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51ear, human — ▪ anatomy Introduction organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium). The human ear, like …
52heteropteran — ▪ insect order Introduction any member of the insect order Heteroptera, which comprises the so called true bugs. (Some authorities use the name Hemiptera; others consider both the heteropterans and the homopterans to be suborders of the… …
53keyboard instrument — ▪ music Introduction any musical instrument on which different notes can be sounded by pressing a series of keys, push buttons, or parallel levers. In nearly all cases in Western music the keys correspond to consecutive notes in the… …
54Longsword — For other uses, see Longsword (disambiguation). Longsword Swiss longsword, ca. 1500 (Morges museum) Type Sword …
55Millennium Park — For other uses, see Millennium Park (disambiguation). Millennium Park Millennium Park as seen from the north in 2005 …
56Insect wing — Original veins and wing posture of a dragonfly. Hoverflies hovering to mate …
57T. V. S. R. Appa Rao — T.V.S.R. Appa Rao is a scientist from India. He is an Emeritus Scientist with over 40 years of experience in Research Development in the areas of structural analysis design, testing, and failure investigations including those due to natural… …
58Glossary of botanical terms — Many of the terms used in Wikipedia glossaries (often most) are already defined and explained within Wikipedia itself. However, lists like the following indicate where new articles need to be written and are also useful for looking up and… …
59particle accelerator — accelerator (def. 7). [1945 50] * * * Device that accelerates a beam of fast moving, electrically charged atoms (ions) or subatomic particles. Accelerators are used to study the structure of atomic nuclei (see atom) and the nature of subatomic… …
60hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …
