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2 天前 · Silicon Valley is a region in Northern California that is a global center for high technology and innovation. Located in the southern part of the San Francisco Bay Area, it corresponds roughly to the geographical area of the Santa Clara Valley.
6 天前 · Wi-Fi ( / ˈwaɪfaɪ /) [1] [a] is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves.
2 天前 · Polynesia is one of three major cultural areas of the Pacific Ocean islands, along with Melanesia and Micronesia. Subregions ( Melanesia, Micronesia, Polynesia, and Australasia ), as well as sovereign and dependent islands of Oceania. Polynesia is generally defined as the islands within the Polynesian Triangle.
2 天前 · Hong Kong [d] is a special administrative region of the People's Republic of China. With 7.4 million residents of various nationalities [e] in a 1,104-square-kilometre (426 sq mi) territory, Hong Kong is one of the most densely populated territories in the world. Hong Kong was established as a colony of the British Empire after the Qing dynasty ...
2 天前 · Copper is a chemical element; it has symbol Cu (from Latin cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a ...
2 天前 · South Dakota (/ d ə ˈ k oʊ t ə / də-KOH-tə; Sioux: Dakȟóta itókaga, pronounced [daˈkˣota iˈtokaga]) is a landlocked state in the North Central region of the United States.It is also part of the Great Plains.South Dakota is named after the Dakota Sioux tribe, which comprises a large portion of the population with nine reservations currently in the state and has historically ...
2 天前 · Ludwig van Beethoven [n 1] (baptised 17 December 1770 – 26 March 1827) was a German composer and pianist. He is one of the most revered figures in the history of Western music; his works rank among the most performed of the classical music repertoire and span the transition from the Classical period to the Romantic era in classical music.
