Read other letters about this article
There is no such thing as physics or structural engineering, physical chemistry or thermodynamics. There's only a vague sense of what uninformed laymen express an equally ignorant opinion about. In the meantime I can dial up a You Tube video of an Airforce test, driving an MD F-4 Phantom II on a rocket sled into a concrete block at near supersonic speed and before your very eyes the plane actually evaporates into a cloud of dust leaving zero identifiable parts larger than the point of a ballpoint pen.