Christopher Chyba held a hollow, dark cylinder made of manganese, zinc, and iron in his Princeton lab, looking skeptically at ...

Spring equinox may be the best time to see the aurora with a peak in solar activity combining with a special effect.

Therefore, the sample offers the first solid measure of not only the strength of Earth's ancient magnetic field, but also of the timing of when the magnetic field originally appeared. "Extracting ...

Pictures may enliven us, but other data, such as information about magnetic fields, add a huge amount to our understanding of ...

suggesting that such an event is directly linked to a dramatic change of the strength of Earth’s magnetic field. “This record reveals a substantial increase in the carbon-14 content of the ...

A weak magnetic field likely attracted matter inward, contributing to the formation of the outer planetary bodies, from ...

Would a dramatic change in the Earth's magnetic field affect ... robins into a steel chamber and reduced the strength of the ambient magnetic field by a third, the birds' flutterings were no ...

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 ...

This, in turn, affects convection in the outer core—the dynamo-like process that generates the magnetic field that protects life on Earth from harmful cosmic rays. "Flow in the outer core drives ...

It’s something [mircemk] demonstrates, with an Arduino-powered magnetic field strength meter that uses a UGN 3503U Hall effect device. The circuit is extremely simple, comprising the sensor ...

The compass needle points in the direction of the Earth's magnetic field, or the magnetic field of a magnet. place the plotting compass near the magnet on a piece of paper mark the direction the ...

The strength of the Earth’s magnetic field ranges between 25,000 and 65,000 nano-Tesla (nT) with values of 31-58,000 nT between the equator and 50 degrees latitude. The complexity of the ...