Jiuquan luminous cup is a precious jade drinking vessel. When you put wine in a cup and put it in the moonlight, it will glow, hence the name luminous cup.
As one of the specialties of Jiuquan, Gansu Province, China, Jiuquan jade can be divided into jet, jasper and topaz by color, which can be used to make luminous cups. The pattern of the luminous cup is naturally formed, black as paint, green as emerald, and white as fat. It has the advantages of high temperature resistance and low temperature resistance. Pour hot wine, cold wine will not explode.
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The luminous effect of luminous cup is probably caused by special manufacturing technology and technical treatment. At the same time, it is also related to the special environment and drinking style. Ancient people often drank in the moonlight at night. The luminous cup is beautifully carved, the wall is as thin as paper, and the transparency is high. Put the wine in a cup and put it in the moonlight, and the cup will shine. This is a sparkling scene.
It is likely to be regarded as "luminous" by the ancients. And lift a glass to the sky, the moonlight can penetrate and reflect the moon shadow in the glass. Especially when the wine is warm and the eyes are dim, when the wine glass is shaken by "asking for wine from heaven" or "until I raise my glass and ask for the bright moon", the moon shadow will flash with the wine glass and produce a luminous effect.
Baidu encyclopedia-Jiuquan luminous cup