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While they may seem old-fashioned, compasses are still widely used today because they are a tried-and-true method to keep yourself going in the right direction. While cutting-edge GPS devices are all the rage today, there are places where you can't get a signal, but a magnetic compass points you in the right direction whether you're deep in the woods or far out at sea. For a higher-tech option, we also have digital compasses that provide a greater level of precision and, in some cases, additional details such as temperature and elevation! If you are planning a hiking expedition, a portable compass that is extra durable is best, but for boating adventures, you'll want a waterproof compass with a strong mount.
What are compasses?
Compasses are navigational tools that use the Earth's magnetic field, specifically magnetic poles, to show you what direction you're heading. Most compasses are made with a magnetic needle and some type of compass card that has the cardinal directions (north, south, east, west) listed. The exact function of a compass depends on what kind you buy, but the purpose of any compass is to show you what direction north is so that you can properly use a map for navigation and determine where to head next.
What are the different types of compasses?
The two main types of compasses are magnetic and gyrocompasses. Magnetic compasses use magnets and the Earth's magnetic poles to find magnetic north, but gyrocompasses use the power of gravity to locate true north. True north is a fixed geographical location, so gyrocompasses are always more accurate and aren't affected by external magnetic sources. Magnetic north is constantly yet slowly shifting because of the Earth's ever-changing magnetic core. However, magnetic north is still a reliable direction for compass navigation, and magnetic compass needles are accurate enough to help you find your way. Magnetic compasses are by far the most popular choice because they are an affordable alternative to GPS tools, while gyrocompasses are generally quite expensive and aren't necessary for most outdoor activities.
Magnetic compasses can come in many forms. Baseplate compasses, also known as orienteering compasses, are liquid-filled compasses that are affordable and great for plotting but lack the proper features for sighting. Card compasses, or marine compasses, are ideal for boats because they absorb the motion of the ship for easy reading. Thumb compasses are commonly used in competitive orienteering events because they rest on your thumb, leaving your hands free to read a map. Lensatic compasses have three parts: a base, reading lens, and cover. They are very durable which is why they are commonly used by the military.
Buy Compasses at OpticsPlanet
Compasses are amazing navigation tools that can cost significantly less than a GPS system, and the best part is that they don't rely on batteries or signals to get you to your destination. Shop for pocket compasses, tritium compasses, mirror compasses, and tons of other navigational gear and accessories for your professional or recreational needs at OpticsPlanet today!
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