A device that uses a form of magnetic levitation to separate components of illegal drugs could prove useful in the fight against crime. Street drugs are often a mixture of substances, and the police ...

A magnetic-levitation device can sort viruses and bacteria that naturally float in the air, making them ready for further analysis.

Stanford Medicine researchers invent an electromagnetic device that can gently sort different types of cells by levitating them to different heights. It looks like a magic trick: Cells at the bottom ...