Earth is surrounded by a magnetic field generated by electric currents from within the planet. Compasses take advantage of this field to identify north and serve as a navigational aid. But one social ...

Atomic physicists “are jacks of all trades,” according to Alex Sushkov. “You have to have the idea, design the experiment, build the experiment, run the experiment, fix everything, take data, analyze ...

Although the Earth’s magnetic field is reliable enough for navigation and is also essential for blocking harmful solar emissions and for improving radio communications, it’s not a uniform strength ...

Just as the ancient Minoans of Crete used the stars for maritime navigation, birds today migrate with the help of Earth’s magnetic field. ⇨ Love animals and science as much as we do? Join Pop Mech Pro ...

Like most planets in our solar system, the Earth has its own magnetic field. Thanks to its largely molten iron core, our planet is in fact a bit like a bar magnet. It has a north and south magnetic ...

Research BackgroundWhen walking through a dense forest, a compass is indispensable for knowing which direction to take, and it works because the Earth ...

The physical processes behind the two phenomena are different. When heated, a permanent magnet loses its magnetism because its relatively well-aligned magnetic domains, which are tiny magnets, get ...

Every year, great white sharks travel over 12,000 miles from South Africa to Australia, charting a nearly perfect straight line across the ocean. And every year, they turn around and travel back.