SortStack #1834 — 2031-06-17

By weight · Order from lightest to heaviest.

1. A single grain of long-grain rice 25 mg

   Rice feeds more than half the world's population, and farmers cultivate over 100,000 distinct varieties of it.

2. A AA alkaline battery 24 g

   Billions of AA cells are produced worldwide every year, making it the planet's most popular battery size.

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. An adult brown rat 350 g

   Rats emit ultrasonic giggles when tickled and come back for more — research that helped earn an Ig Nobel Prize.

5. A full-size kitchen refrigerator 135 kg

   Refrigeration changed cuisine more than almost any invention; Einstein even co-patented a fridge with no moving parts in 1930.

6. The Eiffel Tower 10.1K t

   The iron grows in summer: heat expands the sun-facing side, leaning the top away from the sun and adding around 15 cm of height.

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