GEOLOGY

Detailed explanation-1: -A compass is a navigational instrument for determining direction relative to the Earth’s magnetic poles. It consists of a magnetized pointer (usually marked on the North end) free to align itself with Earth’s magnetic field. The compass greatly improved the safety and efficiency of travel, especially ocean travel.

Detailed explanation-2: -A compass is a device that has a magnet on a needle that spins freely. It is used for navigation because its needle usually points north.

Detailed explanation-3: -Alternate titles: mariners compass.

Detailed explanation-4: -a slender magnetized steel rod that, when adjusted to swing in a horizontal plane, as in a compass, indicates the direction of the earth’s magnetic fields or the approximate position of north and south.

Detailed explanation-5: -Noun. compass needle (plural compass needles) A magnetized pointer (usually marked on the North end) within a compass, free to align itself with the Earth’s magnetic field.