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Alexis A. Julien
Alexis Anastay Julien (February 13, 1840 – May 7, 1919) was an American geologist who taught at Columbia University's School of Mines for many years. Biography Julien was born in New York City on February 13, 1840. He graduated from Union College in 1859, but continued as a student in the chemical laboratory a year longer. In 1860 he went to the guano island of Sombrero as resident chemist, and continued there until 1864, also making studies of its geology and natural history, especially of its birds and land shells. He sent his collections to the Smithsonian Institution, for which he also made meteorological observations, this island being the most southerly under its direction. In 1862 he made a geological survey of the islets around St. Bartholomew for the Swedish government, receiving in recognition of his services a gold medal from the king of Sweden. Soon after the establishment of the Columbia School of Mines he became the assistant in charge of the quantitative la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the List of United States cities by population density, most densely populated major city in the United States, and is more than twice as populous as second-place Los Angeles. New York City lies at the southern tip of New York (state), New York State, and constitutes the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the world by urban area, urban landmass. With over 20.1 million people in its metropolitan statistical area and 23.5 million in its combined statistical area as of 2020, New York is one of the world's most populous Megacity, megacities, and over 58 million people live within of the city. New York City is a global city, global Culture of New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biology
Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. For instance, all organisms are made up of cells that process hereditary information encoded in genes, which can be transmitted to future generations. Another major theme is evolution, which explains the unity and diversity of life. Energy processing is also important to life as it allows organisms to move, grow, and reproduce. Finally, all organisms are able to regulate their own internal environments. Biologists are able to study life at multiple levels of organization, from the molecular biology of a cell to the anatomy and physiology of plants and animals, and evolution of populations.Based on definition from: Hence, there are multiple subdisciplines within biology, each defined by the nature of their research questions and the tools that they use. Like other scientists, biologists use the sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
