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Measurement of wow and flutter is carried out on audio tape machines, cassette recorders and players, and other analog recording and reproduction devices with rotary components (e.g. movie projectors, turntables (vinyl recording), etc.) This measurement quantifies the amount of 'frequency wobble' (caused by speed fluctuations) present in ...
Topographer's rods are special purpose rods used in topographical surveys. The rod has the zero mark at mid-height and the graduations increase in both directions away from the mid-height. In use, the rod is adjusted so that the zero point is level with the instrument (or the surveyor's eye if he is using a hand level for low-resolution work).
A ranging rod, or range rod, is a surveying instrument used for marking the position of stations, and for sightings of those stations, as well as for ranging straight lines. [1] Initially these were made of light, thin, and straight bamboo , or of well seasoned wood such as teak , pine , or deodar .
A plumb bob. A plumb bob, plumb bob level, or plummet, is a weight, usually with a pointed tip on the bottom, suspended from a string and used as a vertical direction as a reference line, or plumb-line.
A Y-shaped twig or rod, or two L-shaped ones, called dowsing rods or divining rods are normally used, and the motion of these are said to reveal the location of the target material. The motion of such dowsing devices is generally attributed to random movement, or to the ideomotor phenomenon , [ 7 ] [ 8 ] [ 9 ] a psychological response where a ...
A 19th-century drawing of Sun Wukong featuring his staff. Ruyi Jingu Bang (Chinese: 如意金箍棒; pinyin: Rúyì Jīngū Bàng; Wade–Giles: Ju 2-yi 4 Chin 1-ku 1-pang 4), or simply Ruyi Bang or Jingu Bang, is the poetic name of a magical staff wielded by the immortal monkey Sun Wukong in the 16th-century classic Chinese novel Journey to the West.
A connecting rod, also called a 'con rod', [1] [2] [3] is the part of a piston engine which connects the piston to the crankshaft. Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the crankshaft. [4] The connecting rod is required to transmit the compressive and tensile forces from ...
Mithril is a fictional metal found in J. R. R. Tolkien's Middle-earth writings. It is described as resembling silver, but being stronger and lighter than steel.It was used to make armour, such as the helmets of the citadel guard of Minas Tirith, and ithildin alloy, used to decorate gateways with writing visible only by starlight or moonlight.