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Free-piston engine used as a gas generator to drive a turbine. A free-piston engine is a linear, 'crankless' internal combustion engine, in which the piston motion is not controlled by a crankshaft but determined by the interaction of forces from the combustion chamber gases, a rebound device (e.g., a piston in a closed cylinder) and a load device (e.g. a gas compressor or a linear alternator).
Nanogenerator. A nanogenerator is a compact device that converts mechanical or thermal energy into electricity, serving to harvest energy for small, wireless autonomous devices. It uses ambient energy sources like solar, wind, thermal differentials, and kinetic energy.
In computational complexity and optimization the no free lunch theorem is a result that states that for certain types of mathematical problems, the computational cost of finding a solution, averaged over all problems in the class, is the same for any solution method. The name alludes to the saying "no such thing as a free lunch", that is, no ...
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12" Quadruple Sector-less Wimshurst Machine (Bonetti Machine) An electrostatic generator, or electrostatic machine, is an electrical generator that produces static electricity, or electricity at high voltage and low continuous current. The knowledge of static electricity dates back to the earliest civilizations, but for millennia it remained ...
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As you wait for prescription drug costs to come down from the clouds, here's how you can save money on the medications you need. 1. Use a coupon program. If you don't have insurance, a ...
World B. Free (born Lloyd Bernard Free; December 9, 1953) [1] is an American former professional basketball player who played in the National Basketball Association (NBA) from 1975 to 1988. Free was known as the " Prince of Mid-Air ", " Brownsville Bomber ", and most often as " All-World ".