SortStack #1737 — 2031-03-12

By speed · Order from slowest to fastest.

1. A casual cyclist 12.5 km/h

   The bicycle is one of the most efficient machines ever made, turning muscle into distance better than walking.

2. A galloping zebra 66 km/h

   No two zebras have the same stripe pattern, which may help them recognise each other and confuse biting flies.

3. A fast cricket delivery 161 km/h

   The fastest bowlers can make the ball rise off the pitch toward a batter's head in a fraction of a second.

4. A racing snowmobile 190 km/h

   Snowmobiles can cross frozen lakes so fast they sometimes skip right across patches of open water.

5. The core of a jet stream 442 km/h

   Pilots ride these high-altitude winds to save fuel, which is why eastbound flights are often much quicker.

6. The land-speed record car 1.2K km/h

   ThrustSSC became the first car to break the sound barrier, its twin jet engines kicking up a desert dust storm.

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