SortStack #3105 — 2034-12-09

By duration · Order from shortest to longest.

1. A camera speedlight flash firing at full power 1 ms

   At low power settings, flash bursts get even shorter — down to around 1/30,000 of a second, fast enough to freeze a bursting balloon mid-pop.

2. A single blink of the human eye 348 ms

   We blink around 15-20 times a minute, and the brain edits out the darkness — you're effectively blind for about 10% of your waking hours.

3. 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.

4. The Wright brothers' first powered flight 12 sec

   The 1903 flight covered just 36.5 metres — shorter than the wingspan of a Boeing 747. Within 66 years, humans were on the Moon.

5. The Western Roman Empire, from Augustus to its fall 501.9 years

   After the West fell in AD 476, the Eastern half carried on for nearly a thousand more years as the Byzantine Empire.

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.

← All puzzles · Play today’s SortStack