Total length2,467 m
6.5 billionViolet light wavelengths
1,348Dining table lengths
Photo from Wikimedia Commons
Forth Bridge
The cantilever colossus that defines Scotland's skyline/Bridges & Tunnels
The Forth Bridge is a cantilever railway bridge over the Firth of Forth in Scotland, completed in 1890. It was the first major structure in Britain to be built from steel rather than iron, and its distinctive diamond-shaped cantilever design was a direct response to the Tay Bridge disaster of 1879. The bridge uses about 53,000 tonnes of steel and 6.5 million rivets. The phrase 'painting the Forth Bridge' became a British idiom for a never-ending task, though a modern protective coating applied between 2002 and 2011 is expected to last 25 years.
Measurements
Height above water110 m
103Baseball bats
550Corn cobs
Steel mass53 million kg
6.6 hundredthsGolden Gate Bridge masses
2 millionDalmatian dogs
1.2 millionGrocery carts
Main span521 m
145Gazebo diameters
52,100Thumb tack lengths
106Garage doors
Each of two main spans
Age4.3 billion s
1,681Lunar months
476,667Marvel movies
71.5 millionMinutes
Completed in 1890
Rivets6.5 million units
6.5Populations of small cities
823 millionthsWorld populations
73,864Piano keyboards