Word: prism
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Breaks on a prism of dissolving clay
...Prism Exhausts. Menzel does not claim to explain the exact air conditions that produce each flying saucer. The original light may come from almost any bright source, and it may follow all sorts of complicated paths, with different results each time. Sometimes the reported saucers have "glowing exhausts." Menzel believes that these "exhausts" are related to the colors seen through a prism. The conspicuous red, always seen at one end of the image, looks like a jet of red flame...
...holding a prism to his eye, he would first shatter the space, then load its fragments with color and re-order them into a design. "A boat moving in the atmosphere," says he, "sets up stresses and movements in the air. That is what I visualize, and the pattern and organization of those stresses...
...first phase of a five-year project to determine the structure of the Milky Way, Bok has been supervising observations at Harvard's Boyden station in Bloemfontein, Orange Free State. Operations included the installation last month of the world's largest objective prism for photographing stellar spectra...
...inch Palomar telescope was built primarily for studying more distant nebulae. It can photograph them as faint blurs at distances something like one billion lightyears, but getting their spectra is more difficult. The light from the nebula is concentrated by the telescope's great mirror upon a prism, which spreads it into a spectrum one-tenth of an inch long. So dim is the image on the photographic plate that four to six hours of exposure are needed to make the picture...