A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction ...

The average Hackaday reader likely knows, at least in the academic sense, what a magnetic field looks like. But as the gelatinous orbs in our skull can perceive only a tiny fraction of the EM spect… ...

Earth's magnetic field originates in the outer core and extends out into the magnetosphere — a region of space that helps protect Earth from space weather.

The Earth is surrounded by a magnetic field, generated by the movement of the planet’s liquid core. It’s why a magnetic compass points north. At Earth’s surface, this magnetic field is fairly weak, ...

The Arduino magnetic drawing machine operates using an Arduino board mounted with a magnetometer. This setup, combined with node.js and socket.io, allows the machine to detect disturbances in the ...

Earth’s Magnetic Field Could Take Longer to Flip Than Previously Thought New research suggests a polarity reversal of the planet takes about 22,000 years, significantly longer than former estimates ...

The magnetic field flip is so gradual, you won't even notice when it happens. And no, however dramatic it might sound, it is not the sign of an impending apocalypse.

This magnetic cycle lasts approximately 22 years, through which the sun's magnetic field reverses and then reverts to its original state, Ryan French, a solar astrophysicist and Space.com ...

Mercury, the smallest of the eight planets with a diameter of 4900 kilometres and the closest to the Sun, looks more like the Moon than the Earth from the outside. It is the only rocky planet that has ...