30 September 2026
Sheet #30
The five rounds of 30 September 2026, with the real sizes and what each measurement covers.
- 01
ReferenceTennis ball6.7 cm
To size upDinner plate26 cm
Measured Diameter of a dinner plate
Plates have grown by several centimetres over the past century.
- 02
ReferenceCity bike1.75 m
To size upWatermelon30 cm
Measured Length of a common watermelon
It is more than 90% water.
- 03
ReferenceSaguaro cactus12 m
To size upReticulated python6 m
Measured Length of an adult reticulated python
It is the longest snake in the world.
- 04
ReferenceOstrich2.4 m
To size upChrist the Redeemer30 m
Measured Height of the Christ the Redeemer statue, excluding its pedestal
Its open arms span 28 m, almost as much as its height.
- 05
ReferenceTaj Mahal73 m
To size upTGV trainset200 m
Measured Length of a TGV Duplex trainset
Two coupled sets make a 400 m train, longer than the Eiffel Tower laid down.