Search for ""

Displaying 621-640 of 825 results
Article

Dioxine

The term dioxin applies to any of 75 chlorinated derivatives of dibenzo-p-dioxin. The various types of dioxin are quite different from one another, the greatest difference being in their toxicity.

Article

The Lost Villages

The Lost Villages are nine Canadian communities that were destroyed through the unprecedented land expropriation and construction of the St. Lawrence Seaway and Power Project in the 1950s.

Article

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.

Article

Humboldt Broncos Bus Crash

One of Canada’s most high-profile highway tragedies occurred on 6 April 2018, when a bus carrying 28 members of the Humboldt Broncos junior hockey team collided with a transport truck at a highway intersection near Tisdale, Saskatchewan. The crash killed 16 team members: 10 players and 6 staff. It also led to new truck-driver training and licensing regulations and increased awareness about the availability and use of seat belts among bus passengers.

Article

Navigation

Evidence suggests that the Phoenicians, Arabs and ancient Greeks were familiar with the use of nighttime positions of stars and constellations to aid in marine navigation, but this knowledge was lost to Europeans in the Dark Ages and only regained after about the year 1000 from the Arabs.

Article

Bush Flying in Canada

In Canada, bush flying refers to aviation in sparsely populated northern areas. Flight in the Arctic and the “bush” of the Canadian Shield developed between the world wars. Early bush pilots faced the challenges of cold weather and vast distances between communities. Given the rarity of airstrips, their planes were often equipped with skis or floats so that they could take off and land on water or snow. This type of aviation was key to developing services and industries in the North. While the romantic image of the bush pilot is associated with the past, bush flying continues to serve remote communities in Canada.

Article

De Havilland Beaver

De Havilland Beaver, DHC-2, successor to the Noorduyn Norseman, was the all-purpose bush plane of the Canadian North. The Beaver was sturdy, reliable and able to take off and land on short lengths of land, water and snow. It has been called the best bush plane ever built. While de Havilland produced it for only 20 years — from 1947 to 1967 — many Beaver planes still fly today. The Beaver helped connect communities in remote areas of Canada, in addition to serving across the globe.

Article

Smallpox in Canada

Smallpox is an infectious disease caused by the variola virus. The disease arrived in what is now Canada with French settlers in the early 17th century. Indigenous people had no immunity to smallpox, resulting in devastating infection and death rates. In 1768, arm-to-arm inoculation became more widely practised in North America. By 1800, advances in vaccination helped control the spread of smallpox. Public health efforts also reduced rates of infection. In the 20th century, Canadian scientists helped the World Health Organization eradicate smallpox. Eradication was achieved in 1979, but virus stocks still exist for research and safety reasons.

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

Article

Misinformation in Canada

The advance of computers into all aspects of our lives and the rising role of the Internet have led many people to call this the Information Age. But with news travelling fast, and often with few checks and balances to ensure accuracy, it can also be seen as the Misinformation Age. Learning how to separate facts from misinformation or so-called fake news has become a critical modern skill as people learn to evaluate information being shared with them, as well as to scrutinize information they may share themselves.

Article

Northern Gateway Pipeline Proposal

The $7.9 billion Northern Gateway project was a pipeline proposal that Enbridge put forward in 2008. Northern Gateway would have carried diluted bitumen (“dilbit”) about 1,170 km from Bruderheim, Alberta to a terminal on the Pacific Ocean at KitimatBritish Columbia. Enbridge claimed that the project would create $1.2 billion in tax revenue for BC, as well as 560 jobs. The Federal Court of Appeal overturned the pipeline’s approval in 2016. That same year, the Liberal government of Prime Minister Justin Trudeau rejected the project.

Article

Epidemics in Canada

An epidemic occurs when an infectious disease spreads rapidly throughout a community at a particular time. Several epidemics have occurred over the course of Canadian history, the most disastrous being those which affected Indigenous peoples following the arrival of Europeans.

Article

Influenza (Flu) in Canada

Influenza, often referred to as the flu, is a common, contagious respiratory illness. There are four types of influenza viruses: A, B, C and D. While influenza A, B and C viruses can infect humans, influenza D is believed to primarily affect animals such as cattle and pigs. Influenza C is rare in comparison to influenza A and B, which are the main sources of the “seasonal flu,” or the viruses that circulate in Canada and other countries each winter. Influenza A is also the source of flu pandemics. Canada has experienced five influenza pandemics since the late 19th century, in 1890, 1918, 1957, 1968 and 2009. In Canada, influenza causes an estimated 12,200 hospitalizations and 3,500 deaths each year.