The horizon

The horizon

Imagine a flat plain with no natural landmarks. How far can we see? Where is the furthest visible point? Let's calculate it!

02:14

Nature

Keywords

horizon, Earth, watercraft, building, geometry, discovery, science, nature study, nature

On-screen labels

line of the horizon, cross-section of the Earth, R = 6372 km, 170 cm, 160 cm, 0 cm, a ≈ 4,5 km, Burj Khalifa
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