Atmospheric optics wavelengths. A halo (ἅλως; also known as a nimbus, icebow or gloriole) is an optical phenomenon produced by the interaction of light from the sun or moon with ice crystals in the atmosphere, resulting in colored or white arcs, rings or spots in the sky. Many halos are positioned near the sun or moon, but others are elsewhere and even in the opposite part of the sky. They can also form around artificial lights in very cold weather when ice crystals called diamond dust are floating in the nearby air. There are many types of ice halos. They are produced
What Is Art? art. In short, new artists imitate the classics, setting their own feelings aside, which, according to Tolstoy, is contrary to the point of art. Art schools teach people how to imitate the method of the masters, but they cannot teach the sincerity of emotion that is the propellant of great works. In Tolstoy's words, "[n]o school can call up feelings in a man, and still less can it teach a man what is the essence of art: the manifestation of feeling in his own particular fashion". Throughout the book Tolstoy demonstrates a willingness to dismiss generally accepted masters, among them