SortStack #2023 — 2031-12-23

By weight · Order from lightest to heaviest.

1. A single drop of water 50 mg

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

2. The Hope Diamond 9.1 g

   The famous blue gem glows an eerie red-orange for minutes after exposure to ultraviolet light — a quirk of trace boron inside.

3. 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.

4. A Harley-Davidson Road King motorcycle 365 kg

   Harley once tried to trademark its V-twin engine's 'potato-potato' exhaust rumble, then dropped the case in 2000.

5. A fully equipped fire engine 18 t

   Around 2,000 liters of onboard water account for a chunk of the heft — plus ladders, hoses, and hydraulic rescue tools.

6. The RMS Titanic 52K t

   Each of her giant anchors needed a team of 20 horses to haul through the streets of Belfast to the shipyard.

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