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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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Blindness and Visual Impairment

In Canada the largest agency serving blind and visually impaired persons is The Canadian National Institute for the Blind. CNIB has 9 geographic service divisions with over 60 regional offices, and the CNIB Library for the Blind serves all areas of Canada.

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Hydroelectricity in Canada

Hydroelectricity is energy produced from flowing water. The amount of energy produced depends on volume and speed: the more water moving at a fast rate, the more energy produced. For this reason, many hydroelectric stations are built near waterfalls. To produce energy, water is directed toward turbines — sometimes with the help of a dam — causing them to spin. In turn, the turbines make electrical generators spin and electricity is produced. It is a renewable, comparatively nonpolluting energy source and Canada’s largest source of electric-power generation.

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Woodward and Evans Light Bulb

In 1874, Canadians Henry Woodward and Mathew Evans patented a design for an incandescent light bulb. Their invention preceded that of American Thomas Edison by several years. In fact, the second patent (issued in 1876 in the United States) was among those that Edison bought as he refined the technology to create a longer-lasting bulb. Woodward and Evans’s early work on the light bulb in Toronto has gone largely unrecognized. It was nevertheless an important development in the invention of electric lighting.

Click here for definitions of key terms used in this article.

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Media Convergence

Media convergence refers to the merging of previously distinct media technologies and platforms through digitization and computer networking. This is also known as technological convergence. Media convergence is also a business strategy whereby communications companies integrate their ownership of different media properties. This is also called media consolidation, media concentration or economic convergence. (See also Media Ownership.)

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Meteors, Meteorites and Impact Craters

The solar system contains many objects smaller than the planets (or their satellites) travelling in individual orbits about the SUN; space between the planets also contains myriad dust grains in the micron size range. Near Earth, dust concentrations are only a few hundred particles per cubic kilometre, but 35 000 to 100 000 t of extraterrestrial material enters the atmosphere annually, swept up by our planet from debris that is in its path or crosses its path.

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Vaccination and Vaccine Hesitancy in Canada

Vaccination is the introduction of a vaccine into the body to produce immunity to a disease. Vaccine hesitancy is the refusal or delayed acceptance of vaccination due to fears or anxiety about vaccines. It includes a range of concerns such as uncertainty about vaccines’ contents and their safety and the belief that vaccines are responsible for causing other medical conditions (e.g., autism). Other factors include opposition to state control and infringement on individual liberty, suspicions about the pharmaceutical industry and a declining faith in science and medicine. In Canada, as in other wealthy countries, vaccine hesitancy has increased in recent years.

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Genetics

Genetics may be conveniently divided into 3 areas of study: transmission genetics, molecular genetics and population genetics.

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Sustainability in Canada

Sustainability is the ability of the biosphere, or of a certain resource or practice, to persist in a state of balance over the long term. The concept of sustainability also includes things humans can do to preserve such a balance. Sustainable development, for instance, pairs such actions with growth. It aims to meet the needs of the present while ensuring that future people will be able to meet their needs.

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Canadian Astronauts

An astronaut is an individual involved in flight beyond the Earth’s atmosphere. Since the Canadian Space Agency 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.

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Assisted Suicide in Canada

Assisted suicide is the intentional termination of one’s life, assisted by someone who provides the means or knowledge, or both (see also Suicide). Between 1892 and 2016, assisted suicide was illegal in Canada under section 241(b) of the Criminal Code. In 2015, after decades of various legal challenges, the Supreme Court of Canada decided unanimously to allow physician-assisted suicide. In June 2016, the federal government passed the Medical Assistance in Dying (MAID) Act, which established the eligibility criteria and procedural safeguards for medically assisted suicide.

This article contains sensitive material that may not be suitable for all audiences.

