Imagine a quadcopter hovering above a payload – a can of beans, perhaps. The ‘copter descends onto the payload, activates an electromagnet, and flies away with a hobo’s dinner. Right now, this is a ...

A large regional concrete recycler required rebar removal from crushed concrete. An additional requirement was that the rebar ...

Magnets are awesome. Electromagnets are even cooler. But what if you could make a semi-permanent switchable magnet that acts like an electromagnet, but doesn’t use any energy to hold metal? You’re ...

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 ...

The magnet floating device operates using a small Hall Effect sensor where the field of the permanent magnet can be detected or be able to modulate the magnetic field of electromagnet. The magnet ...

Storch Magnetics has developed a magnetic sweeper that can be equipped with a permanent magnet or an electromagnet for vehicle-mounted applications such as a forklift ...

Part of Combined Science Interactions over small and large distances The strength of the electromagnet can be increased by passing more electric current through the coils and/or wrapping more coils ...