Nissen hut
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The Nissen hut is a prefabricated shelter that consists of a sheet of corrugated steel bent into half a cylinder and planted in the ground with its axis horizontal. The semicircular ends are closed with masonry walls. It was developed for the British military by Peter Norman Nissen, a Canadian mining engineer, in 1916.
Transport and storage
Because the curved sheets can be cupped one inside another, the space needed to transport or store several curved sheets is little more than the space needed to store one.
Earthquake
Because the Nissen hut has no weak right angle bends between walls, rooves and ground, its circular shape is likely to be very strong in earthquakes.
See Also
The Quonset hut, based on the Nissen hut, was developed by the US Navy in World War 2.Template:Arch-stub