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UFOs in Canada

For 45 years, the Canadian government investigated unidentified flying objects (UFOs). Several of its departments and agencies collected sighting reports of UFOs in Canadian airspace from 1950 to 1995. These investigations started during the Cold War, spurred by fears of Soviet incursions. What began as a military question eventually became a scientific one. From the start, however, the government was reluctant to study this topic. It devoted few resources to it, believing UFOs to be natural phenomena or the products of “delusional” minds. By contrast, many Canadian citizens were eager for information about UFOs. Citizens started their own investigations and petitioned the government for action. In 1995, due to budget cuts, the government stopped collecting reports altogether. For their part, citizen enthusiasts have continued to investigate UFOs.

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Five Digital Technologies and their Challenges

In the span of several decades, digital technologies have changed how Canadians work, communicate, consume products and access information. Although technologies like self-driving cars and the Internet of Things may seem advanced, many such tools are still in their early stages. With the growth of the digital economy, digital technologies will continue to present opportunities and challenges. Here’s a look at five of these technologies and some of the risks that come with them.

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Birchbark Canoe

The birchbark canoe was the principal means of water transportation for Indigenous peoples of the Eastern Woodlands, and later voyageurs, who used it extensively in the fur trade in Canada. Light and maneuverable, birchbark canoes were perfectly adapted to summer travel through the network of shallow streams, ponds, lakes and swift rivers of the Canadian Shield. As the fur trade declined in the 19th century, the canoe became more of a recreational vehicle. Though most canoes are no longer constructed of birchbark, its enduring historical legacy and its popularity as a pleasure craft have made it a Canadian cultural icon.

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Keystone XL Pipeline

Keystone XL is a 1,947 km long pipeline project that would carry crude oil from Alberta to Nebraska. It is owned by Calgary-based TC Energy. The pipeline is named XL for “export limited.” First proposed in July 2008, it is the fourth phase of TC Energy’s existing Keystone Pipeline system. In Canada, Keystone XL has the support of both the federal and Alberta governments. However, in January 2021, United States president Joe Biden cancelled its permit on his first day in office. The project has also faced significant opposition and legal challenges on environmental grounds.

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TC Energy (formerly TransCanada)

TC Energy Corporation (formerly TransCanada Corporation) is a natural gas, oil and power-generation company headquartered in Calgary, Alberta. TC Energy owns more than 92,600 km of natural gas pipeline in North America and transports more than 25 per cent of the gas consumed on the continent. It also operates power plants and gas storage facilities. A public company, it trades on the Toronto Stock Exchange and the New York Stock Exchange under the symbol TRP. In 2018, TC Energy registered $13.7 billion in revenue and $3.5 billion in profit and held $98.9 billion in assets. The company employs about 7,300 people, more than half of them in Canada.

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Pipelines in Canada

Pipelines are systems of connected pipes used to transport liquids and gases — namely oil and natural gas — across long distances from source to market. More than 840,000 km of pipelines criss-cross the country, part of a larger oil and gas sector that employs between 100,000 and 200,000 Canadians. According to Natural Resources Canada, the sector earns the government an average of $19 billion in royalties, fees and taxes each year. It also contributes nearly 8 per cent of Canada’s gross domestic product.

Yet pipelines have also been controversial in Canada over fears that the fossil fuel use they facilitate could be significantly contributing to climate change. In recent years, Indigenous groups, environmentalists, municipalities, mayors and labour unions have opposed numerous pipeline projects they believe could contaminate local waterways through spills and leaks.

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Trans Mountain Pipeline Expansion Project

The Trans Mountain Expansion is a project to build about 980 km of new pipe, most of which will run parallel to the existing Trans Mountain oil pipeline. The new line will carry diluted bitumen, or “dilbit,” from Edmonton, Alberta to Burnaby, British Columbia. The expansion will increase the pipeline route’s overall capacity from 300,000 barrels per day to 890,000 barrels per day.

The project’s first owner, Kinder Morgan Canada, sold it to the Government of Canada in 2018. The Trans Mountain Expansion has been a focus of environmental and economic debates, as well as political conflicts. The $12.6 billion project is now under construction.

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