SortStack #27 — 2026-07-06

By size · Order from shortest to longest.

1. A classic incandescent light bulb 11 cm

   Its glowing filament reaches around 2,500 degrees Celsius, yet wastes most of its energy as heat, not light.

2. A sperm whale 16 m

   Its head holds the largest brain of any animal that has ever lived, weighing about as much as a small person.

3. A tower of the Golden Gate Bridge 227 m

   The bridge's 'International Orange' colour was chosen partly because it stays visible in San Francisco's thick fog.

4. The Millau Viaduct, France 2.5 km

   The tallest bridge in the world, its deck sometimes sits above the clouds that fill the valley below.

5. New Zealand's South Island (length) 840 km

   It is home to fewer than two million people but more than ten times as many sheep.

6. The Pan-American Highway (length) 30K km

   It runs almost pole to pole but for one gap: the roadless Darien jungle between Panama and Colombia.

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