1/7/2024 0 Comments Optical phenomena![]() The ability of light to travel through space or through a vacuum.The separation of light into colors by a prism.Rayleigh scattering (Why the sky is blue, sunsets are red, and associated phenomena).Polarized light-related phenomena such as double refraction, or Haidinger's brush.Pleochroism gems or crystals, which seem "many-colored" A high intensity radiation beam traversing the atmosphere causes heat-up and breakdown of the air, changing its optical properties along the path, so that the.Fluorescence, also called luminescence or photoluminescence.Double refraction or birefringence of calcite and other minerals.Diffraction, the apparent bending and spreading of light waves when they meet an obstruction.Chatoyancy, cat's eye gems such as chrysoberyl cat's eye or aquamarine cat's eye.Baily's beads, grains of sunlight visible in total solar eclipses.Aventurescence, also called the Schiller effect, spangled gems such as aventurine quartz and sunstone.Aura, a phenomenon in which gas or dust surrounding an object luminesces or reflects light from the object.Asterism, star gems such as star sapphire or star ruby.One such occurrence was taken from Cerro Paranal. Green flash appears above the solar disc for a second or so. This demonstrates that space is curved, as the theory of relativity predicts. One famous observation is of the bending of light from a star by the Sun observed during a solar eclipse. Atmospheric optical phenomena are visual events that take place in Earths atmosphere as a consequence of light reflection, refraction, and diffraction by. Some are quite subtle and observable only by precise measurement using scientific instruments. There are many phenomena that result from either the particle or the wave nature of light. ![]() Also listed here are unexplained phenomena that could have an optical explanation and " optical illusions" for which optical explanations have been excluded. Optical phenomena include those arising from the optical properties of the atmosphere the rest of nature (other phenomena) of objects, whether natural or human-made (optical effects) and of our eyes (Entoptic phenomena).
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