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2 天前 · The Spice Girls (here in 2008) are the best-selling girl group in history. A girl group is a popular music act featuring several female singers who generally harmonize together. Girl groups have been popular at least since the heyday of the Boswell Sisters beginning in the 1930s, but the term "girl group" also denotes the wave of American female pop singing groups who flourished in the late ...
1 天前 · Definition The Fourier transform is an analysis process, decomposing a complex-valued function () into its constituent frequencies and their amplitudes. The inverse process is synthesis, which recreates () from its transform.We can start with an analogy, the Fourier series, which analyzes () on a bounded interval [/, /], for some positive real number .
1 天前 · An M.2 (2242) solid-state-drive ( SSD) connected into USB 3.0 adapter and connected to computer. The USB mass storage device class (MSC or UMS) standardizes connections to storage devices. At first intended for magnetic and optical drives, it has been extended to support flash drives and SD card readers.
1 天前 · Sonic the Hedgehog [a] is a video game series and media franchise created by the Japanese developers Yuji Naka, Naoto Ohshima, and Hirokazu Yasuhara for Sega. The franchise follows Sonic, an anthropomorphic blue hedgehog who battles the evil Doctor Eggman, a mad scientist. The main Sonic the Hedgehog games are platformers mostly developed by ...
1 天前 · Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the formula N H 3.A stable binary hydride and the simplest pnictogen hydride, ammonia is a colourless gas with a distinctive pungent smell. Biologically, it is a common nitrogenous waste, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to fertilisers.
2 天前 · World War II or the Second World War (1 September 1939 – 2 September 1945) was a global conflict between two alliances: the Allies and the Axis powers. Nearly all of the world's countries, including all of the great powers, participated in the conflict, and many invested all available economic, industrial, and scientific capabilities in pursuit of total war, blurring the distinction between ...
1 天前 · The Caribbean (/ ˌ k ær ɪ ˈ b iː ən, k ə ˈ r ɪ b i ən / KARR-ih-BEE-ən, kə-RIB-ee-ən, locally / ˈ k ær ɪ b iː æ n / KARR-ih-bee-an; Spanish: el Caribe; French: les Caraïbes; Dutch: de Caraïben) is a subregion of the Americas that includes the Caribbean Sea and its islands, some of which are surrounded by the Caribbean Sea and some of which border both the Caribbean Sea and ...
