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ScienceBlog.com
scienceblog.com > b-in-1990-italy-closed-the-leaning-tower-of-pisa-for-the-first-time-in-its-800-year-history-and-engineers-spent-the-next-11-years-siphoning-soil-from-beneath-its-north-side-the-tower-was-pulled-17-inc

In 1990, Italy closed the Leaning Tower of Pisa for the first time in its 800-year history, and engineers spent the next 11 years siphoning soil from beneath its north side — the tower was pulled 17 inches back toward vertical and is expected to stand for another 300 years

2+ day, 6+ hour ago   (264+ words) The engineer put in charge of saving the Leaning Tower of Pisa summed up the problem with a confession: "No matter how many calculations we made," John Burland told Scientific American, "the tower should not have been standing at all....