stackyFACTSPilots aren't just doing math for fun up there.
Pilots aren't just doing math for fun up there. Those massive white numbers painted on the tarmac actually drop the last digit of their magnetic compass heading. A runway marked '27' points straight west at 270 degrees. What makes this hilariously frustrating is that the Earth's magnetic poles constantly shift over time, forcing miserable airport workers to routinely scrape off the paint and renumber the runways every few decades.
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