SortStack #1707 — 2031-02-10

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. A tennis ball 6.7 cm

   Tennis balls are pressurised with gas and slowly go flat, which is why fresh cans hiss when opened.

3. A banana 26 cm

   The banana you eat is a sterile clone; nearly all exported ones are a single variety called the Cavendish.

4. The Eiffel Tower 330 m

   It grows up to 15 centimetres taller in summer because the iron expands in the heat.

5. The Grand Canyon (length) 446 km

   The Colorado River carved it over millions of years, exposing rock layers nearly two billion years old at the bottom.

6. The Great Barrier Reef (length) 2.3K km

   It is the largest living structure on Earth, built by tiny coral animals and visible from space.

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