SortStack #167 — 2026-11-23

By size · Order from shortest to longest.

1. A single E. coli bacterium 2 µm

   About 2 micrometres long, E. coli divides every 20 minutes, so one cell can become billions inside a single day.

2. An almond 2.4 cm

   Almonds are seeds of a fruit related to peaches, and raw bitter ones naturally contain traces of cyanide.

3. An average adult human 1.8 m

   Humans have grown roughly 10 centimetres taller on average over the past 150 years thanks to better nutrition.

4. A one-person kayak 3.4 m

   The kayak was invented by Arctic peoples thousands of years ago, sealed with animal skin to stay watertight.

5. The Strait of Gibraltar (narrowest width) 14.4 km

   It is so narrow that on a clear day you can see Africa from Europe across the water.

6. The Yellow River, China (length) 5.5K km

   Nicknamed 'China's Sorrow', its devastating floods have killed more people than perhaps any other natural feature.

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