If shrunken down to micron size, a compass needle could wobble. (Courtesy: iStockphoto/tobias machhaus) A tiny magnetic needle just 10 μm long could be used to create a magnetic-field sensor that – if ...

Such "magnetotactic" microorganisms use a miniature, cellular compass made of a chain of single nanomagnets, called magnetosomes. The entire bacterium is oriented like a compass needle inside the ...

He and his colleagues claim to have found a protein in fruit flies that acts a compass needle. It’s composed of iron and sulfur atoms, and an outer layer of cryptochromes wraps around it.

Now when the compass needle is inside the orienting needle, the compass bearing that you read off your compass will be in relation to true north instead of magnetic north. If you have a fixed-ring ...

HONOLULU (HawaiiNewsNow)- Dr.V and Taizo Braden are back at the Honolulu Theater for Youth. Let's see how a compass works and how you can make one. Fill your glass bowl with water. Run the magnet ...

Below this is the round compass housing with a “360-degree dial” and “north sign,” within which is the floating “magnetic needle,” the “orienting arrow” beneath it, and ...

Turn the housing so north lines up with the direction of the travel arrow. Turn your body (not just the compass) so the magnetic needle is contained within the orienting arrow. Voil! You’re now facing ...

That's where the compass comes in - you dial up the bearing on the compass ring, align the needle on the base, and direction arrow points you the right way.

Once you get your hands on Pirate’s Compass, equip it. This compass is very easy to use. Follow the direction the red needle is pointing, and it will take you to an unopened luggage case.

One year ago, you were reading this, by Dave Hinerman: "Dad? How did people find geocaches before GPSes were invented?" A retro-GeekDad like me longs for a teachable moment like that. The short ...