" That justifies talking about their purpose prior to talking about their consistency. Models are used as substitutes for originals because properties of the latter are of interest and the originals are not going to be investigated themselves . There may be a number of reasons for that such as taboos preventing from studying the original itself, or inability, the involved cost in terms of resources or moral damage being intolerable, or similar. For an investigator I it makes only sense to consider an entity M as a substitute of an entity O, if I can (1) establish an analogy, similarity, or similar relation between M and O that permits the substitution of O by M with respect to purpose and means, time-horizon etc. , and (2) I can actually investigate M in the required way. That implies firstly that M does not have the properties of O that prevent I from investigating O. Also other properties of O may not be properties of M. Wholesale Model Kit In that sense a model is more abstract than its original. Secondly, a model M will in general have properties that O does not have and that actually aid I in investigating M. "

"9 L) 4 cylinder motor in a block producing 20 horsepower (15 kW) for a top speed of 45 mph (72 km/h). The engine had side valves and 3 main bearings. Recent accounts credit the default-configuration Model T with fuel economy on the order of 25 to 30 miles per gallon. Production Ford's Piquette plant could not keep up with demand for the Model T and only 11 cars were built there during the first full month of production. In 1910, after assembling nearly 12,000 Model T's, Henry Ford moved the company to the new Highland Park complex. The Model T was the first automobile mass produced on assembly lines with completely interchangeable parts, marketed to the middle class. To speed assembly, between 1915 and 1925 it was only available in one color, black. Desert Kit Model Plastic Storm Black paint was also cheaper and more durable. Henry Ford is reputed to have made the statement "Any customer can have a car painted any color that he wants so long as it is black. "