منابع مشابه
Galactic Dust Clouds Are Shining in Scattered Hα Light
Bright emission nebulae, or HII regions, around hot stars are readily seen in Hα light. However, the all-pervasive faint Hα emission has only recently been detected and mapped over the whole sky. Mostly the Hα emission observed along a line of sight is produced by ionised gas in situ. There are, however, cases where all or most of the Hα radiation is due to scattering by electrons or dust parti...
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It may be in vogue as a car colour, but for millenia insects, birds and fishes have evolved the metallic look. Many insects, birds and fish display vivid metallic colours. But such a show is not the result of pigments, but the structured reflections of light hitting the surface of the organism. Although such reflections are widespread in contemporary species, no one has discovered evidence of s...
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—In aquatic environments, what one observes during the day can differ substantially by night. The species composition and associated ecological processes that occur during the day are often different than night. In polar seas and at great depths, “night” can span, months, years, and beyond. Teleosts and elasmobranchs have evolved unique sensory and behavioral modalities for living in darkness. ...
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The quantum internet of the future could take many forms, but its core components will be quantum bits (qubits) that can store information and qubits that can carry information [1, 2]. Atom-sized defects in diamond called silicon vacancy centers are promising candidates as the storage component: they possess a single spin whose quantum state (such as a superposition between “up” and “down”) cou...
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O ptogenetics is relatively new and has attracted much interest since the first publications from the field in the early 2000s. Both researchers and the media are fascinated by the notions it conjures of bionic implants. Notwithstanding potential applications, the technology has quickly become an important research tool in neuroscience with potential for developing a range of novel therapeutic ...
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ژورنال
عنوان ژورنال: Nature
سال: 1890
ISSN: 0028-0836,1476-4687
DOI: 10.1038/041369c0