SortStack #178 — 2026-12-04

By price · Order from cheapest to most expensive.

  1. A single supermarket tea bag $0.05

    Tea bags were popularized by accident: a New York merchant shipped samples in silk pouches, and customers dunked the whole pouch.

  2. A new hardcover bestseller $30

    Hardcovers exist partly as price discrimination: publishers sell to eager fans at a premium first, then release the cheaper paperback a year later.

  3. An Instant Pot pressure cooker $90

    The Instant Pot was invented by a laid-off Canadian telecom engineer — it became so beloved that owners formed recipe communities millions strong.

  4. A round-trip economy flight from New York to London $700

    In 1939, a one-way transatlantic ticket on Pan Am's flying boat cost $375 — several months of an average American salary at the time.

  5. New Kim, the world's most expensive racing pigeon $1.9M

    A Chinese buyer won the 2020 auction for the Belgian hen. Pigeon racing's huge prize purses in China have turned top breeding birds into seven-figure assets.

  6. Building the Large Hadron Collider at CERN $4.8B

    The LHC's 27 km ring is colder than outer space — its magnets sit at 1.9 kelvin — and it briefly held a section of the emptiest vacuum in the solar system.

← All puzzles · Play today’s SortStack