E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Leaning Tower.
The one at Pisa, in Italy, is 178 feet in height, and leans about 14 feet. At Caerphilly, in Glamorganshire, there is a tower which leans eleven feet in eighty.
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“The Leaning Tower of Pisa continues to stand because the vertical line drawn through its centre of gravity passes within its base.”—Ganot: Physics.
