What does a ratio of 2 : 1 look like?
Height of the `Shard` skyscraper (London) (310 m)...
: Height of Cologne Cathedral spires, Germany (157 m) ...
Length of a Boeing 747 airliner (70.7 m)...
: Length of the Millennium Falcon spaceship in the Star Wars movies (34.8 m) ...
Length of the Suez Canal (193.3 km)...
: Length of the Kiel Canal (98 km) ...
Length of US Legal page of paper (356 mm)...
: Length of a Penguin paperback book (181 mm) ...
Width of a typical Hot Air Balloon (15 m)...
: Women's World Long Jump Record (1988) (7.52 m) ...