SortStack #788 — 2028-08-05

By duration · Order from shortest to longest.

1. One swing of a grandfather clock's pendulum 1 sec

   A pendulum about one metre long swings in almost exactly one second — a coincidence so neat it was once proposed as the definition of the metre.

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. A Formula 1 qualifying lap of Monaco 1.2 min

   Monaco is F1's slowest lap by average speed, yet drivers call it the hardest 78 corners-per-race of the year — the barriers forgive nothing.

4. Yuri Gagarin's entire Vostok 1 spaceflight 108 min

   The first human spaceflight was a single orbit — and Gagarin ejected and parachuted down separately from his capsule, landing in a potato field.

5. The Edinburgh Festival Fringe 25 days

   The world's largest arts festival stages over 3,000 shows — by ticket sales it trails only the Olympics and the football World Cup.

6. The Holy Roman Empire, from Otto the Great to its dissolution 844 years

   Voltaire quipped it was 'neither holy, nor Roman, nor an empire' — yet it lasted 844 years before Napoleon finished it off in 1806.

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