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Geography (from Greek: γεωγραφία, geographia, literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, and phenomena of Earth. The recorded use of the word γεωγραφία was as a title of a book by Greek scholar Eratosthenes (276–194 BC). Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be. While geography is specific to Earth, many concepts can be applied more broadly to other celestial bodies in the field of planetary science.
The four historical traditions in geographical research are spatial analyses of the natural and the human phenomena, area studies of places and regions, studies of human-land relationships, and the Earth sciences. Geography has been called "the world discipline" and "the bridge between the human and the physical sciences".
Geography is often defined in terms of three branches: human geography, physical geography, and technical geography. Human geography is concerned with studying people and their communities, cultures, economies, and interactions with the environment by studying their relations with and across space and place. Physical geography is concerned with the study of processes and patterns in the natural environment like the atmosphere, hydrosphere, biosphere, and geosphere. Technical geography is interested in studying and applying techniques and methods to store, process, analyze, visualize, and use spatial data. These branches use similar geographic philosophies, concepts, and tools and often overlap significantly. One such concept, the first law of geography, proposed by Waldo Tobler, is "everything is related to everything else, but near things are more related than distant things." (Full article...)
In this month
- 24 September 1994 – Death of Barry Chapman Bishop, an American mountaineer, scientist, photographer and scholar
- 27 September 1858 – Incorporation as a municipality of Jarabacoa (pictured), La Vega Province, Dominican Republic
- 29 September 2011 – Original broadcast of "Geography of Global Conflict", second episode of third season of the American television series Community
- 29 September 2012 – Death of Neil R. Smith, a Scottish geographer and academic
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Tectonic Plate, Greenland is included as a part of North America geographically. (Full article...)
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David Alexander Johnston (December 18, 1949 – May 18, 1980) was an American United States Geological Survey (USGS) volcanologist who was killed by the 1980 eruption of Mount St. Helens in the U.S. state of Washington. A principal scientist on the USGS monitoring team, Johnston was killed in the eruption while manning an observation post six miles (10 km) away on the morning of May 18, 1980. He was the first to report the eruption, transmitting "Vancouver! Vancouver! This is it!" before he was swept away by a lateral blast; despite a thorough search, Johnston's body was never found, but state highway workers discovered remnants of his USGS trailer in 1993.
Johnston's career took him across the United States, where he studied the Augustine Volcano in Alaska, the San Juan volcanic field in Colorado, and long-extinct volcanoes in Michigan. Johnston was a meticulous and talented scientist, known for his analyses of volcanic gases and their relationship to eruptions. This, along with his enthusiasm and positive attitude, made him liked and respected by many co-workers. After his death, other scientists lauded his character, both verbally and in dedications and letters. Johnston felt scientists must do what is necessary, including taking risks, to help protect the public from natural disasters. His work, and that of fellow USGS scientists, convinced authorities to close Mount St. Helens to the public before the 1980 eruption. They maintained the closure despite heavy pressure to re-open the area; their work saved thousands of lives. His story became intertwined with the popular image of volcanic eruptions and their threat to society, and a part of volcanology's history. To date, Johnston, along with Harry Glicken, is one of two American volcanologists known to have died in a volcanic eruption. (Full article...)Did you know
- ... that Johann Reinhold Forster's 1778 book Observations Made During a Voyage Round the World has been described as "the beginning of modern geography"?
- ... that the first known paravian dinosaurs were from China, but they now live on every continent?
- ... that although Constance Kies was a nutrition scientist, she majored in English, and minored in history, geography, library science, and home economics?
- ... that during the collision of India with Asia, the southern part of the Tibetan Plateau achieved its high elevation before the northern part?
- ... that glaciation in Wisconsin 17 thousand years ago helped create its unique geography?
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