I walked out onto Foulney Island near Barrow for the first time in nearly 40 years. The wind was unbelievable, nearly wrenching the car doors off. Here's a view of the car park barrier with the town in the background. If you enlarge the picture, you might be able to make out the Town Hall and the submarine sheds. The car park barrier is an example of a cantilever - a beam supported at only one end. In theory, the whole barrier should tip over to the right, rotating clockwise around a pivot point at the base of the support. So the concrete support must provide an equal and opposite moment to prevent that happening.