In 1816, the Scottish physicist Sir David Brewster invented the kaleidoscope. Brewster is mainly engaged in optical and spectroscopy research. He liked optical experiments very much in his childhood, and spent most of his life in his favorite optics. Once, when he studied the nature of light with a multi-faceted mirror, he saw the scenes reflected by several reflections in several opposite mirrors, and put some paper in the cavity made up of mirrors. As a result, he saw Some symmetrical patterns, and the pattern changes once each time the position of the paper is changed.
In order to make the pattern change constantly, he placed the three-sided angled mirror in a cylinder and placed the paper between the two layers of glass at the end of the barrel. As the angle of the mirror in the triangular mirror changes, the number of images changes accordingly; after the images overlap, various patterns are formed, and the kaleidoscope is continuously rotated to see the constantly changing pattern. In this way he made a kaleidoscope that saw different patterns with a slight rotation. The kaleidoscope was unexpectedly successful overnight. This little thing that can produce a wonderful pattern can be regarded as the "television set" at that time. Once a pattern disappears, it takes centuries to turn the same combination.
According to the introduction of kaleidoscope production experts, there are many types of "core" parts. For example, by combining two windmill-shaped wheels, forming a variety of patterns by rotating the wheels, or attaching a glass ball to the front end and rotating it to see any kind of scenery around you, you can get an unprecedented Fresh composition. The front end portion is filled with a combination of oils of various colors and produces an incredible pattern by the flow of oil.
"Shape" mainly refers to the structure of the kaleidoscope. It has two structures: three mirrors, three mirrors, four mirrors, cones, and rotation. Let us see the scene, not only the sweetness of the circle, but also the transformation of the polygon. There is a fireworks-like charm.
Chinese kaleidoscope
About a hundred years ago, a kaleidoscope invented by the British entered China. Due to the limitations of materials and craftsmanship at the time, the kaleidoscope could only be used as a private collection for the Qing Dynasty. With the break-up of the feudal dynasty's closed-door policy and the development of China's national industry, the cost of the kaleidoscope has gradually become cheaper. In the old days, Wang Xietang Qianyan also flew into the homes of ordinary people.
People like to watch kaleidoscopes and prefer to make kaleidoscopes. At the Dongyue Temple Folklore Games in Beijing, there was a kaleidoscope of about 90 cm long and 10 cm in diameter, made by amateurs using waste paper tubes. At present, the Beijing Folk Museum also houses a large kaleidoscope of 132 cm in length and 25 cm in diameter made by Mr. Li Hongkuan, executive director of the Beijing Toy Association and a kaleidoscope enthusiast.
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