If you want a strong magnet, the obvious answer is to buy one. However, for a variety of reasons, you might want to combine several smaller magnets. There are a few ways to do this, but the Halbach ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Illustration of how the razor-sharp flakes of graphene line up together on a surface and can kill bacteria without harming healthy human cells. The bactericidal graphene surfaces developed at Chalmers ...