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A model of a power unit, comprising turbine and generator, of the Sayano-Shushenskaya power plant. Turbines of the type used in this power plant have a very narrow working band at high efficiency regimes. If this band is exceeded the turbines begin to vibrate, caused by the pulsation of water flow and water strokes.
The 180MW Francis turbine-generator running at full speed was instantaneously stopped by a foreign body left in the penstock following maintenance.[7] The installation shifted about 2m within the base of the 180m high earth and rock fill gravity dam wall of the 3,906GL reservoir.
Souk Al-Manakh stock market crash: Aug 1982 Kuwait: Black Monday: 19 Oct 1987 USA: Infamous stock market crash that represented the greatest one-day percentage decline in U.S. stock market history, culminating in a bear market after a more than 20% plunge in the S&P 500 and Dow Jones Industrial Average. Among the primary causes of the chaos ...
The stock market has been on fire over the past couple of years, and many investors have watched their portfolios soar. ... the COVID-19 crash in 2020, and the most recent downturn throughout 2022 ...
The first six months of 2022 were the worst the stock market has had in more than 40 years, officially entering a bear market on June 13. Despite some recent bouncebacks, investors remain worried.
The 148-foot (45 m) tall concrete gravity dam was built by the Union Electric Company (now Ameren) to generate hydroelectric power at its Osage Powerplant. It is 2,543 feet (775 m) long, including a 520-foot (160 m) long spillway and a 511-foot (156 m) long power station. The facility with eight generators has a maximum capacity of 215 megawatts.
The Federal Reserve has expanded its balance sheet greatly through three quantitative easing periods since the financial crisis of 2007–2008.In September 2019, a spike in the overnight repo market interest rate caused the Federal Reserve to introduce a fourth round of quantitative easing; the balance sheet would expand parabolically following the stock market crash.
By Dirk Lammers SIOUX FALLS, S.D. (AP) -- A small airplane heading back to South Dakota after a Texas cattle sale crashed into a wind farm in foggy weather, killing the pilot and three passengers.