Since their relatively recent appearance on the commercial scene, rare-earth magnets have made quite a splash in the public imagination. The amount of magnetic energy packed into these tiny ...
As Earth’s magnetic shield weakened ... This could explain why cave art flourished during this time period, as human populations spent more time in dark, enclosed spaces.
Even with Earth’s strong magnetic field today, we’re still susceptible ... and the sudden widespread appearance of figurative art in caves around the world.
If it weren’t for the magnetic field that surrounds our planet, blocking cosmic radiation and solar wind, Earth would likely have little atmosphere to speak of. Life (at least of the human variety) ...
Likewise, a wire passing through a magnetic field creates an electric current within the wire. This is the basic principle that allows electric motors and generators to operate. In the Earth (see ...
Would a dramatic change in the Earth's magnetic field affect creatures that rely on it during migration? Late on a January night in 1993 I found myself on a beach on the Pacific coast of Costa ...
Built with £250,000 of investment, Glasgow University has opened a state-of-the-art magnetism lab ... is designed to eliminate magnetic interference from any external sources. For example, nearby ...
WHEN the mean horizontal force of the earth's magnetism for each day of the year has been deduced from well-corrected observations of the bifilar magnetometer, and the results have been projected ...
The Earth's Magnetism The fact that the grains of ancient rocks are lined up like tiny compass needles has led to the astonishing conclusion that the earth's magnetic poles have wandered and ...