A terrifying roller coaster rescue is underway in Galveston, Texas Thursday. A car became stuck on a vertical track, leaving eight people dangling at the very top of the ride. Firefighters are using a long-ladder truck to reach the riders several stories above the ground. Crews are working to remove each rider from the ride by gently catching them and lowering them into the basket at the end of the ladder, before walking them down an incredibly steep structure to safety. #texas #rollercoaster #r

The science of hearing - Douglas L. Oliver