or a stretched wire
61Piano acoustics — are those physical properties of the piano which affect its acoustics.tring length and thicknessThe strings of a piano vary in thickness, with bass strings thicker than treble. A typical range is from 1/30 inch for the highest treble strings to… …
62stretch — {{Roman}}I.{{/Roman}} noun 1 area of land or water ADJECTIVE ▪ great, huge, large, long, open, vast, wide ▪ A great stretch of ocean lay beneath them …
63Boeing 777 — Infobox Aircraft subtemplate=Infobox Boeing Aircraft name =Boeing 777 caption =Boeing 777 200 of United Airlines, the launch customer of the 777 type =Wide body jet airliner national origin = United States manufacturer =Boeing Commercial… …
64Window screen — A window screen, insect screen or bug screen is a metal wire, fiberglass, or other synthetic fiber mesh, stretched in a frame of wood or metal, designed to cover the opening of an open window. Its primary purpose is to keep leaves, debris,… …
65commercial fishing — Introduction the taking of fish and other seafood and resources from oceans, rivers, and lakes for the purpose of marketing them. Fishing is one of the oldest employments of humankind. Ancient heaps of discarded mollusk shells (shell… …
66Germany — /jerr meuh nee/, n. a republic in central Europe: after World War II divided into four zones, British, French, U.S., and Soviet, and in 1949 into East Germany and West Germany; East and West Germany were reunited in 1990. 84,068,216; 137,852 sq.… …
67percussion instrument — a musical instrument, as the drum, cymbal, triangle, xylophone, or piano, that is struck to produce a sound, as distinguished from string or wind instruments. [1870 75] * * * A musical instrument that is struck (or sometimes shaken or scraped) to …
68stretch — I. verb Etymology: Middle English strecchen, from Old English streccan; akin to Old High German strecchan to stretch, Old English stræc firm, severe Date: before 12th century transitive verb 1. to extend (as one s limbs or body) in a reclining… …
69Circuit breaker — For other uses, see Circuit breaker (disambiguation). An air circuit breaker for low voltage (less than 1000 volts) power distribution switchgear …
70fluid mechanics — an applied science dealing with the basic principles of gaseous and liquid matter. Cf. fluid dynamics. [1940 45] * * * Study of the effects of forces and energy on liquids and gases. One branch of the field, hydrostatics, deals with fluids at… …
