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ordinary air pump with its valves reversed, he found the box was airtight, so he pulled out all the air, watching the cylinder intently while doing so. Nothing happened for many strokes of the pump except that it made his back lame to pull the pump handle upward while he created the most "powerful"…

BIOGRAPHYNIKOLATESLA1994BrotherhoodLifeDartmouthAlbuquerqueMexico87106
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