SortStack #2680 — 2033-10-10

By size · Order from shortest to longest.

1. A single grain of pollen 40 µm

   Pollen grains have survived intact for millions of years, letting scientists reconstruct ancient forests from lake-bed sediment.

2. A common garden ant 5 mm

   Ants can lift objects many times their own weight thanks to their tiny size and the physics of scale.

3. A skateboard 79 cm

   The kicktail that makes tricks possible was a 1970s accident that turned skating into an aerial sport.

4. 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.

5. The Eiffel Tower 330 m

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

6. The Mississippi River (length) 3.7K km

   A raindrop falling at its source takes about 90 days to drift all the way down to the Gulf of Mexico.

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