SortStack #133 — 2026-10-20

By weight · Order from lightest to heaviest.

1. An iPhone 15 Pro 187 g

   Its titanium frame is the same alloy grade used in spacecraft and joint implants, trimming heft from earlier steel models.

2. A McDonald's Big Mac 220 g

   The Economist uses Big Mac prices to compare currency values worldwide — the famously tongue-in-cheek 'Big Mac Index'.

3. A Holstein dairy cow 680 kg

   A productive dairy cow gives about 30 liters of milk a day — and burps enough methane to matter in climate accounting.

4. An adult hippopotamus 1.5 t

   Hippos cannot actually swim — they sink and gallop along the riverbed, surfacing to breathe every few minutes.

5. An adult male Asian elephant 4 t

   You can tell it from its African cousin by the much smaller ears and the twin domes on its forehead.

6. General Sherman, the giant sequoia in California 1.3K t

   Earth's largest single tree by volume is still growing, adding roughly a good-sized ordinary tree's worth of wood every year.

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