8 September 2026
Sheet #8
The five rounds of 8 September 2026, with the real sizes and what each measurement covers.
- 01
Measured Width of an ISO/IEC 7810 ID-1 card
Every bank card in the world is 85.60 × 53.98 mm.
- 02
ReferenceComputer monitor60 cm
To size upDromedary1.85 m
Measured Shoulder height of an adult dromedary
Its hump stores fat, not water.
- 03
ReferenceMotorcycle2.1 m
To size upLaptop36 cm
Measured Width of a 15-inch laptop
"15-inch" refers to the screen diagonal, about 38 cm.
- 04
ReferenceQuetzalcoatlus10.5 m
To size upTraffic light3 m
Measured Height of a road traffic light
The first electric traffic light was installed in Cleveland in 1914.
- 05
ReferenceBowling ball21.9 cm
To size upWoolly mammoth3 m
Measured Shoulder height of a male woolly mammoth
It was no bigger than a modern African elephant.