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Tiny probe that senses deep in the lung set to shed light on disease Jun 17, Apr 01, Paper sensors remove the sting of diabetic testing Dec 21, Dec 20, Dec 18, Load comments 0. Let us know if there is a problem with our content. Your message to the editors. Your email only if you want to be contacted back. Send Feedback. Thank you for taking time to provide your feedback to the editors. E-mail the story How engineers are straightening the Leaning Tower of Pisa.
Your friend's email. Your email. I would like to subscribe to Science X Newsletter. Shortly after that, war broke out between Pisa and Genoa, another Italian city-state, halting construction for nearly a century. When construction resumed, chief engineer Giovanni di Simone tried to compensate for the lean by adding extra masonry to the short side, but the additional weight caused the structure to tilt even further.
By , it was leaning 5. That year, the monument was closed to visitors and the bells removed as engineers started extensive reparations to stabilize it. The straightening continued after the tower reopened in , and in sensors showed the subsiding motion had stopped, after a total improvement of some 19 inches.
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