
William Thomson's Tide Predicting Machine, 1872
1872
1872
1769
132 CE
1730-1760 (original); 1931-1939 (replica)
1798 (original); 1977 (model)
1931
1931
1934
1955
1937
1934
1977
1923
1928
1921
1964-1967
1948-1950
1845
1876
1965
1956-1966
1834
1960-1965
1950
1834
1834
1920
1958
1960
1905
1960
1960
1975-1980
1925
1968-1972