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Holy crap. Someone won the Texas Lotto -- to the tune of $95 million -- by buying every combination of number available. They apparently invested approximately $25.8M to accomplish that. (Paywall busted below) https://archive.is/etkX9
TIL airport runway numbers are named for the direction in which they point:
- Take the runway number, multiply by 10
- That angle is the direction of the runway
So runway 9 points due east (90°) and runway 27 due west (270°).
The same physical runway will change numbers if they switch the direction of traffic.
#Airport #Airplanes #Math https://en.wikipedia.org/wiki/Runway