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3 天前 · Nikola Tesla ( / ˈtɛslə /; [2] Serbian Cyrillic: Никола Тесла, [nǐkola têsla]; 10 July [ O.S. 28 June] 1856 – 7 January 1943) was a Serbian-American [3] [4] inventor, electrical engineer, mechanical engineer, and futurist. He is known for his contributions to the design of the modern alternating current (AC) electricity supply ...
3 天前 · Geologic time scale. The geologic time scale, proportionally represented as a log-spiral with some major events in Earth's history. A megaannus (Ma) represents one million (10 6) years. The geologic time scale or geological time scale ( GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating ...
3 天前 · Love encompasses a range of strong and positive emotional and mental states, from the most sublime virtue or good habit, the deepest interpersonal affection, to the simplest pleasure. [1] An example of this range of meanings is that the love of a mother differs from the love of a spouse, which differs from the love for food.
3 天前 · Toronto is the most populous city in Canada and the capital city of the Canadian province of Ontario.With a population of 2,794,356 in 2021, it is the fourth-most populous city in North America.The city is the anchor of the Golden Horseshoe, an urban agglomeration of 9,765,188 people (as of 2021) surrounding the western end of Lake Ontario, while the Greater Toronto Area proper had a 2021 ...
1 天前 · Laplace transform. In mathematics, the Laplace transform, named after Pierre-Simon Laplace ( / ləˈplɑːs / ), is an integral transform that converts a function of a real variable (usually , in the time domain) to a function of a complex variable (in the complex-valued frequency domain, also known as s-domain, or s-plane ).
2 天前 · José Mário dos Santos Mourinho Félix GOIH (European Portuguese: [ʒuˈzɛ moˈɾiɲu] ; born 26 January 1963), is a Portuguese professional football manager and former player who was most recently head coach of Italian Serie A club Roma.Dubbed "The Special One" by the British media, Mourinho is one of the most decorated managers ever and is widely considered to be among the greatest ...
5 天前 · Plate tectonics (from Latin tectonicus, from Ancient Greek τεκτονικός (tektonikós) 'pertaining to building')[1] is the scientific theory that Earth's lithosphere comprises a number of large tectonic plates, which have been slowly moving since about 3.4 billion years ago.[2] The model builds on the concept of continental drift, an ...
