Geophysical Observatories
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Home > Art, Film & Photography > Geophysical Observatories: Toronto Magnetic and Meteorological Observatory, Colaba Observatory, Hong Kong Observatory, Mauna Loa Observatory
Geophysical Observatories: Toronto Magnetic and Meteorological Observatory, Colaba Observatory, Hong Kong Observatory, Mauna Loa Observatory

Geophysical Observatories: Toronto Magnetic and Meteorological Observatory, Colaba Observatory, Hong Kong Observatory, Mauna Loa Observatory


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About the Book

Chapters: Toronto Magnetic and Meteorological Observatory, Colaba Observatory, Hong Kong Observatory, Mauna Loa Observatory, Kew Observatory, Eskdalemuir Observatory, Intermagnet, Nasa Earth Observatory. Source: Wikipedia. Pages: 37. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: The Toronto Magnetic and Meteorological Observatory is a historical observatory located on the grounds of the University of Toronto, in Toronto, Ontario, Canada. The original building was constructed in 1840 as part of a worldwide research project run by Edward Sabine to determine the cause of fluctuations in magnetic declination. Measurements from the Toronto site demonstrated that sunspots were responsible for this effect on Earth's magnetic field. When this project concluded in 1853, the observatory was greatly expanded by the Canadian government and served as the country's primary meteorological station and official timekeeper for over fifty years. The observatory is the country's oldest surviving scientific institution, and is considered the birthplace of Canadian astronomy. The original observatory: the main building is on the right, with the dome visible, and the roof of the smaller buried building is just visible over the fence. Painted by William Armstrong in 1852.Compasses tended to "wander" from north when measurements were taken at different locations or even at a single location over a period of time. The astronomer Edmund Halley first noted this and the problems it would cause for navigation in 1701. It was also believed that whatever was causing this effect might be causing changes in the weather, and that studying magnetic variance might lead to better weather prediction. In 1833 the British Association for the Advancement of Science commissioned a series of magnetic measurements across the Unit...More: http://booksllc.net/?id=12888768


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Product Details
  • ISBN-13: 9781156270448
  • Publisher: Books LLC
  • Publisher Imprint: Books LLC
  • Height: 152 mm
  • No of Pages: 38
  • Spine Width: 2 mm
  • Weight: 68 gr
  • ISBN-10: 1156270448
  • Publisher Date: 15 Sep 2010
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Sub Title: Toronto Magnetic and Meteorological Observatory, Colaba Observatory, Hong Kong Observatory, Mauna Loa Observatory
  • Width: 229 mm


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