SortStack #615 — 2028-02-14

By size · Order from shortest to longest.

1. A sesame seed 3 mm

   Sesame is one of the oldest oilseed crops, cultivated for more than 3,000 years across Africa and Asia.

2. A black peppercorn 4 mm

   Pepper was once so valuable it was used as currency and accepted to pay rent and taxes in medieval Europe.

3. 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.

4. The Washington Monument 165 m

   Look closely and the stone changes shade partway up, marking where construction paused for over 20 years.

5. Mount Fuji, Japan 3.8 km

   Though it looks serene, Fuji is an active volcano that last erupted in 1707, dusting distant Tokyo with ash.

6. The cruising altitude of Concorde 18 km

   Concorde flew so high that passengers could see the curvature of the Earth and the dark of space above.

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