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
Word polygon Word polygon A word polygon is a word puzzle where the solver is presented with a grid or shape with 5 to 9 letters. The goal is to create as many words as possible using each letter no more than once. There are many variations of the rules, e.g., the minimum word length (usually 3 or 4) may vary, and it may be stipulated that specific letters must be included in any word. The objective of the puzzle is to find words which can be made using a given group of letters. Each letter may only be used once in