A permanent magnet is always magnetic. It has an invisible magnetic field. Only certain materials, such as iron, feel a magnetic force. Permanent magnets can come in lots of different shapes and ...

they are not repelled they lose most or all of their magnetism when they are removed from the magnetic field This means that you can only show that an object is a permanent magnet by checking if ...

Superconductors aside, these devices are pretty much all operating in the same way; an object with a permanent ... magnet can not only be levitated, but locked in place using a rotating magnetic ...

A new prototype is laying claim to the title of smallest, lightest untethered flying robot. At less than a centimeter in ...

Not electromagnets, but those permanent magnet fixtures like the ones that ... As it turns out, the ability to nullify the powerful magnetic field from a bunch of rare earth permanent magnets ...

Scientists have created what they say is the world's smallest untethered flying robot, by taking a unique approach to its ...

Follow-up research on a 2023 image of the Sagittarius C stellar nursery in the heart of our Milky Way galaxy, captured by ...