picture unsteadiness

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• Maria Callas — Callas redirects here. For other uses, see Callas (disambiguation). Maria Callas Maria Callas (Greek: Μαρία Κάλλας) (December 2, 1923 – September 16, 1977) was an American born Greek soprano and one of the most renowned opera singers of the… …   Wikipedia

• History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …   Wikipedia

• nebula — nebular, adj. /neb yeuh leuh/, n., pl. nebulae / lee , luy /, nebulas. 1. Astron. a. Also called diffuse nebula. a cloud of interstellar gas and dust. Cf. dark nebula, emission nebula, reflection nebula …   Universalium

• syndrome — The aggregate of symptoms and signs associated with any morbid process, and constituting together the picture of the disease. SEE ALSO: disease. [G. s., a running together, tumultuous concourse; (in med.) a concurrence of symptoms, fr. syn,… …   Medical dictionary

• Atmospheric reentry — refers to the movement of human made or natural objects as they enter the atmosphere of a planet from outer space, in the case of Earth from an altitude above the edge of space. This article primarily addresses the process of controlled reentry… …   Wikipedia

• Normal pressure hydrocephalus — Classification and external resources ICD 10 G91.2 ICD 9 331.9 …   Wikipedia

• Vestibular neuronitis — DiseaseDisorder infobox Name = Vestibular neuronitis ICD10 = ICD10|H|81|2|h|80 ICD9 = ICD9|386.12 Vestibular Neuronitis, also called Vestibular neuritis , can be a paroxysmal, single attack of vertigo, a series of attacks, or a persistent… …   Wikipedia

• Sign — Any abnormality that indicates a disease process, such as a change in appearance, sensation, or function, that is observed by a physician when evaluating a patient. * * * 1. Any abnormality indicative of disease, discoverable on examination of… …   Medical dictionary