SortStack #2094 — 2032-03-03

By speed · Order from slowest to fastest.

1. A slowly marching sand dune 20161.8 mm/year

   Wind pushes desert dunes forward grain by grain, swallowing roads and even villages over the decades.

2. A crawling baby 1.4 km/h

   Babies often invent their own crawling styles, from the classic hands-and-knees to a one-legged commando shuffle.

3. A mosquito in flight 2.4 km/h

   Only female mosquitoes bite; they need a blood meal to develop their eggs, while males sip flower nectar.

4. A wild boar running 45 km/h

   Wild boars are spreading across the globe, rooting up so much soil they reshape entire ecosystems.

5. Concorde at cruising speed 2.2K km/h

   Concorde flew so fast that the friction heated its frame, stretching the whole plane several inches in flight.

6. A meteor entering the atmosphere 50K km/h

   Most shooting stars are no bigger than a grain of sand, burning up bright from sheer speed alone.

← All puzzles · Play today’s SortStack