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Early conceptions What is light? Is a particle material, such as, for example, a ball pool? Does a wavemoving in a medium like an ocean wave that moves in the water? Or was it, as the Greek philosophers thought, a visible manifestation of the fire? Fiat lux, et facta est lux (...) (BIBLE,AT Genesis 1:3) "Let there be light, and light was made. The light is perhaps the most remote physical phenomena of the cosmos and therefore of humanity. The issues related to their origin and nature have been the cause of many reflections. This so everyday on Earth, its existence is associated, in a way, the existence of all things in the universe, ie, comets, planets, stars, galaxies, etc.. Figure The fire: one of the four elements of Empedocles, which light would be part. Photo: Ezequiel Burkarter. In Western civilization, the Greeks have claimed to be the matter made up of particles and light conceived as part of one of the four elements (earth, water, air and fire). The light next to the heat, would be a manifestation of fire. This view was given by Empedocles around the fifth century BC and was admitted to the thirteenth century. For the Pythagorean school, the light originates in the eye, which achieves the objects and exits by returning to the eye and give therefore vision. Plato (fourth century BC), however, proposed an intermediate design where the rays were emitted, both the eye as bright objects, and the sense of sight was assigned to encounter rays. One of the proponents of this theory was Euclid, whose work The optical and Catadióptica, considered the oldest on this subject, it deals with the linear propagation of light, the existence of the 'visual ray' and equality of the angles of incidence and reflection in mirrors plans. (ROSMORDUC, 2003, p. 53)
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Rani koncepcije Što je svjetlo? Je čestica materijala, kao što su, primjerice, lopta bazen? Da li valkreće na neki način, poput morskog vala koji se miče u vodu? Ili je to, kako su grčki filozofi mislili, vidljiva manifestacija vatre? "Fiat lux, et facta est lux(...)"(Biblija, AT Postanka 01:03) "Neka bude svjetlost, i svjetlost je napravio." Svjetlo je možda najudaljenijim fizičke pojave svemira i stoga čovječanstva. Pitanja vezana za svog podrijetla i prirode su bili uzrok mnogim razmišljanjima. To tako svakodnevno na Zemlji, njegovo postojanje je povezana, na neki način, postojanje svih stvari u svemiru, odnosno, komete, planete, zvijezde, galaksije, itd.. Slika Požar: jedan od četiri elementa Empedoklu, koji bi svjetlo biti dio. Foto: Ezequiel Burkarter. U zapadnoj civilizaciji, Grci su tvrdili da je stvar sastavljena od čestica i svjetla koja su koncipirana kao dio jednog od četiri elemenata (zemlja, voda, zrak i vatra). Svjetlo pored topline, bi manifestacija požara. Ovaj pogled je dao Empedoklu oko petog stoljeća prije Krista, a primljen je u trinaestom stoljeću. Za Pitagorine škole, svjetlost nastaje u oku, koji će polučiti objekte i izlazi po povratku za oko i daju stoga viziju. Platon (četvrto stoljeće prije Krista), međutim, predložio srednji dizajn, gdje se zrake su se emitira, oba oka kao svijetle objekte, a osjet vida dodijeljena susreću zrake. Jedan od zagovornika ove teorije je Euclid, čiji je rad optički i Catadióptica, smatra najstarijih na ovoj temi, da se bavi linearnog sirenja svjetlosti, postojanje 'vizualne ray' i jednakosti kuteva učestalosti i odraz u zrcalima planovi.(ROSMORDUC, 2003, str. 53)