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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 ...
Taiwan. / 25.067°N 121.517°E / 25.067; 121.517. Taiwan, [II] [k] officially the Republic of China ( ROC ), [I] [l] is a partially recognized state [27] [28] in East Asia. [o] It is located at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest ...
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.
United States dollar. The United States dollar ( symbol: $; currency code: USD; also abbreviated US$ to distinguish it from other dollar-denominated currencies; referred to as the dollar, U.S. dollar, American dollar, or colloquially buck) is the official currency of the United States and several other countries.
USD /JPY exchange rate 1971–2023. The yen ( Japanese: 円, symbol: ¥; code: JPY) is the official currency of Japan. It is the third-most traded currency in the foreign exchange market, after the United States dollar and the euro. [2] It is also widely used as a third reserve currency after the US dollar and the euro.
History (derived from Ancient Greek ἱστορία (historía) 'inquiry; knowledge acquired by investigation') [1] is the systematic study and documentation of the human past. [2] [3] The period of events before the invention of writing systems is considered prehistory. [4] ". History" is an umbrella term comprising past events as well as the ...
Florence, birthplace of the Italian Renaissance.The architectural perspective and new systems of banking and accounting were introduced during the time. The Renaissance (UK: / r ə ˈ n eɪ s ən s / rən-AY-sənss, US: / ˈ r ɛ n ə s ɑː n s / REN-ə-sahnss) is a period of history and a cultural movement in Europe covering the 15th and 16th centuries.
