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Quick Charge is a proprietary technology that can charge battery-powered devices, primarily mobile phones, at power levels exceeding the 7.5 watts (5 volts at 1.5 amps) supported by the USB BC 1.2 standard, using existing USB cables. The higher voltage available allows more power (watts) to be supplied through wires without excessive heating.
Federal Reserve Bank of Chicago The Chicago Board of Trade Building. Chicago has the third-largest gross metropolitan product in the United States—about $670.5 billion according to September 2017 estimates. [203] The city has also been rated as having the most balanced economy in the United States, due to its high level of diversification. [204]
The power generated by a power station is measured in multiples of the watt, typically megawatts (10 6 watts) or gigawatts (10 9 watts). Power stations vary greatly in capacity depending on the type of power plant and on historical, geographical and economic factors. The following examples offer a sense of the scale.
Hoover Dam's initial 1,345 MW power station was the world's largest hydroelectric power station in 1936; it was eclipsed by the 6,809 MW Grand Coulee Dam in 1942. [20] The Itaipu Dam opened in 1984 in South America as the largest, producing 14 GW , but was surpassed in 2008 by the Three Gorges Dam in China at 22.5 GW .
Miami, [b] officially the City of Miami, is a coastal city in the U.S. state of Florida and the county seat of Miami-Dade County in South Florida.It is the core of the Miami metropolitan area, which, with a population of 6.14 million, is the second-largest metropolitan area in the Southeast after Atlanta, and the ninth-largest in the United States. [9]
Dubai [a] is the most populous city in the United Arab Emirates and the capital of the Emirate of Dubai, the most populous of the country's seven emirates. [5] [6] [7] As of 2024, the city has a population of around 3.79 million, [8] more than 90% of which are expatriates.