glimpse: 3.6√h | To me, no distance on earth is greater and yet more tangible than an ocean’s horizon. Without obstructions, the eyes seem to wander endlessly far, yet, without obstructions, endlessly far is just a beeline away. No turns, no zigzagging – New York vis-à-vis Lisbon if it wasn’t for atmospheric distortion and this little formula acknowledging the globe’s bulged belly: 3.6√h. Put in your eye level for h and you’ll see how little you actually see: at sea level, your horizon will be less that 5 km away, unless you are a giant. A person of 1.70 m, standing on a 10 m cliff, will be looking at 12 km. Even climbing an ocean front Everest wouldn’t get you past the 340 km mark. On the bright sight, if you ever wondered what’s beyond the horizon, your answer might be nearer than you think. And, on the very bright sight, the stars on any clear night are witnesses to your eyes’ phenomenal vision: after all, you’re able to see something that is light-years away – trillions of kilometers – as long as the light source is big or strong enough.