SortStack #2877 — 2034-04-25

By weight · Order from lightest to heaviest.

1. 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.

2. 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.

3. A 16-inch MacBook Pro 2.2 kg

   Apple's obsession with grams runs deep: the original 1989 Macintosh Portable weighed more than three of these.

4. An adult red fox 5.2 kg

   Red foxes may use Earth's magnetic field to aim their famous pouncing dives — they prefer striking toward the northeast.

5. A whole wheel of Parmigiano-Reggiano cheese 38 kg

   Italian banks accept aging Parmesan wheels as loan collateral, storing thousands of them in climate-controlled vaults.

6. A Steinway concert grand piano 480 kg

   Each Steinway Model D takes about a year to build and contains over 12,000 individual parts.

← All puzzles · Play today’s SortStack