It’s an electromagnet pendulum analog circuit. Whether you’re building it, or just studying the schematics, this is a fun way to brush up on the non-digital side of the craft. The pendulum is ...

Invented in 1824 by the British physicist William Sturgeon, electromagnets are a fixture of modern life, appearing in loudspeakers, motors, magnetic resonance imaging (MRI) machines, maglev trains ...

Running a current through a coil, produces an electromagnet. Turn up the voltage in this experiment, and make that current strong enough, and your electromagnet can rip a soda can in half.

Magnets created this way are called electromagnets. By controlling the amount of current, we can make electromagnets of any strength we want. We can even reverse the magnet’s polarity by reversing the ...

The treatment is called repetitive transcranial magnetic stimulation or rTMS. It's basically an electromagnet. When applied to the skull just behind the left forehead, the device induces a tiny ...

(Courtesy: Dan Hixson/University of Utah College of Engineering) Researchers at the University of Utah in the US have used a set of electromagnets to move non-magnetic objects remotely – a technique ...

THE electromagnet designed for the use of oculists by Dr. Haab, director of the Zurich eye clinic, and shown in the accompanying photographs, is the most powerful and efficient apparatus of this ...

a public education project to teach people about electromagnets and waves. Even better, [Justin Miller] has written up how he built this exciting project. Catch The Wave! consists of four small ...

The astonishing result: "The tiny graphene disks briefly turned into electromagnets," reports HZDR physicist Dr. Stephan Winnerl. "We were able to generate magnetic fields in the range of 0.5 ...