SortStack #3325 — 2035-07-17

By weight · Order from lightest to heaviest.

1. A modern US penny 2.5 g

   Pennies have been mostly zinc since 1982 — only the thin outer coating is actually copper.

2. A one-euro coin 7.5 g

   Its two-metal design is not just style — the distinct layers give vending machines an electromagnetic signature to verify.

3. A AAA alkaline battery 11.5 g

   Despite the tiny package, a fresh AAA stores enough energy to hoist an adult human several meters into the air.

4. An adult Chihuahua 1.8 kg

   The world's smallest dog breed is named after a Mexican state and descends from the Techichi, a companion dog of the Toltecs.

5. An adult male wild boar 90 kg

   Wild boars are thriving so well they have spread or been introduced to every continent except Antarctica.

6. Howard Hughes' Spruce Goose flying boat 113 t

   It held the record for largest wingspan of any aircraft until 2019, yet flew exactly once, in 1947 — for about 26 seconds.

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