The second proposal is that animals that sense electric charges (such as were discussed in last month’s Inner Nature article) ...

Take the Bar-tailed ... This field has two important properties that are useful for navigation: direction and inclination. The directional component points roughly toward the magnetic north and south ...

Classical circular field lines with one point “p” and its vectors around an infinite wire with electrical current “I”, going upward. This wire imposes at point “p”, a current field vector C (green) in ...

Magnetic Field ... similar to that of a bar magnet. When an electric current flows through the loop, it generates a magnetic field. Inside the loop, the magnetic field lines form concentric ...

Make a list of the materials you test and note what happens. What's Going On? The magnetic-field lines from the magnet pass through the cardboard, the air, and other materials like the craft stick and ...

What happens? The compass needles will reverse direction when the electrical current reverses direction. What’s Going On? Compass needles line up with magnetic fields. Since Earth is a magnet, a ...

When you hold a compass and turn it, the needle aligns itself with the earth’s magnetic field, pointing north. This allows us to determine the four cardinal directions: north, south, east ...

the magnetic field pattern of a DC electric motor. [Moritz v. Sivers] had another idea for this magic material however, and used it to make a Magnet Viewing Clock. The clock’s front panel looks ...

Even if you can’t see them, the charged particles, magnetic fields ... much like a regular bar magnet. The Earth’s magnetosphere and atmosphere form a protective shield against the solar wind ...