SortStack #132 — 2026-10-19

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 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 hen's egg 5.5 cm

   An eggshell has up to 17,000 tiny pores that let the developing chick breathe through the surface.

4. The Gateway Arch, St. Louis 195 m

   Its elegant curve is a catenary, the exact shape a hanging chain makes, flipped upside down for strength.

5. The Burj Khalifa, Dubai 828 m

   It is so tall that people on the ground floor can watch the sunset, then ride up and watch it set a second time.

6. The River Thames (length) 346 km

   It was once so polluted that 1858's 'Great Stink' forced Parliament to finally build London's sewers.

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