Traditional Culture Encyclopedia - The 24 Solar Terms - What is the astronomical instrument invented by ancient scientists to measure the length of the sun shadow?
What is the astronomical instrument invented by ancient scientists to measure the length of the sun shadow?
Guibiao pinyin: guο? Biot.
The standard watch is an astronomical instrument invented by ancient Han scientists to measure the length of the sun shadow, which consists of two parts: the standard watch and the watch. Like the sundial, the sundial is an ancient astronomical instrument, which uses the shadow of the sun to measure. As early as the 20th century BC, during the period of Taosi ruins, China began to use it. It is said that the sundial was developed on its basis.
The standard table is to determine the length of the noon shadow to determine the solar terms and the tropic year or solar calendar year. For a long historical period, the accuracy of the tropical year determined by China ranks first in the world. Through further research and calculation, ancient Han scholars also mastered the length of the sun shadow in the standard table of 24 solar terms.
The standard table can be used not only to formulate festivals, but also to exclude the dates of the future solar calendar year and the twenty-four solar terms from the almanac, as an important basis for guiding the agricultural activities of the working people of the Han nationality.
Guibiao pinyin: guο? Biot.
The standard watch is an astronomical instrument invented by ancient Han scientists to measure the length of the sun shadow, which consists of two parts: the standard watch and the watch. Like the sundial, the sundial is an ancient astronomical instrument, which uses the shadow of the sun to measure. As early as the 20th century BC, during the period of Taosi ruins, China began to use it. It is said that the sundial was developed on its basis.
The standard table is to determine the length of the noon shadow to determine the solar terms and the tropic year or solar calendar year. In a long historical period, the accuracy of the tropical year determined by China ranks first in the world. Through further research and calculation, ancient Han scholars also mastered the length of the sun shadow in the standard table of 24 solar terms.
The standard table can be used not only to formulate festivals, but also to exclude the dates of the future solar calendar year and the twenty-four solar terms from the almanac, as an important basis for guiding the agricultural activities of the working people of the Han nationality.
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