Weather map map using his own system of symbols, thereby creating the world's first weather map. He used his map to prove that air circulated clockwise around areas of high pressure; he coined the term 'anticyclone' to describe the phenomenon. He was also instrumental in publishing the first weather map in a newspaper, for which he modified the pantograph (an instrument for copying drawings) to inscribe the map onto printing blocks. "The Times" began printing weather maps using these methods with data from the Meteorological Office. The introduction of country-wide weather maps required the existence of national telegraph networks so that data
Four Treasures of the Study Four Treasures of the Study Four Treasures of the Study, Four Jewels of the Study or Four Friends of the Study is an expression used to denote the brush, ink, paper and ink stone used in Chinese and other East Asian calligraphic traditions. The name appears to originate in the time of the Southern and Northern Dynasties (420–589 AD). Chinese culture is very fond of four word couplets, and the Four Treasures is another example: "文房四寶: 筆、墨、紙、硯," (Pinyin: "wén fáng sì bǎo: bǐ, mò, zhǐ, yàn") ""The four jewels of the study: Brush, Ink, Paper, Inkstone."" In the couplet mentioned,