The magnetic compass has been a crucial navigational tool for around a thousand years or so, perhaps longer. While classical versions still work perfectly well, you can now get digital magnetometer… ...

In the days since GPS was invented, many of us have lost the skill of navigating by a good old compass and map. As a family ...

Our wilderness expert's guide will teach the parts of a compass, and how to use this valuable tool. Print Subscription-$35 for the Best Field & Stream Stories · Subscribe Today ...

Some inventions are so simple that it’s hard to improve them. The magnetic compass is a great example — a magnetized needle, a bit of cork, and a bowl of water are all you need to start… ...

Furthermore, studies investigating what parts of a migratory bird´s brain are active when the birds use their magnetic compass showed that the cryptochrome-containing neurons in the eye and a ...

Since the compass is underneath the wire, the magnetic field due to the wire will be 90° to the Earth's magnetic field. ... There are many parts to this effect and I don't want to start from scratch.

According to this model, when a photon hits the compass, entangled electrons are scattered to different parts of the molecule. Variations in Earth's magnetic field cause them to spin in different ...

Magnetic compass information is known to have a key role in bird orientation, ... Immediately before the orientation tests, we exposed all test birds to parts of the local evening sky.