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precipitation Christopher Wren Rain gauge Robert Hooke Galileo Galilei pluviometer
05-08
Northwest China Northwest Territories precipitation Ecological environment
03-10
![How is the amount of precipitation often mentioned in weather forecasts measured? The ancients had a clever trick[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)
