If you need help visualizing magnetic fields, these slow-motion video captures ... The technique and equipment are simple and shown in the video. A layer of black sand is spread on a piece of ...

A weak magnetic field likely attracted matter inward, contributing to the formation of the outer planetary bodies, from ...

A coil with an iron core is called an electromagnet. The iron core increases the coil’s magnetic field strength. A simple electromagnet is made by coiling wire around an iron nail. An iron core ...

Would a dramatic change in the Earth's magnetic field affect creatures that rely on it during migration? Late on a January night in 1993 I found myself on a beach on the Pacific coast of Costa ...

A team of researchers at the Max Planck Institute for Intelligent Systems (MPI-IS) in Stuttgart developed a biohybrid micro ...

The part of a compass that moves around to show the magnetic field is called the needle because you can make a simple compass out of a sewing needle. First the needle must be magnetised by rubbing ...

It’s something [mircemk] demonstrates, with an Arduino-powered magnetic field strength meter that uses a UGN 3503U Hall effect device. The circuit is extremely simple, comprising the sensor ...

Fluid-rock interactions on ancient Mars may have produced abundant magnetic minerals that preserved unusually intense records ...