SortStack #3352 — 2035-08-13

By size · Order from shortest to longest.

1. An acoustic guitar 99 cm

   The guitar's hollow body acts as an amplifier, resonating the strings' vibration into the air around it.

2. A one-person kayak 3.4 m

   The kayak was invented by Arctic peoples thousands of years ago, sealed with animal skin to stay watertight.

3. A wooden utility pole 18.5 m

   Most are pressure-treated with preservatives so they can stand outdoors for 40 years or more without rotting.

4. Mount Everest 8.8 km

   Its summit is made of marine limestone, lifted from an ancient seabed, so the top of the world was once underwater.

5. The Grand Canyon (length) 446 km

   The Colorado River carved it over millions of years, exposing rock layers nearly two billion years old at the bottom.

6. Great Britain, Land's End to John o' Groats 970 km

   The classic end-to-end journey covers roughly 1,400 kilometres by road, a favourite challenge for cyclists and walkers.

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