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Automobiles and airplanes: americans on the move

Cinema was not the only major industry to make great technological strides in this decade. The 1920s opened up new possibilities of mobility for a large percentage of the U.S. population, as automobile manufacturers began to mass produce what had once been a luxury item, and daring aviators both demonstrated and drove advancements in aircraft technology. The most significant innovation of this era was Henry Ford’s Model T    Ford, which made car ownership available to the average American.

Ford did not invent the automobile—the Duryea brothers in Massachusetts as well as Gottlieb W. Daimler and Karl Friedrich Benz in Germany were early pioneers. By the early twentieth century, hundreds of car manufacturers existed. However, they all made products that were too expensive for most Americans. Ford’s innovation lay in his focus on using mass production to manufacture automobiles; he revolutionized industrial work by perfecting the assembly line, which enabled him to lower the Model T’s price from $850 in 1908 to $300 in 1924, making car ownership a real possibility for a large share of the population ( [link] ). As prices dropped, more and more people could afford to own a car. Soon, people could buy used Model Ts for as little as five dollars, allowing students and others with low incomes to enjoy the freedom and mobility of car ownership. By 1929, there were over twenty-three million automobiles on American roads.

An advertisement entitled “Watch the Fords Go By” features drawings of two Ford automobiles. The prices are listed at $780 and $725, along with details about each model. In the center of the advertisement, an illustration shows a couple driving along an idyllic country road. At the bottom is the text “Ford Cars Sold by Russell Motor Car Co. 2120-2130 Canal Street, New Orleans, LA. See Our Exhibit Booth at Show.”
This advertisement for Ford’s Model T ran in the New Orleans Times Picayune in 1911. Note that the prices have not yet dropped far from their initial high of $850.

The assembly line helped Ford reduce labor costs within the production process by moving the product from one team of workers to the next, each of them completing a step so simple they had to be, in Ford’s words, “no smarter than an ox” ( [link] ). Ford’s reliance on the moving assembly line    , scientific management, and time-motion studies added to his emphasis on efficiency over craftsmanship.

A photograph shows assembly line workers producing Ford automobiles.
In this image from a 1928 Literary Digest interview with Henry Ford, workers on an assembly line produce new models of Ford automobiles.

Ford’s emphasis on cheap mass production brought both benefits and disadvantages to its workers. Ford would not allow his workers to unionize, and the boring, repetitive nature of the assembly line work generated a high turnover rate. However, he doubled workers’ pay to five dollars a day and standardized the workday to eight hours (a reduction from the norm). Ford’s assembly line also offered greater equality than most opportunities of the time, as he paid white and black workers equally. Seeking these wages, many African Americans from the South moved to Detroit and other large northern cities to work in factories.

Ford even bought a plot of land in the Amazonian jungle twice the size of Delaware to build a factory town he called Fordlandia . Workers there rejected his midwestern Puritanism even more than his factory discipline, and the project ended in an epic failure. In the United States, however, Ford shaped the nation’s mode of industrialism—one that relied on paying decent wages so that workers could afford to be the consumers of their own products.

Questions & Answers

A golfer on a fairway is 70 m away from the green, which sits below the level of the fairway by 20 m. If the golfer hits the ball at an angle of 40° with an initial speed of 20 m/s, how close to the green does she come?
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A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance
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Chemistry is a branch of science that deals with the study of matter,it composition,it structure and the changes it undergoes
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A ball is thrown straight up.it passes a 2.0m high window 7.50 m off the ground on it path up and takes 1.30 s to go past the window.what was the ball initial velocity
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2. A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (0.20) at constant velocity by a force directed 25° above the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
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you have been hired as an espert witness in a court case involving an automobile accident. the accident involved car A of mass 1500kg which crashed into stationary car B of mass 1100kg. the driver of car A applied his brakes 15 m before he skidded and crashed into car B. after the collision, car A s
Samuel Reply
can someone explain to me, an ignorant high school student, why the trend of the graph doesn't follow the fact that the higher frequency a sound wave is, the more power it is, hence, making me think the phons output would follow this general trend?
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Nevermind i just realied that the graph is the phons output for a person with normal hearing and not just the phons output of the sound waves power, I should read the entire thing next time
Joseph
Follow up question, does anyone know where I can find a graph that accuretly depicts the actual relative "power" output of sound over its frequency instead of just humans hearing
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"Generation of electrical energy from sound energy | IEEE Conference Publication | IEEE Xplore" ***ieeexplore.ieee.org/document/7150687?reload=true
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progressive wave
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A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N applied to the string. A pulse is sent down the string. How long does it take the pulse to travel the 3.00 m of the string?
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Source:  OpenStax, U.s. history. OpenStax CNX. Jan 12, 2015 Download for free at http://legacy.cnx.org/content/col11740/1.3
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