For nearly a century, scientists have been puzzling over fossils from a strange and robust-looking distant relative of early ...

A university student on a fossil-hunting field trip in Dorset made a stunning discovery: a 145-million-year-old jawbone ...

This article proposes a multi-auxiliary-teeth pole-changing machine based on zero-sequence current. Through changing the direction of the zero-sequence current, the excitation flux field is varied and ...