There's a reason why pilots are wary of following too close behind large aircraft like the Boeing 777. Such aircraft generate strong vortices from their wings, which can provide trailing airplanes with a rough ride. Sometimes, though, wake turbulence can be beautiful, including when low clouds reveal what is usually invisible to the naked eye. In this case, a 777 operated by Emirates Airlines was on approach to Birmingham International Airport in the UK. Low clouds separate as the plane… (mashable.com) 更多...