Primarily, the compass was used for geomancy for a long time before it was used for navigation ... "The lodestone follows a maternal principle. The needle is struck out from the iron (originally a ...

The Compass — Walking The Iron Curtain, Walking the Iron Curtain: Wild lands reunited Mary-Ann Ochota meets the people who reunified Germany through nature BBC World Service ...

Iron is particularly important in magnetotactic ... synthesize chains of nano-sized magnetic particles that function as a compass needle. This "nano-compass" allows the microbe to passively ...

On Earth, a compass needle aligns with our planet's geomagnetic field, which is generated by the movement of molten iron in Earth's outer core. This strong, bullet-shaped global magnetic field ...