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 ...

Earth’s magnetic field sustains life on our planet, protecting us from solar winds, radiation and extreme changes in temperature. But around 591 million years ago, it almost collapsed.

S cientists have found that it’s possible to generate electric power from Earth’s rotation through its own magnetic field ...

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 ...

Geophysicist Daniel Lathrop wants, among other things, to use it to predict when the Earth’s magnetic field will next reverse. Over the course of our planet’s history, the field has flipped ...

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 ...

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 ...

Their analysis showed the complex magnetic field can determine increases in module fill factor and falls in maximum power. Researchers at the Multimedia University of Kenya have claimed the Earth ...

Then, in 1973, two geophysicists called Christopher Russell and Robert McPherron presented a theory involving the magnetic fields of the Earth and the Sun. Most of the time, the Earth and Sun’s ...

FROM a knowledge of the mass of the Earth and its moment of inertia and from an analysis of seismic data, Bullen 1 has reconstructed a pressure-density curve for the Earth's interior. The outer ...