Sir David Frost reckoned to have been on Concorde about 300 times. He said: "I think it's very sad it's all coming to an end. This last flight is a great experience and there will be a lot of emotion.

Dielectrics with functionally graded material (d-FGM), which have spatially nonuniform dielectric properties, is effective to improve the insulation performance without complicating the structure. In ...