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Georg Wilhelm Steller (10 March 1709 – 14 November 1746) was a German-born naturalist and explorer who contributed to the fields of biology, zoology, and ethnography.He participated in the Great Northern Expedition (1733–1743) and his observations of the natural world helped the exploration and documentation of the flora and fauna of the North Pacific region.
Act to Incorporate the Massachusetts Institute of Technology, Acts of 1861, Chapter 183 Stereographic card showing an MIT mechanical drafting studio, 19th century (photo by E. L. Allen, left/right inverted) Original Rogers Building, Back Bay, Boston, c. 1901 In 1859, a proposal was submitted to the Massachusetts General Court to use newly filled lands in Back Bay, Boston for a "Conservatory of ...
In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffraction grating into a spectrum exhibiting the rainbow of colors interspersed with spectral lines. Each line indicates a particular chemical element ...
A scientific theory is an explanation of an aspect of the natural world and universe that can be (or a fortiori, that has been) repeatedly tested and corroborated in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results.
Moore's law is a principle stating that the number of transistors on integrated circuits doubles approximately every two years.
Symbols for the Sun and Moon The use of astronomical symbols for the Sun and Moon dates to antiquity. The forms of the symbols that appear in the original papyrus texts of Greek horoscopes are a circle with one ray for the Sun and a crescent for the Moon. The modern Sun symbol, a circle with a dot (☉), first appeared in Europe in the Renaissance. The symbol for the Sun in late Classical (4th ...
Stellar archaeology is the study of the early history of the universe, based on its early composition. [1] By examining the chemical abundances of the earliest stars in the universe: metal-poor, Population II stars; insights are gained into their earlier, metal-free, Population III progenitors. This sheds light on such processes as galaxy ...
Williamina Paton Stevens Fleming (15 May 1857 – 21 May 1911) was a Scottish astronomer. She was a single mother hired by the director of the Harvard College Observatory to help in the photographic classification of stellar spectra.
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