Neil deGrasse Tyson @neiltyson
During Ramadan, daytime fasting for Muslims ends at sunset. But for Dubai’s Burj Khalifa, the tallest building in the world, the Sun sets four minutes later at the top than at the bottom. High-floor dwellers see beyond the ground-level horizon, farther along Earth’s curvature. https://t.co/nQFjtNObJE — PolitiTweet.org
