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Jia Xian
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Blaise Pascal first described his triangle for generating the coefficients of a binomial expansion in 1665. The Chinese version, however, is centuries older. It was included as an illustration in Zhu Shijie's Siyuan yujian (1303; “Precious Mirror of Four Elements”), where it was already called the “Old Method.”
Quizzes
Michael Faraday (L) English physicist and chemist (electromagnetism) and John Frederic Daniell (R) British chemist and meteorologist who invented the Daniell cell.
Faces of Science
Equations written on blackboard
Numbers and Mathematics
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy
Related Questions
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Galaxy clusters like Abell 2744 can act as a natural cosmic lens, magnifying light from more distant, background objects through gravity. NASA's James Webb Space Telescope may be able to detect light from the first stars in the universe if they are gravitationally lensed by such clusters. (astronomy, space exploration, galaxies)
How Fast Is the Universe Expanding?
Planet Earth and lunar moon from space
Where Did the Moon Come From?
solar eclipse, sun, moon, astronomy, space
How Do You Tell the Difference Between Total, Annular, Solar, and Lunar Eclipses?
Arrangement of the phases of the moon in total eclipse with Blood Moon
9 Celestial Omens
bunch of numbers
Unusual Counting Systems
Discover
Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,
Which Religion Is the Oldest?
Easter Procession of Maria Santisima del Sacromonte in Granada, Spain. This statue is known as Virgen de los Gitanos or The Virgin of the Gypsies.
What is Holy Week?
Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.
10 of the World’s Most Dangerous Fish
Hemp (Cannabis sativa).
9 Mind-Altering Plants
King Cobra snake in Malaysia. (reptile)
9 of the World’s Deadliest Snakes
Lusitania sinking, illustration from The War of the Nations (New York), December 31, 1919. World War I, WWI. This image is one of three on the page. (See source file for the other two.)
7 of the World’s Deadliest Shipwrecks
Illustration for Demystified "How Dangerous is Quicksand"
How Deadly Is Quicksand?

Jia Xian: Facts & Related Content

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Facts

Flourished c.1050 -
Notable Works “Huangdi jiuzhang suanfa xicao”

Photos

Blaise Pascal first described his triangle for generating the coefficients of a binomial expansion in 1665. The Chinese version, however, is centuries older. It was included as an illustration in Zhu Shijie's Siyuan yujian (1303; “Precious Mirror of Four Elements”), where it was already called the “Old Method.”
See All Images →
Li Ye
Chinese mathematician
Minggantu
Chinese astronomer and mathematician
Mei Wending
Chinese writer
Zhao Youqin
Chinese astronomer, mathematician, and Daoist
Li Rui
Chinese mathematician and astronomer
Mei Juecheng
Chinese mathematician and astronomer
Zu Geng
Chinese government official, mathematician, and astronomer
Li Chunfeng
Chinese mathematician and astronomer
Zu Chongzhi
Chinese astronomer, mathematician, and engineer
Xu Yue
Chinese astronomer and mathematician
Shen Kuo
Chinese astronomer, mathematician and official
Zhang Heng: seismoscope
Zhang Heng
Chinese mathematician, astronomer, and geographer
Liu Hui
Chinese mathematician
Li Zhizao
Chinese mathematician and astronomer
Zhu Shijie
Chinese mathematician
Li Shanlan
Chinese mathematician
Qin Jiushao
Chinese mathematician
Wang Xiaotong
Chinese mathematician
Galileo
Galileo
Italian philosopher, astronomer and mathematician
Giordano Bruno
Giordano Bruno
Italian philosopher

Related Quizzes and Features

Quiz
Michael Faraday (L) English physicist and chemist (electromagnetism) and John Frederic Daniell (R) British chemist and meteorologist who invented the Daniell cell.
Faces of Science
Equations written on blackboard
Numbers and Mathematics
Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
All About Astronomy