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Cutting on action or matching on action refers to film editing and video editing techniques where the editor cuts from one shot to another view that matches the first shot's action.] Although the two shots may have actually been shot hours apart from each other, cutting on action gives the impression of continuous time when watching the edited film. By having a subject begin an action in one shot and carry it through to completion in the next, the editor creates a visual bridge, which distracts the viewer from noticing the cut or noticing any slight continuity error between the two shots.

L'Uzege beaucoup de couleurs

The first color systems that appeared in motion pictures were additive color systems. Additive color was practical because no special color stock was necessary. Black-and-white film could be processed and used in both filming and projection. The various additive systems entailed the use of color filters on both the movie camera and projector.

The first successful subtractive color system began with Kodak's Kodachrome system. Using duplitized film, red and green records were exposed. By bleaching away the silver and replacing it with color dye, a color image was obtained.

Kodachrome, however, did not find much use in the commercial market.

Karst wellspring

What Exactly is Karst?
Karst is a landscape formed from the dissolution of soluble rocks including limestone, dolomite and gypsum. It is characterized by sinkholes, caves, and underground drainage systems . Nearly all surface karst features are formed by internal drainage, subsidence, and collapse triggered by the development of underlying caves Rainwater becomes acidic as it comes in contact with carbon dioxide in the atmosphere and the soil. As it drains into fractures in the rock, the water begins to dissolve away the rock creating a network of passages. Over time, water flowing through the network continues to erode and enlarge the passages; this allows the plumbing system to transport increasingly larger amounts of water This process of dissolution leads to the development of the caves, sinkholes, springs, and sinking streams typical of a karst landscape

Borderline

The Inner German border was the frontier between the German Democratic Republic and the Federal Republic of Germany from 1949 to 1990. Not including the similar but physically separate Berlin Wall, the border was 1,393 kilometres long and ran from the Baltic Sea to Czechoslovakia.


It was formally established on 1 July 1945 as the boundary between the Western and Soviet occupation zones of Germany. On the eastern side, it was made one of the world's most heavily fortified frontiers, defined by a continuous line of high metal fences and walls, barbed wire, alarms, anti-vehicle ditches, watchtowers, automatic booby traps and minefields. It was patrolled by 50,000 armed GDR guards. The border was a physical manifestation of Winston Churchill's metaphorical Iron Curtain that separated the Soviet and Western blocs during the Cold War.