Answer & explanation
The official answer, with Fermi’s reasoning step by step.
Answer & explanation
Official answer
23
iPhones
How to estimate it
Fermi’s official “Napkin math”
I have no idea how long the wingspan of an albatross is but it's probably taller than a regular person. I'm going to say 10 feet. The iPhone Duo opened is the widest iPhone but not quite as wide as an iPad, maybe six inches wide.
- Albatross, tip to tip
- ~10 ft = 120 in
- Duo opened, across
- ~6 in
- 120 ÷ 6
- ≈ 20
I have no idea how long the wingspan of an albatross is but it's probably taller than a regular person. I'm going to say 3 meters. The iPhone Duo opened is the widest iPhone but not quite as wide as an iPad, maybe 15 centimeters wide.
- Albatross, tip to tip
- ~3 m = 300 cm
- Duo opened, across
- ~15 cm
- 300 ÷ 15
- ≈ 20
Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.
Source calculation & reference
- Record wingspan (Guinness World Records)
- 3.63 m
- iPhone Duo open, long side (Apple)
- ÷ 164.6 mm
- 3,630 ÷ 164.6
- ≈ 22.05
- 22 fall 9 mm short, so it takes
- 23 iPhones
Reference cited by Fermi: Guinness World Records and Apple
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