McKinsey & Company analyzed energy use by data centers and found that, on average, they were using only 6 percent to 12 percent of the electricity powering their servers to perform computations. The rest was essentially used to keep servers idling and ready in case of a surge in activity that could slow or crash their operations.
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Data Centers Waste Vast Amounts of Energy, Belying Industry Image - NYTimes.com - 1 views
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To guard against a power failure, they further rely on banks of generators that emit diesel exhaust.
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Even running electricity at full throttle has not been enough to satisfy the industry. In addition to generators, most large data centers contain banks of huge, spinning flywheels or thousands of lead-acid batteries — many of them similar to automobile batteries
Technology - 3 views
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accelerometers
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An accelerometer is an electromechanical device that will measure acceleration forces.
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gyroscopes
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A device to provide stability or measuring/maintaining orientation. -
consists of a spinning mass(a disk or wheel), mounted on a base so that its axis can turn freely in one or more rotations.
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torque sensor
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A transducer that converts mechanical energy into electrical energy. It works by turning a metal shaft inside/protuding from the sensor. When the metal shaft is turned, the metal ring around it will apply a magnetic current.
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