SortStack #3226 — 2035-04-09

By size · Order from shortest to longest.

1. A human red blood cell 8 µm

   Your body makes around 2 million of them every second to replace the ones that wear out after roughly 120 days.

2. A golf ball 4.3 cm

   A golf ball has 300 to 500 dimples; they cut drag and roughly double how far a struck ball will fly.

3. A concert grand piano 2.7 m

   A grand piano's strings pull with a combined tension of around 20 tonnes, held by a single cast-iron frame.

4. A Boeing 737 airliner 34 m

   The 737 is the best-selling jet airliner in history, with one taking off somewhere on Earth every few seconds.

5. The Mariana Trench (depth) 11 km

   If Everest were dropped into it, the peak would still sit more than two kilometres below the surface.

6. The Great Wall of China (total length) 21.2K km

   Contrary to the popular myth, it cannot actually be seen from the Moon with the naked eye.

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