SortStack #2342 — 2032-11-06

By duration · Order from shortest to longest.

1. A single sneeze, from sharp inhale to achoo 1.5 sec

   A sneeze can launch droplets several metres, and you can't sneeze with your eyes open without effort — the blink is part of the reflex.

2. Usain Bolt's 100 m world record run 9.6 sec

   Bolt ran 9.58 in Berlin 2009, hitting a top speed of 44.7 km/h — faster than the speed limit on many city streets.

3. One year on Mercury (a full orbit of the Sun) 88 days

   Mercury's spin is so slow that a single sunrise-to-sunrise day there lasts about two of its years — you could outwalk its sunset.

4. The construction of the Sydney Opera House 14 years

   Planned as a four-year, $7 million project, it took fourteen years and $102 million — and its architect left Australia before it opened, never returning.

5. The time since humans invented the wheel 5.5K years

   Potter's wheels came before wheels for transport — and the oldest wooden wheel ever found, near Ljubljana, is about 5,150 years old.

6. How long Jericho has been continuously inhabited 10.8K years

   Among the world's oldest cities, Jericho's stone tower predates pottery itself — people built monuments before they made bowls.

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