| | |
|
| |
| | |
|
|
|
Simple Basic Black Compass
|
black compass
|
Detailed Description
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. A compass can be used to calculate heading, used with a sextant to calculate latitude, and with a marine chronometer to calculate longitude. It thus provides a much improved navigational capability that has only been recently supplanted by modern devices such as the global positioning (GPS).
A compass is any magnetically sensitive device capable of indicating the direction of the magnetic north of a planet's magnetosphere.
|
|
|