Compass A Story of Exploration and Innovation Alan Gurney W.W. Norton: 320 pp., $22.95 ...

Magnetic North A marine compass will have one set of magnets that is balanced to seek out magnetic north. Magnetic north is not true north — as in the North Pole — but the location of Earth’s north ...

So, if you want a true heading of 90 degrees, your GPS will report a compass heading of 96 degrees—the compass-card reading, plus the magnetic variation. If the compass’s magnetic deviation is also 5 ...

Some lunar rocks have left scientists puzzled for decades. Despite the Moon having no global magnetic field today, samples collected during NASA’s Apollo missions and data from orbiting spacecraft ...

The magnetic compass — used in navigation for hundreds of years — is a tool that helps you find your way. Good beginner hiking/orienteering compasses can be found online or in outdoor sections ...

Monarch butterflies have a keen sense of direction, even on cloudy days. This is because they have a magnetic compass to direct their migration in addition to navigating by the position of the sun ...

It has recently been discovered that they can use Earth's magnetic field like a compass to stay on track during their trip of up to 1,000 kilometres (620 miles).

"It's as if you throw a 52-card deck in the air, in a magnetic field, and each card has a compass needle," study co-author Benjamin Weiss, who is a professor of Earth and planetary sciences at MIT ...

Well, the reason is that your hotel magnetic card and your credit card use different magnetic materials. To explain that, I'm going to tell you "The Magnetic Stripe Story", which begins in 1821.

Compass smart card can’t prevent fraud, police say. Transit police expect to see a jump in fraud cases involving transit passes once TransLink launches its new Compass smart-card system this fall.