Every dynasty has a solar eclipse;
The time people study solar eclipses and the time they observe solar eclipses are related to the level of scientific and technological development;
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Solar eclipse, also called solar eclipse, is when the moon moves between the sun and the earth. If the three are in a straight line, the moon will block the sun's light from the earth, and the black shadow behind the moon will fall. On the earth, a solar eclipse occurs at this time.
In folklore, this phenomenon is called the Tengu Sun Eclipse. A solar eclipse only occurs during the new moon, when the moon and sun are in conjunction. Solar eclipses are divided into partial solar eclipses, total solar eclipses, annular solar eclipses, and total annular eclipses. Do not look directly at the sun when observing a solar eclipse, otherwise it may cause temporary blindness, or even permanent blindness in severe cases.
The earliest solar eclipse: On May 26, 1217 BC, people living in Anyang, Henan Province, my country were engaged in various normal activities, but something amazing happened. People looked up at the sky. The previously radiant sun suddenly had a gap and the light dimmed. However, after missing a large part, it began to recover again. This is the earliest record of a solar eclipse in human history. It is carved in oracle bones on a piece of tortoise shell. The observation of solar eclipses in ancient my country maintained record continuity. For example, the chronicle "Spring and Autumn" records 37 solar eclipses in 244 years from 722 BC to 479 BC. Records of solar eclipses began in the 3rd century and have continued into modern times for nearly 2,000 years.
The longest solar eclipse: The longest duration of a solar eclipse (the moon is between the sun and the earth) is 7 minutes and 31 seconds. The 1955 solar eclipse in West Philadelphia lasted 7 minutes and 8 seconds, the longest in recent history. It is predicted that a solar eclipse lasting 7 minutes and 29 seconds will occur in the mid-Atlantic region in 2186. A mother and child are photographed during a 1995 solar eclipse in Bangkok, Thailand, which was total in some parts of the country. The longest duration of a lunar eclipse (the Moon's movement into the Earth's shadow) is 1 hour and 47 minutes. On July 16, 2000, people saw this scene on the west coast of North America.
The longest annular solar eclipse: The longest annular solar eclipse of the 21st century was the solar eclipse on January 15, 2010, which lasted 11 minutes and 8 seconds. The longest theoretical annular solar eclipse lasts 12 minutes and 29 seconds.
Two solar eclipses will occur in Tianyu in 2016. The two solar eclipses are the total solar eclipse on March 9 and the annular solar eclipse on September 1. On August 22, 2017, Beijing time, a total solar eclipse will sweep across the entire United States.