This means that their magnetism is there all the time and cannot be turned on or off as it can with an electromagnet. Converting a magnet to a non-magnet is called demagnetisation. Magnets are ...

The job of a catalyst is to ultimately speed up reactions, which could reduce an hour-long process into several minutes. It ...

Have you ever wondered why magnets become magnetic? In this video, we dive into the fascinating physics of magnetization—the ...

Scientists show that applying an external magnetic field can precisely tune the spin state of single-atom catalysts (SACs) and boost their performance.

The magnetic field around a circular loop of wire is similar to that of a bar magnet. When an electric current flows through the loop, it generates a magnetic field. Inside the loop, the magnetic ...

This movement produces an electrical current that generates and maintains the strong magnetic field around the planet. The field has two opposite poles located at the north and south of the planet, ...

Earth's magnetic field can be visualized if you imagine a large bar magnet inside our planet, roughly aligned with Earth's axis. Each end of the magnet lies relatively close (about 10 degrees ...

That magnet is strong, representing roughly 75 percent of the intensity of Earth's magnetic field at the surface. Of course, a bar magnet is not a perfect representation — it's actually electric ...

Given the importance of this gargantuan bar magnet in our day-to-day lives, it’s worth understanding how it works — and when it doesn’t. Since the magnetic field is sustained by geological activity ...

The magnetic field lines of a bar magnet can be viewed by using compasses or by shaking iron filings onto a platform above the magnet. Place the magnet on top of the paper in view of the document ...