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A toy kaleidoscope. A kaleidoscope (/ k ə ˈ l aɪ d ə s k oʊ p /) is an optical instrument with two or more reflecting surfaces (or mirrors) tilted to each other at an angle, so that one or more (parts of) objects on one end of these mirrors are shown as a symmetrical pattern when viewed from the other end, due to repeated reflection.
The origin of language, its relationship with human evolution, and its consequences have been subjects of study for centuries.Scholars wishing to study the origins of language draw inferences from evidence such as the fossil record, archaeological evidence, contemporary language diversity, studies of language acquisition, and comparisons between human language and systems of animal ...
The highly diverse Nilo-Saharan languages, first proposed as a family by Joseph Greenberg in 1963 might have originated in the Upper Paleolithic. [1] Given the presence of a tripartite number system in modern Nilo-Saharan languages, linguist N.A. Blench inferred a noun classifier in the proto-language, distributed based on water courses in the Sahara during the "wet period" of the Neolithic ...
Linguistics is the scientific study of language, [1] involving analysis of language form, language meaning, and language in context. [2]Language use was first systematically documented in Mesopotamia, with extant lexical lists of the 3rd to the 2nd Millennia BCE, offering glossaries on Sumerian cuneiform usage and meaning, and phonetical vocabularies of foreign languages.
Geoffrey Sampson states that Egyptian hieroglyphs "came into existence a little after Sumerian script, and, probably [were], invented under the influence of the latter", [39] and that it is "probable that the general idea of expressing words of a language in writing was brought to Egypt from Sumerian Mesopotamia".
notes by Johann Flierl, Wilhelm Poland and Georg Schwarz, culminating in Walter Roth's The Structure of the Koko Yimidir Language in 1901. [207] [208] A list of 61 words recorded in 1770 by James Cook and Joseph Banks was the first written record of an Australian language. [209] 1891: Galela: grammatical sketch by M.J. van Baarda [210] 1893: Oromo
Patients who used sign language, and who suffered from a left-hemisphere lesion, showed the same disorders with their sign language as vocal patients did with their oral language. [71] Other researchers found that the same left-hemisphere brain regions were active during sign language as during the use of vocal or written language. [72]
A teleidoscope is a kind of kaleidoscope, with a lens and an open view, so it can be used to form kaleidoscopic patterns from objects outside the instrument, rather than from items installed as part of it. Invented by John Lyon Burnside III [1] and Harry Hay, the patent was filed in 1970 and granted in 1972. [2] A large teleidoscope in a public ...