Kelvin's first tide predicting machine, 1872 Image number:
10300041 Detail. Lord Kelvin (1824-1907) designed this machine
to predict the tide patterns in harbours. It has ten dials which
are are set with the oceanographic and astronomical data of the
harbour. On cranking the handle, the machine calculates the
harbour's tide patterns for up to a year in only four hours. A
machine like this was used in central India for many years to
calculate all the tidal patterns for the country. - Image
number: - Science Museum/Science & Society Picture Library -
Image rights: - Science Museum