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Alcides Moreno — is a window washer who survived a fall of forty seven stories.On the morning of December 72007, the window washer s platform he and his brother Edgar were working on fell without warning from the 47th floor of an apartment building on 66th Street … Wikipedia
Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… … Wikipedia
Plumb-bob — A plumb bob or a plummet is a weight with a pointed tip on the bottom that is suspended from a string and used as a vertical reference line.This instrument has been used since the time of the ancient Egyptians by bricklayers, masons, and… … Wikipedia

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