Researchers have constructed a 30-ton sphere that spins at more than 90 mph to generate magnetic fields. The 10-ft.-dia. sphere is filled with 13.5 tons of liquid sodium to mimic the Earths liquid ...

Magnetic Field Formula: Explore the fundamental principles of magnetic fields, including their formulas, properties, and diverse applications. Learn how magnetic fields influence everyday life and ...

Around 3,000km below our feet — 270 times further down than the deepest part of the ocean — is the start of the Earth’s core, a liquid sphere of mostly molten iron and nickel.

Measuring magnetic fields inside samples has only been possible indirectly up to now. Magnetic orientations can be scanned with light, X-rays, or electrons - but only on the surfaces of materials ...

If you could travel back in time 41,000 years to the last ice age, your compass would point south instead of north. That’s because for a period of a few hundred years, the Earth’s magnetic ...

Measuring magnetic fields inside samples has only been possible indirectly up to now. Magnetic orientations can be scanned with light, X-rays, or electrons -- but only on the surfaces of materials.

BERLIN—Measuring magnetic fields inside samples has only been possible indirectly up to now. Magnetic orientations can be scanned with light, X-rays, or electrons—but only on the surfaces of ...