So THAT'S What The Numbers On Airport Runways Mean

Another great mystery of air travel is solved. 
There’s a fascinating explanation for those giant numbers and letters you see on the ends of airport runways: They provide some very handy direction for pilots, as explained in the video above from Business Insider. 
The numbers are always between 1 and 36, and the difference between the numbers on either end of the same runway is always 18. Sometimes, they’re followed by a letter with a meaning all its own, and sometimes, they change based on the earth’s magnetic north. 
Watch above for the riveting rundown. -- This feed and its contents are the property of The Huffington Post, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.

Source: Science - The Huffington Post - June 12, 2017 Category: Science Source Type: news