You’ve probably heard the term magnetic gradient before, but have you ever seen one? Now you can in [supermagnetman’s] video, below. The key is to use very fine (2 micron) iron filings and special ...

Many grade school students perform a simple physics experiment by using iron fillings to outline a magnetic field. Seizing on their inner-child, physicists at the Max Planck Institute for Quantum ...

Ancient bricks from Mesopotamia have helped confirm a mysterious anomaly in Earth's magnetic field that occurred 3,000 years ago, a new study finds. Brickmakers baked the bricks, which were imprinted ...

An already gigantic hole in Earth’s natural force field has grown by nearly half the size of Europe in 10 years, according to a new study. The Earth is protected by the cosmic equivalent of cling film ...

Mercury’s core may be wearing a metal jacket. New experiments suggest the planet’s innards stay warm thanks to an insulating layer of iron sulfide, which could help to explain how the small world has ...

About 3,000 years ago in ancient Mesopotamia, brickmakers imprinted the names of their kings into clay bricks. Now, an analysis of the metal grains in those bricks has confirmed a mysterious anomaly ...