NR-1 Sinkhole NR-1 Sinkhole The NR-1 Sinkhole is a giant underwater sinkhole located in the Straits of Florida southwest of Key West, Florida. It is found at an approximate depth of of water at the foot of the Pourtales Escarpment, an area of Quaternary sediment. It was discovered in October 1994 during a survey conducted by the American submarine NR-1, a U.S. Navy nuclear research submarine, and is named for the submarine. It was first identified via side-scan sonar and near-bottom echo sounder data, prompting a second survey in May 1995 to confirm the finding. Discovery of the NR-1 Sinkhole prompted scientific
Hornslet wind-turbine collapse which bent in the direction of the wind. The top half of the tower then sheared off at the bend and fell to the ground. The base of the tower remained standing. The debris of the turbine flew 200–500 metres away. No injuries were caused. The collapse was filmed from a nearby farmhouse. The film was shown on several TV stations and is available online. The turbine was out of service until June 2008 and was eventually replaced by a new wind turbine of the same design. Hornslet wind-turbine collapse The Hornslet Wind Turbine Collapse was a spectacular collapse of