Compasses and iron filings are used to map a magnetic field. Magnetic Fields: Compasses and iron filings are used to map a magnetic field. Students learn to draw magnetic field lines to represent ...

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 ...

Energy harvesting from power lines and magnetic fields has emerged as a promising avenue to complement conventional energy systems. This approach leverages ambient electromagnetic fields generated by ...

Researchers analyzed data from 125 magnetometer sensor stations along fault lines throughout California. The technology to predict when an earthquake will strike does not yet exist. Researchers have ...

In between all the stars in our galaxy, there is a vast, diffuse mix of gas and dust known as the interstellar medium — and scientists have developed a new computer model to explore the magnetism and ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The sun has a ...