SortStack #1602 — 2030-10-28

By size · Order from shortest to longest.

1. A house dust mite 0.3 mm

   Millions live in the average mattress, feasting on flakes of dead skin, yet they are too small for the naked eye to see.

2. A single poppy seed 1.3 mm

   It takes roughly 3,000 poppy seeds to make a single gram, which is why they scatter so easily off a bagel.

3. A tennis ball 6.7 cm

   Tennis balls are pressurised with gas and slowly go flat, which is why fresh cans hiss when opened.

4. A ten-pin bowling pin 38 cm

   Pins are coated in tough plastic and weigh just enough to scatter dramatically yet stand back up reliably.

5. A cheetah (body length) 1.2 m

   A cheetah's spine works like a spring, flexing so much that its stride can cover seven metres at full sprint.

6. The RMS Titanic 269 m

   When launched she was the largest moving man-made object on Earth, longer than most city blocks of the day.

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