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Vacuum - wikipedia, Vacuum is space void of matter. the word stems from the latin adjective vacuus for "vacant" or "void". an approximation to such vacuum is a region with a gaseous.

Hearing - wikipedia, Hearing, auditory perception, or audition is the ability to perceive sound by detecting vibrations, changes in the pressure of the surrounding medium through time.

Electropaedia history of science and technology, The inspiration - there's more to batteries than you might think. background. we think of a battery today as a source of portable power, but it is no exaggeration to.

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Tectonic theater project, What is tectonic? tectonic refers to the art and science of structure and was chosen to emphasize the company’s interest in construction– how things are made, and.

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