Millau Viaduct slightest movement in the Viaduct, and measure its resistance to wear-and-tear over time. Anemometers, accelerometers, inclinometers, temperature sensors are all used for the instrumentation network. Twelve fibre optic extensometers were installed in the base of pylon P2. Being the tallest of all, it is therefore under the most intense stress. These sensors detect movements on the order of a micrometre. Other extensometers, electrical this time, are distributed on top of P2 and P7. This apparatus is capable of taking up to 100 readings per second. In high winds, they continuously monitor the reactions of the Viaduct to extreme conditions. Accelerometers
The Bridge over the River Kwai the novel, the bridge is not destroyed: the train plummets into the river from a secondary charge placed by Warden, but Nicholson (never realising "what have I done?") does not fall onto the plunger, and the bridge suffers only minor damage. Boulle nonetheless enjoyed the film version though he disagreed with its climax. After the film was released, the Thais faced a problem as thousands of tourists came to see the 'bridge over the River Kwai', but no such bridge existed due to Boulle's aforementioned misassumption. As the film and book meant to 'portray' the bridge over the Mae Klong,