刘洪

劉洪

Liú Hóng

proper noun

Meanings

1 Liu Hong, Eastern Han astronomer and mathematician, creator of the Qianxiang Calendar (乾象历)

About Liu Hong

c. 129–210 · 科学家 scientist

Astronomer of the Eastern Han whose 乾象历 calendar was the first to allow for the Moon's changing speed. Later tradition also links him to the invention of the abacus.

Also called 算圣

Characters

Examples

HSK 6

刘洪是东汉著名的天文学家。

Liú Hóng shì Dōnghàn zhùmíng de tiānwénxuéjiā.

Liu Hong was a famous Eastern Han astronomer.

HSK 6

刘洪制定的《乾象历》第一次考虑了月球运动速度的变化。

Liú Hóng zhìdìng de 《 Qiánxiànglì 》 dìyī cì kǎolǜ le yuèqiú yùndòng sùdù de biànhuà.

Liu Hong's Qianxiang Calendar was the first to take changes in the moon's speed into account.

Tips

history

His title 算圣, 'sage of calculation', uses the 圣 that crowns the master of a field: 杜甫 is the 诗圣 of poetry and 王羲之 the 书圣 of calligraphy. The state of Wu kept his calendar until 280.

Stroke Order

刘 Liú

洪 hóng

刘洪