The reliability level of large aviation planetary mechanisms, serving as the cornerstone and essential component for various heavy aircraft transmission systems, significantly impacts aircraft ...

Replacing the rolling bearings with journal bearings in the planetary gear of a high-power wind turbine gearbox can improve the power density of the gearbox, but it is unknown whether the journal ...

When your schedule allows for unhurried exploration and your spirit craves the thrill of discovery, Miracle Hill stands ready ...

This text for the first or second year undergraduate in mathematics, logic, computer science, or social sciences, introduces the reader to logic, proofs, sets, and number theory. It also serves as an ...

Ancient Greek astronomers were the first to gather knowledge about space exploration. Richard Branson and Jeff Bezos could ...