SortStack #2149 — 2032-04-27

By weight · Order from lightest to heaviest.

1. A single grain of table salt 60 µg

   Salt crystals are near-perfect cubes because sodium and chloride ions lock into a rigid lattice — about a million grains fit in one cup.

2. A brilliant-cut one-carat diamond 200 mg

   The carat unit comes from carob seeds, which ancient gem traders used as counterweights on their balance scales.

3. A McDonald's Big Mac 220 g

   The Economist uses Big Mac prices to compare currency values worldwide — the famously tongue-in-cheek 'Big Mac Index'.

4. A round loaf of sourdough bread 800 g

   Some sourdough starters are family heirlooms over 150 years old, kept alive by daily feedings of flour and water.

5. An adult North American beaver 20 kg

   The largest beaver dam ever found, in Alberta, Canada, stretches about 850 meters and is visible from space.

6. The London Eye observation wheel 2.1K t

   It was meant to stand for just five years when it opened in 2000; instead it became the UK's most popular paid attraction.

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