John Herbert Chapman

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John Herbert Chapman (August 28, 1921 – September 28, 1979) from London, Ontario, son of Lt. Col. Lloyd Chapman and Kathleen Chapman, was a Canadian space researcher. Chapman started his career with his work on radio propagation and the ionosphere. He later received a Master of Science degree and a Ph.D. in physics at McGill University in Montreal, Quebec. After his studies at university Chapman got his first position in the government with the Defence Research Board (DRB). He was then promoted to the position of section leader of the ionospheric propagation unit at the Defense Research Telecommunications Establishment (DRTE) in 1951 at Shirley's Bay, a Canadian military and civilian telecommunication research campus.He was also a superintendent.

London, Ontario City in Ontario, Canada

London is a city in Southwestern Ontario, Canada along the Quebec City–Windsor Corridor. The city had a population of 383,822 according to the 2016 Canadian census. London is at the confluence of the Thames River, approximately 200 km (120 mi) from both Toronto and Detroit; and about 230 km (140 mi) from Buffalo, New York. The city of London is a separated municipality, politically separate from Middlesex County, though it remains the county seat.

Canadians citizens of Canada

Canadians are people identified with the country of Canada. This connection may be residential, legal, historical or cultural. For most Canadians, several of these connections exist and are collectively the source of their being Canadian.

Radio propagation behavior of radio waves as they travel, or are propagated, from one point to another, or into various parts of the atmosphere

Radio propagation is the behavior of radio waves as they travel, or are propagated, from one point to another, or into various parts of the atmosphere. As a form of electromagnetic radiation, like light waves, radio waves are affected by the phenomena of reflection, refraction, diffraction, absorption, polarization, and scattering. Understanding the effects of varying conditions on radio propagation has many practical applications, from choosing frequencies for international shortwave broadcasters, to designing reliable mobile telephone systems, to radio navigation, to operation of radar systems.

While at Shirley's Bay he worked on a number of projects. One of the projects he directed was the ground-breaking Canadian satellite called Alouette. The DRTE having no experience developing satellites had to work quite hard to think of and counter all the difficulties they would face in the harsh environment of space. Because of his work on Alouette he was promoted to chairman of government study group to study the upper atmosphere and space programs in Canada.

Alouette 1 Canadian satellite

Alouette 1 is a deactivated Canadian satellite that studied the ionosphere. Launched in 1962, it was Canada's first satellite, and the first satellite constructed by a country other than the Soviet Union or the United States. Canada was the fourth country to operate a satellite, as the British Ariel 1, constructed in the United States by NASA, preceded Alouette 1 by five months. The name "Alouette" came from the French for "skylark" and the French-Canadian folk song of the same name.

Satellite Human-made object put into an orbit

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While chairman, he compiled his findings into "The Chapman Report" in which he argued that Canada needed to redirect its space program in order to continue its ongoing research more effectively and efficiently. "The Chapman Report" remains an important document in helping the Canadian Space Agency choose what they should work on when it comes to space programs.

Canadian Space Agency space agency of Canada

The Canadian Space Agency was established by the Canadian Space Agency Act which received Royal Assent on May 10, 1990. The agency reports to the federal Minister of Innovation, Science, and Economic Development. The current president of the Canadian Space Agency is Sylvain Laporte, who took the position March 9, 2015 following the announcement of his appointment on February 27, 2015.

Chapman was given awards for his work in aero-space technology. The first was given by the Royal Society of Canada in 1966; he also received an Engineering medal from the Association of Professional Engineers of Ontario and the Dillinger Gold Medal from the International Union of Radio Scientists the same year. In 1967 Chapman was awarded with The Chree Medal and Prize and the McCurdy award from the Canadian Aeronautics and Space Institution.

Royal Society of Canada academy in Canada

The Royal Society of Canada, also known as the Academies of Arts, Humanities and Sciences of Canada, is the senior national, bilingual council of distinguished Canadian scholars, humanists, scientists and artists. The primary objective of the RSC is to promote learning and research in the arts, the humanities and the sciences. The RSC is Canada’s National Academy and exists to promote Canadian research and scholarly accomplishment in both official languages, to recognize academic and artistic excellence, and to advise governments, non-governmental organizations and Canadians on matters of public interest.

Professional Engineers Ontario (PEO), up to 1993 known as the Association of Professional Engineers of Ontario (APEO), is the self-regulatory body that governs Ontario's 85,000 professional engineers, and sets standards for and regulates engineering practice in the province. It has a statutory mandate under the Professional Engineers Act of Ontario to protect the public interest where engineering is concerned. It was created in 1922 and is mandated to educating its members to latest developments and maintaining a Code of Ethics that puts the public interest first. Licensed professional engineers can be identified by the P.Eng. after their names.

Chapman was a member of the Royal Society of Canada. He was also part of the National Research Council (NRC) Associate committee on Space Research, a council of the top Canadian space scientists. He also served on the International Union of Radio Science and the American Geophysical Union.


The International Union of Radio Science is one of 26 international scientific unions affiliated to the International Council for Science (ICSU).

American Geophysical Union Nonprofit organization of geophysicists

The American Geophysical Union (AGU) is a 501(c)(3) nonprofit organization of geophysicists, consisting of over 62,000 members from 144 countries. AGU's activities are focused on the organization and dissemination of scientific information in the interdisciplinary and international field of geophysics. The geophysical sciences involve four fundamental areas: atmospheric and ocean sciences; solid-Earth sciences; hydrologic sciences; and space sciences. The organization's headquarters is located on Florida Avenue in Washington, D.C.

After his death in 1979, the Canadian Space Agency was formed to organize and give Canada its own space agency to create a central place to meet and work on Canadian space projects. With this new organization Canada has been able to construct and launch new projects into orbit. One of the most important Canadian projects is Canadarm which has become used frequently on the International Space Station (or ISS for short).

Canadarm

The Shuttle Remote Manipulator System (SRMS), also known as Canadarm, is a series of robotic arms that were used on the Space Shuttle orbiters to deploy, maneuver and capture payloads. After the Space Shuttle Columbia disaster, the Canadarm was always paired with the Orbiter Boom Sensor System (OBSS), which was used to inspect the exterior of the Shuttle for damage to the thermal protection system.

International Space Station Habitable artificial satellite in low Earth orbit

The International Space Station (ISS) is a space station, or a habitable artificial satellite, in low Earth orbit. Its first component was launched into orbit in 1998, with the first long-term residents arriving in November 2000. It has been inhabited continuously since that date. The last pressurised module was fitted in 2011, and an experimental inflatable space habitat was added in 2016. The station is expected to operate until 2030. Development and assembly of the station continues, with several new elements scheduled for launch in 2019. The ISS is the largest human-made body in low Earth orbit and can often be seen with the naked eye from Earth. The ISS consists of pressurised habitation modules, structural trusses, solar arrays, radiators, docking ports, experiment bays and robotic arms. ISS components have been launched by Russian Proton and Soyuz rockets and American Space Shuttles.

When the headquarters building of the Canadian Space Agency was completed in 1992, it was named the John H. Chapman Space Centre, in his honour.

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