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  2. Dirt - Wikipedia

    en.wikipedia.org/wiki/Dirt

    A season of artworks and exhibits on the theme of dirt was sponsored by the Wellcome Trust in 2011. The centrepiece was an exhibition at the Wellcome Collection showing pictures and histories of notable dirt such as the great dust heaps at Euston and King's Cross in the 19th century and the Fresh Kills landfill which was once the world's largest landfill.

  3. Dirt track racing - Wikipedia

    en.wikipedia.org/wiki/Dirt_track_racing

    Dirt track racing is a form of motorsport held on clay or dirt surfaced banked oval racetracks. Dirt track racing started in the United States before World War I and became widespread during the 1920s and 1930s using both automobiles and motorcycles, spreading throughout Japan and often running on horse racing tracks.

  4. History of soil science - Wikipedia

    en.wikipedia.org/wiki/History_of_Soil_Science

    F.A. Fallou before his death in 1877. In his two books First Principles of Soil Science (1857, 2nd ed. 1865) and Pedology or General and Special Soil Science (1862) Friedrich Albert Fallou developed his collected field observations of soil into a systematic approach.

  5. History of road transport - Wikipedia

    en.wikipedia.org/wiki/History_of_road_transport

    The first improvements would have consisted largely of clearing trees and big stones from the path. As commerce increased, the tracks were often flattened or widened to accommodate human and animal traffic. Some of these dirt tracks were developed into fairly extensive networks, allowing communications, trade and governance over wide areas.

  6. Dirt cake - Wikipedia

    en.wikipedia.org/wiki/Dirt_cake

    Dirt cake, also called dirt and worms, is an American cake made from cookies and pudding in combination with other ingredients to create a dessert that has a resemblance to soil or earth. It is made by combining crushed Oreo cookies on top of vanilla or chocolate pudding , and adding gummy candy worms on top.

  7. Soap - Wikipedia

    en.wikipedia.org/wiki/Soap

    The insoluble oil/fat "dirt" become associated inside micelles, ... Liquid soap was invented in the nineteenth century; in 1865, ...

  8. History of auto racing - Wikipedia

    en.wikipedia.org/wiki/History_of_auto_racing

    The last NASCAR race on a dirt track was held on September 30, 1970 at the half-mile State Fairgrounds Speedway in Raleigh, North Carolina. From 1972 through 2003, NASCAR's premier series was called the Winston Cup Series, sponsored by R. J. Reynolds Tobacco Company cigarette brand Winston. The changes that resulted from RJR's involvement, as ...

  9. Motocross - Wikipedia

    en.wikipedia.org/wiki/Motocross

    Supercross is a cycle racing sport involving specialized high-performance off-road motorcycles on constructed dirt tracks with steep jumps and obstacles. Compared to regular motocross, supercross tracks generally have much shorter straights and tighter turns.