SortStack #3066 — 2034-10-31

By weight · Order from lightest to heaviest.

1. An adult house mouse 19 g

   Male mice sing ultrasonic courtship songs too high-pitched for humans to hear, with repeated phrases like birdsong.

2. A large chicken egg 57 g

   An eggshell has up to 8,000 microscopic pores, letting the developing chick breathe right through the shell.

3. A full deck of 52 playing cards 94 g

   Shuffle properly and you have almost certainly created an ordering of the deck no human in history has ever seen before.

4. A Steinway concert grand piano 480 kg

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

5. A Thoroughbred racehorse 570 kg

   At full gallop a racehorse's heart pumps roughly 240 liters of blood per minute — ten times its resting rate.

6. The Burj Khalifa in Dubai 500K t

   The world's tallest building is tall enough to watch the sunset at the base, ride the elevator up, and watch it set again.

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