL) operates 2 major nuclear energy research centres in Canada: Chalk River Nuclear Laboratories (CRNL), and Whiteshell Nuclear Research Establishment (WNRE).
Ontario Hydro was a Crown corporation owned by the Ontario government until it was privatized in 1999.
Canada adopted quarantine legislation in 1872, five years after Confederation. It was replaced by the current Quarantine Act, which was passed by the Parliament of Canada and received royal assent in 2005. The act gives sweeping powers to the federal health minister to prevent the introduction and spread of communicable diseases. These powers can include health screenings, the creation of quarantine facilities and mandatory isolation orders. The Quarantine Act was introduced in the wake of the severe acute respiratory syndrome (SARS) crisis of 2003. It was invoked in March 2020 in response to the COVID-19 pandemic.
Medicine bundles (also called “sacred bundles”), wrapped collections of spiritually significant items, were the focus of most Indigenous spiritual rituals in the Plains region (see Plains Indigenous Peoples in Canada). A bundle might be a few feathers wrapped in skin or a multitude of objects such as animal skins, roots, or stone pipes inside a rawhide bag.
Pollution can be defined as the release of any material, energy or organism that may cause immediate or long-term harmful effects to the natural ENVIRONMENT. Pollution was viewed initially as the unsightly mess or visible environmental damage resulting from careless disposal of various materials.
