Japanese tits have previously been observed combining different calls into phrases to convey meanings. The birds may also use their wings to signal to their partner that they should enter the nest ...

As Boeing’s 787 illustrates, airliner wings are more slender than they used to be. But as wings get slimmer in pursuit of lower drag and lighter weight, flutter becomes a greater concern. Flutter is ...

European researchers have used scaled aircraft demonstrators to test new concepts for lighter, larger-span wings intended to avert flutter problems. The ground vibration tests were conducted at a ...