A compass is a navigational tool used to determine direction relative to the Earth's magnetic field. It consists of a magnetized needle that aligns with the Earth's magnetic field, allowing the user to determine magnetic north. Compasses are used in various settings, including navigation and surveying. They come in various types, including handheld compasses, baseplate compasses, and sighting compasses. Handheld compasses are small and portable, while baseplate compasses have a transparent baseplate that can be used to mark map bearings. Sighting compasses have a sighting mechanism that helps to align the compass with the user's target. Compasses may also have additional features, such as a clinometer to measure slope angle, a magnifying glass to read small print, or a luminescent dial for use in low-light conditions. Overall, compasses are a versatile and essential tool for anyone who needs to navigate and orient themselves in the great outdoors or in other contexts where directional guidance is required.
