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Shen Kuo [a] (Chinese: 沈括; 1031–1095) or Shen Gua [b], courtesy name Cunzhong (存中) and pseudonym Mengqi (now usually given as Mengxi) Weng (夢溪翁), [1] was a Chinese polymath, scientist, and statesman of the Song dynasty (960–1279). Shen was a master in many fields of study including mathematics, optics, and horology.
Geomorphology: In his Dream Pool Essays of 1088, Shen Kuo (1031–1095) wrote about a landslide (near modern Yan'an) where petrified bamboos were discovered in a preserved state underground, in the dry northern climate zone of Shanbei, Shaanxi; Shen reasoned that since bamboo was known only to grow in damp and humid conditions, the climate of ...
The Chinese polymath Shen Kuo (1031–1095) of the Song dynasty (960–1279) was the first to accurately describe both magnetic declination (in discerning true north) and the magnetic needle compass in his Dream Pool Essays of 1088, and the Song dynasty writer Zhu Yu (fl. 12th century) was the first to mention use of the compass specifically ...
Shen Kuo (1031–1095), author of the Dream Pool Essays, is a prime example, an inventor and pioneering figure who introduced many new advances in Chinese astronomy and mathematics, establishing the concept of true north in the first known experiments with the magnetic compass.
Date: Person: Contribution: 1088: Shen Kuo: First person to write of the magnetic needle compass and that it improved the accuracy of navigation by helping to employ the astronomical concept of True North at all times of the day, thus making the first, recorded, scientific observation of the magnetic field (as opposed to a theory grounded in superstition or mysticism).
Today, kayaking is a summer Olympic sport, and a hobby enjoyed by millions across the world. For Native Americans, stickball was not only a recreational sport, but a spirtual practice. - National ...
11th century: Shen Kuo discovers atmospheric refraction and provides the correct explanation of rainbow phenomenon [citation needed] 11th century: Shen Kuo discovers the concepts of true north and magnetic declination. 11th century: Shen Kuo develops the field of geomorphology and natural climate change. 1000: Al-Karaji uses mathematical ...
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.