SortStack #1117 — 2029-06-30

By duration · Order from shortest to longest.

1. One heartbeat of a hummingbird in flight 48 ms

   Hummingbird hearts can hit 1,260 beats per minute in flight, then crash to about 50 at night when the bird enters a hibernation-like torpor.

2. A Venus flytrap snapping shut on a fly 102 ms

   The plant can count: it only snaps after two trigger-hair touches within about 20 seconds, which keeps it from wasting energy on raindrops.

3. One full revolution of a helicopter's main rotor 150 ms

   Main rotors spin at only a few hundred rpm, but the blade tips travel so fast they approach the speed of sound — the source of that thudding chop.

4. Sunlight travelling from the Sun's surface to Earth 8.3 min

   If the Sun vanished right now, we'd keep seeing it — and orbiting it — for another 8 minutes and 20 seconds before noticing anything.

5. An evening at Wagner's opera 'Götterdämmerung', intervals included 5.5 h

   It's only the finale: the full Ring cycle spans four operas over about 15 hours of music, and devotees attend all four nights in a row.

6. Rio de Janeiro's Carnival, official festival period 5 days

   Around two million people hit the streets per day, and the samba school parade is a fierce contest judged on dozens of criteria.

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