Optics. Refraction

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But Newton with the particles easily could receive double refraction by various ways. Particles could to be, for example, anisotropic, like magnets and then the crystal could sort them concerning their orientation and refract differently. Speaking to Newton's words, ' each ray of light has, hence, two opposite sides allocated with a certain property on which unusual refraction, and two other parties which are not possessing this property ' depends.

By analogy to a magnet it is possible to tell that njutonovskie corpuscles have been polarised; this representation has remained, though Newton's idea during long time were not in a course. Neither Newton, nor Gjujgens did not think that light could represent cross-section fluctuations.

However there is even more simple phenomenon which Newton's hypothesis cannot explain, - simultaneous reflexion and refraction of light by a glass surface. Newton has put forward rather foggy idea about easy reflexion and easy refraction: he has assumed that the beam consisting of a set of corpuscles, can be able during certain time when it is easily reflected, and then - in such when it easily refracts, etc. By means of the phenomena of an interference Newton could estimate distance between these conditions which has appeared equal 1/89000 of inch for red light. It makes 2,7-JU-5 sm - not too far from half of length of a wave of red light as we know now.