Q: In the sentence, “None of that revenue is going to the city, whose main source of income is taxes,” is it correct to use “whose” to refer to a city, an inanimate object? — Mary Kaskan, Watertown, N ...

a new mathematical model describes the fracture process for materials such as glass, polymers, concrete, ceramics, metals, rocks, and even certain geological fractures. The simulation model is ...

For astrophysicists neutron stars are extremely complex astronomical objects. Research has demonstrated that in certain respects these stars can instead be described very simply and that they show ...