12-05-2008, 11:05
Steam locomotives of the Chicago and North Western Railway in the roundhouse at the Chicago, Illinois rail yards, December 1942. Roundhouses are large, circular or semicircular buildings used for servicing locomotives. Due to the advent of newer railway practices, modern roundhouses are frequently not round and are simply service facilities, although they have retained the traditional name.
Photo credit: Jack Delano.
A 360-degree spherical panorama of a beach in Marigot, Saint Martin from nine images which uses stereographic projection to create a globe. This is called the "little planet" effect, when the area close to the point opposite to the center of projection becomes significantly enlarged.
Image credit: Alexandre Duret-Lutz
source : wikipédia
Photo credit: Jack Delano.
A 360-degree spherical panorama of a beach in Marigot, Saint Martin from nine images which uses stereographic projection to create a globe. This is called the "little planet" effect, when the area close to the point opposite to the center of projection becomes significantly enlarged.
Image credit: Alexandre Duret-Lutz
source : wikipédia