A number of readers questioned the veracity of the technology presented in this article. To address their concerns, we did a follow-up, which can be found here. Permanent magnets are an integral part ...

Why is electromagnetic repulsion so infrequently used in applications? As in, using an electromagnet to repel a permanent magnet, rather than to attract a magnet or ferrous material? I was doing some ...

Toshiba Elevator and Building Systems Corp. will employ so-called maglev technology -- capable of suspending objects in mid-air through the combination of magnetic attraction and repulsion -- to ...

Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the closest stars to Earth, such that its light takes only six years to get ...