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>For other uses, see Light (disambiguation). Light is electromagnetic radiation with a wavelength that is visible to the eye (visible light) or, in a technical or scientific setting, electromagnetic radiation of any wavelength. The three basic dimensions of light (i.e., all electromagnetic radiation) are:intensity (or brilliance or amplitude), which is related to the human perception of brightness of the light,frequency (or wavelength), perceived by humans as the color of the light, andpolarization (or angle of vibration), which is not perceptible by humans under ordinary circumstances. Due to wave-particle duality, light simultaneously exhibits properties of both waves and particles. The precise nature of light is one of the key questions of modern physics. See more at Wikipedia.org...

were a Sydney, Australia-based indie rock band. They formed around 1990, released three albums: their debut Aurora (around 1991), which was mostly rock with some shoegazer elements (such as extensive use of guitar fuzz and reverb on vocals). Their next album, 1994's The Last Unicorn went further into shoegazing territory, with layered, feedback-washed guitar solos and ambient instrumental tracks between songs; it also featured a guest performance by Lara Goodridge, later of the FourPlay String Quartet, on violin. In subsequent years, Swirl released a few EPs and played live in Sydney, Melbourne and other Australian cities. See more at Wikipedia.org...

[ is an abstract, universal idea, notion, or entity that serves to designate a category or class of entities, events, or relations. Concepts are abstract in that they omit the differences of the things in their extension, treating them as if they were identical. They are universal in that they apply equally to every thing in their extension. Concepts are also the basic elements of propositions, much the same way a word is the basic semantic element of a sentence. See more at Wikipedia.org...]