SortStack #540 — 2027-12-01

By speed · Order from slowest to fastest.

1. A manatee cruising 4.3 km/h

   Manatees are gentle plant-eaters so buoyant they use their heavy bones as ballast to keep from floating up.

2. A record fastball pitch 169 km/h

   A 100-mile-an-hour pitch reaches home plate in under four-tenths of a second, faster than a blink of choice.

3. A Category 5 hurricane's winds 300 km/h

   A single mature hurricane can release more energy in a day than the world uses in electricity all year.

4. Concorde at cruising speed 2.2K km/h

   Concorde flew so fast that the friction heated its frame, stretching the whole plane several inches in flight.

5. A .220 Swift rifle bullet 4.4K km/h

   Among the fastest commercial rifle rounds, it leaves the barrel so quickly the bullet can melt slightly in flight.

6. A hypersonic missile 9.8K km/h

   Hypersonic weapons fly so fast and low they are extremely hard to track and intercept in time.

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