SortStack #120 — 2026-10-07

By speed · Order from slowest to fastest.

1. The drift of a tectonic plate 21.9 mm/year

   Plates move about as fast as your fingernails grow, yet over millions of years they have rearranged whole continents.

2. A person jogging 10.8 km/h

   Humans are among the best endurance runners on Earth, able to outlast horses over very long distances in heat.

3. A running gray wolf 57 km/h

   Wolves can travel over 30 kilometres in a single day while hunting across their vast territories.

4. A Category 5 hurricane's winds 300 km/h

   A single mature hurricane can release more energy in a day than the world uses in electricity all year.

5. A top-fuel dragster 540 km/h

   A dragster covers a quarter mile in under four seconds, accelerating harder than a fighter jet off a carrier.

6. The speed of sound at sea level 1.2K km/h

   Sound travels faster in warm air than cold, so a thunderclap's timing shifts slightly with the weather.

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