This gigantic steam-driven pump was scaled up from an 18th century Cornish
pump used to remove water from deep mines.
This machine at Cruquius has the largest cylinder diameter of any steam-pump in the world:
144".
Around 1850, three of these pumps were installed to lift water up
out a huge lake in the
Dutch lowlands.
After three years, the region was dry, creating polders of rich
agricultural soil.