At some point during our primary school careers, most of us probably constructed a simple compass, often by floating a ...

If shrunken down to micron size, a compass needle could wobble. (Courtesy: iStockphoto/tobias machhaus) A tiny magnetic needle just 10 μm long could be used to create a magnetic-field sensor that – if ...

A magnet (It can be a flat refrigerator magnet or a more powerful magnet, such as a rare earth magnet—the most common type is made of neodymium—which can be purchased at many hardware stores. A ...

Back when I was a kid, we had these things called compasses. It's just a magnetic needle inside a case that is free to rotate. Since a magnetic field can exert a torque on another magnet, this needle ...

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 ...

Does it matter if you put a video camera near your magnetic compass that is used for navigation? The theoretical answer is "yes." But the practical answer? "Probably not." Now for a detailed ...