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Today's greenhouse industry uses the most modern technologies, which allow it to reduce their negative effects on the environment, to considerably improve the energetic efficiency of crops (used energy by unit production) and thus to remain competitive in national and international markets.

Sweat lodges are heated, dome-shaped structures used by Indigenous peoples during certain purification rites and as a way to promote healthy living.

Gerontology is the scientific study of AGING and its consequences including psychological, biological, and social changes confronting individuals, the social and economic issues created by growing numbers of older people in a population, and the opportunities older age brings with it.

The archaeological record is sometimes divided into historic and prehistoric periods, depending on the availability of written sources. In Canada, the prehistoric record extends back as much as 30 000 years (see Prehistory) in unglaciated portions of the northern Yukon.

ItalyThe UNIVERSITY OF ALBERTA has been active in southern Italy for several decades, in the ancient areas of Lucania and Apulia. This work started with the excavation of several indigenous pre-Roman sites, such as Botromagno, Monte Irsi and Roccagloriosa.

Hanoverhill Starbuck, Holstein sire (born 26 April 1979 in Port Perry, ON; died 17 September 1998 in St-Hyacinthe, QC).

Tommy Douglas — the father of socialized medicine in Canada and one of the country’s most beloved figures — once supported eugenic policies. In 1933, he received a Master of Arts in sociology from McMaster University for his thesis, “The Problems of the Subnormal Family.” In the thesis, Douglas recommended several eugenic policies, including the sterilization of “mental defectives and those incurably diseased.” His ideas were not unique, as two Canadian provinces (and 32 American states) passed sexual-sterilization legislation in the 1920s and 1930s. However, by the time Douglas became premier of Saskatchewan in 1944, he had abandoned his support for eugenic policies. When Douglas received two reports that recommended legalizing sexual sterilization in the province, he rejected the idea.

The practice of sterilization arose out of the eugenics movement and has a long, often hidden history in Canada. Sterilization legislation in Alberta (1928–72) and British Columbia (1933–73) attempted to limit the reproduction of “unfit” persons, and increasingly targeted Indigenous women. Coerced sterilization of Indigenous women took place both within and outside existing legislation, and in federally operated Indian hospitals. The practice has continued into the 21st century. Approximately 100 Indigenous women have alleged that they were pressured to consent to sterilization between the 1970s and 2018, often while in the vulnerable state of pregnancy or childbirth.

The pump drill was used by Aboriginal peoples to start fire and drill holes into materials such as wood, shell, bone and stone.

Palaeontology is the study of fossils, gives us knowledge of past life, helps us understand the nature of ancient organisms and provides information about the composition of the biomass of past times.

There are approximately 836,000 visually impaired Canadians, although only a small number of them have been blind from birth.

Perhaps more than any other art form, filmmaking is a collaborative art. Although in our celebrity-obsessed culture the actors or "stars" get the lion's share of attention, by the time any film reaches the screen, hundreds of craftspeople have had a hand in getting it there.

Anthropology is the comparative study of past and contemporary cultures, focusing on the ways of life and customs of people around the world. Subdisciplines have developed within anthropology, owing to the amount of information collected and the wide variety of methods and techniques used in research. The main branches are physical anthropology, archaeology, linguistic anthropology, ethnology (which is also called social or cultural anthropology) and applied anthropology. In Canada, early anthropologists included missionaries, explorers and traders who documented the lives of the Indigenous people they encountered. Later, the Geological Survey of Canada played a significant role in the development of Canadian anthropology.

For more than a century, the federal government has funded agricultural research through a network of research centres strategically placed in almost every province. This research program has played a major role in developing the more than $120-billion Canadian agrifood industry.

Current breast cancer incidence and mortality rates are available through the Canadian Cancer Society, which annually updates these and other statistics.

More remarkable was the use of an ice bridge across the St Lawrence River in the winters of 1880-81 and 1881-82, from Hochelaga to Longueuil [Montréal], to carry a standard-gauge railway; from January to March in each of those winters a small train, weighing 60 tons, safely used this unique bridge.

The first recordings made in Canada were those made 17 May 1878 by the Governor-General, Lord Dufferin, and his guests at Rideau Hall in Ottawa. On 17 May 1878 Lady Dufferin wrote in her diary (My Canadian Journal 1872-1878, Toronto 1969, p 292): 'This morning we had an exhibition of the phonograph.

Agroforestry is an intensive land management system that integrates the benefits from biological interactions created when trees or shrubs are intentionally grown with crops or livestock.

Arpent, a French measure of length and area. Numerous regional variants of the arpent coexisted in 17th-century France; of these, the arpent de Paris came into use in Canada before 1636 as part of a system of measures. The arpent de superficie, or square arpent (equivalent to 0.

The more pronounced the air movement (wind or moving air produced by walking, skiing or riding in a convertible) and the greater the temperature difference between the surface of the object and the air, the greater the heat loss.