SortStack #749 — 2028-06-27

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 single drop of water 50 mg

   Pharmacists standardized the 'drop' centuries ago: twenty drops make roughly one milliliter.

3. A monarch butterfly 500 mg

   Despite weighing less than a paperclip, monarchs migrate up to 4,800 km from Canada to mountain forests in central Mexico.

4. A ruby-throated hummingbird 4 g

   It crosses the Gulf of Mexico nonstop — about 800 km — burning nearly half its body fat in a single 20-hour flight.

5. 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.

6. An Ohio-class nuclear submarine, submerged 18.8K t

   It displaces more than some WWII aircraft carriers and can stay underwater for months, limited mainly by the food supply.

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