What Are Cardinal Directions?
Cardinal points refer to the primary set of four main directions used worldwide. We call them North, East, South, and West. They are popularly known by their initials N, E, S, and W respectively. The North and South refer to the Earth's two magnetic poles, while the East and West refer to its rotation on its axis.
What are the Locations?
Starting from the North at the top, each cardinal direction is located at an equal distance of 90 degrees. Moving clockwise from the North, first comes the East and then the South and the West.
You can use the Sun's movement to determine cardinal directions because the Sun always rises in the East and sets in the West. To figure out your directions, point your left arm hand towards the Sun in the East. The west is in the exact opposite direction of your left arm. You are currently facing the South, and the North is at your back.
A compass can also be used to point out the directions. It is a tool with a magnetic needle that shows the cardinal directions. The magnetic needle of the compass aligns with the point at the magnetic field of Earth, which is almost in the North. (There is a slight difference between the Earth's magnetic North and the geographic North Pole because of rotation).
Why Are They Called Cardinal Points?
The word cardinal is used to represent a whole number, not a number that lies in between. For example, 1, 2, 3, and 4 are whole numbers, while the numbers 1.5, 2.5, and 3.5 lie between those whole numbers. Similarly, East, West, North, and South are the exact directions without any deviation, compared to the directions like Northwest and Southeast that lie in between.
Difference between Cardinal & Ordinal/Inter-cardinal Points
Between two cardinal points lies a set of ordinal points. There are two categories of ordinal points: primary and secondary.
Primary ordinal points lie at equal distances between the cardinal points. For example, the Northwest lies halfway between the North and the West. There are four primary ordinal points Northeast, Southeast, Northwest, and Southwest.
Secondary ordinal points lie between each cardinal and primary ordinal point. There are eight secondary ordinal directions, including West Northwest (WNW), North-Northwest (NNW), North-Northeast (NNE), East-Northeast (ENE), East-southeast (ESE), South-Southeast (SSE), South-Southwest (SSW), and West-Southwest (WSW).
Why Do We Use Them?
Cardinal directions are a universal means of navigation. They help us know where we stand (current location) and how to reach a different place from there.
Cardinal directions become the base for creating and using maps, compass, and other navigational tools. We need the tools integrated with cardinal directions for outdoor activities like camping, trekking, backpacking, and hiking. They can even become a lifesaver for someone stranded in an unfamiliar place. Therefore, everyone should learn how to determine the cardinal directions and use navigational tools.