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The Lombard Steam Log Hauler, patented 21 May 1901, was the first successful commercial application of a continuous track for vehicle propulsion. [ 1 ] [ 2 ] [ 3 ] The concept was later used for military tanks during World War I and for agricultural tractors and construction equipment following the war.
Track segments (i.e., trackshoes) that incorporate grouser bars are known as grouser shoes, and typically include one to three grousers. [3] Grousers are commonly used on construction vehicles such as bulldozers, loaders, and excavators. Grousers may be permanently attached to, or formed as a single piece with, the track shoe, or they may be ...
Model car, for use on a toy racing track Slot car, a powered miniature auto or other vehicle that is guided by a groove or slot in the track on which it runs; Safety car or pace car, a car which limits the speed of competing vehicles on a racetrack during caution period or parade lap; Track day car, a road car designed solely or principally for ...
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ROCKFORD, Ill. (WTVO) – It’s been 34 years since Macaulay Culkin’s character, Kevin McCallister, made a trip to the supermarket for supplies in the 1990 Chris Columbus film “Home Alone ...
Tracked vehicles spread the ground pressure exerted on the ground by the weight of the vehicle across the whole vehicle length, reducing the ground pressure per surface area and preventing a vehicle from sinking in soft soil. However, conventional dual-track vehicles can steer only by differential steering. Doing so applies friction on the ...
President Joe Biden ordered a national day of mourning in January and flags to be displayed at half-staff following President Jimmy Carter's death.
Donald Trump's former Treasury secretary, Steven Mnuchin, said he will not seek to join the president-elect's new administration but is ready to offer advice to his successor, including on how to ...