Excerpt:
Exhibitions in the History of Medicine
Exhibitions in the History of Medicine
Welcome to NAL, the world's largest agricultural library, creator of AGRICOLA.
The first tide-predicting machine was designed by Sir William Thomson (afterwards Lord Kelvin) and was made in 1873 under the auspices of the British Association for the Advancement of Science. This was an integrating machine designed to compute the height of the tide in accordance with formula #1 below.
The following collection of articles is found in the appendices of the Annual Reports of the Superintendent of the Coast Survey and Coast and Geodetic Survey for the years 1844 to 1910. In the years 1844 to 1890, the Coast Survey reports reflect the growth of Nineteenth Century American physical science. In particular, the evolution of many facets of the disciplines of Geodesy, Geophysics, Hydrography (in the sense of measuring depths for nautical charting), Topography, and Oceanography are traced in the reports of the Coast Survey.
This is a very significant bibliography of articles, pieced together from the Annual Reports of the Superintendent of the Coast Survey and Coast and Geodetic Survey for the years 1844 to 1910. To put the articles in context, the site provides an nice introduction to the purpose and functions of the Surveys and gives links to the National Archives and Library of Congress which can offer supplemental information. The articles offer a great insight into the developing understaning of science and nature over a 66 year period. The contents are indexed by author, by chronology, and by function. Unfortunately, the actual texts have not been made available online.
Q&A answers the snow questions we receive. If you want to know why snow is white, or why forecasting snow can be so difficult, this is the section for you.
Facts brings together interesting bits of information we have come across in answering questions.
Use our Glossary to learn the difference between a blizzard and a squall, or to find out what graupel is.
The Snow Gallery contains historic photos of blizzards and snow from the National Weather Service.
The Nation's first Federal conservation agency, initiated in 1871, was devoted to the protection, study, management, and restoration of fish. This agency was the United States Commission of Fish and Fisheries, which was usually just called the Fish Commission.
In the evening of March 25, 1948, a tornado roared through Tinker Air Force Base (AFB), Oklahoma, causing considerable damage, a few injuries, but no fatalities. However, the destruction could have been much worse. A few hours earlier Air Force Captain Robert C. Miller and Major Ernest J. Fawbush correctly predicted that ATMOSPHERIC CONDITIONS were ripe for tornadoes in the vicinity of Tinker AFB. This first tornado forecast was instrumental in advancing the nation's commitment to protecting the American public and military resources from the dangers caused by natural hazards.
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An assortment of highlights -- plus a few lowlifes -- about early U.S. radio history. Over time more articles will be added, to cover additional topics and expand on the existing ones. (This webpage was begun September 30, 1996, and was located at www.ipass.net/~whitetho/index.html until March 11, 2003).
This site has a large collection of articles about early radio technology and use in the United States. The site is divided into 24 sections, each with an essay with inter-linked supplemental articles. These entries range in size from a few hundred to a few thousand words. The topics covered include material such as a period overview, personal radio use, radio at sea, financing radio, radio frauds and a series of original articles about the medium. There is no overarching navigation bar or site map, but the intro page does include a search tool.
A comprehensive knowledge of the geoscience of the Canadian landmass and its offshore is fundamental to economic development, public safety, environmental protection and national sovereignty. To acquire, interpret and make available that information to all Canadians is the mission of the Geological Survey of Canada.
This Canadian site includes a long essay detailing the history of the Geological Survey of Canada. Also included in the site is a section devoted to the life and work of William Logan, one of Canada's most historically important scientists and the namesake of Canada's highest mountain. The site includes information about Logan in his role as founder of Canada's Geological Survey and provides information about the Logan manuscript archives. This site will be of most interest to historians of geology and exploration.
The Library of Congress is the nation's oldest federal cultural institution, and it serves as the research arm of Congress. It is also the largest library in the world, with more than 126 million items on approximately 530 miles of bookshelves. The collections include nearly 19 million books, 2.6 million recordings, 12 million photographs, 4.8 million maps, and 56 million manuscripts.