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1 天前 · Gold is a chemical element with the symbol Au (from the Latin word aurum) and the atomic number 79. In its pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactive chemical elements ...
2 天前 · China's was the only major world economy to experience GDP growth in 2020, when its GDP increased by 2.3%. [101] However, it posted one of its worst economic performances in decades because of COVID-19 in 2022. [102] In 2023, IMF predicted China to continue being one of the fastest growing major economies. [103]
- 1,411,750,000 (31 December 2022 est.)
2 天前 · BRICS is an intergovernmental organization comprising Brazil, Russia, India, China, South Africa, Iran, Egypt, Ethiopia, Saudi Arabia and the United Arab Emirates. Originally identified to highlight investment opportunities,[1] the grouping evolved into a cohesive geopolitical bloc, with their governments meeting annually at formal summits and ...
1 天前 · The golden ratio's negative −φ and reciprocal φ−1 are the two roots of the quadratic polynomial x2 + x − 1. The golden ratio is also an algebraic number and even an algebraic integer. It has minimal polynomial. This quadratic polynomial has two roots, and. The golden ratio is also closely related to the polynomial.
2 天前 · t. e. Stephen William Hawking, CH, CBE, FRS, FRSA (8 January 1942 – 14 March 2018) was an English theoretical physicist, cosmologist, and author who was director of research at the Centre for Theoretical Cosmology at the University of Cambridge. [6] [17] [18] Between 1979 and 2009, he was the Lucasian Professor of Mathematics at Cambridge ...
2 天前 · Theodore Anthony Nugent ( / ˈnuːdʒɪnt /; born December 13, 1948) is an American guitarist, singer, songwriter, and political activist. [1] [2] He goes by several nicknames, including Uncle Ted, The Nuge, and Motor City Madman. Nugent initially gained fame as the lead guitarist and occasional vocalist of The Amboy Dukes, a band formed in ...
4 天前 · High-Definition Multimedia Interface ( HDMI) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television, or digital audio device. [3]
