Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: Hoover dam case study
The Hoover Dam
Out in the middle of no where, an hour drive away from Las Vegas, NV lies one of the biggest dams and power plants in the world. Built in the heart of the depression, it serves as more than just a barrier from water to pass through. The concrete poured into the walls of Hoover Dam, are made by the sweat and blood of hundreds of Americans who were looking to save themselves, and their families.
Residing on the Colorado River, the Hoover dam rises out of no where. Downstream from the Grand Canyon, this structure is almost as impressive as the Grand Canyon. With its towering height, and awesome power output, it is almost inconceivable that the technology required to build such a structure would have been around in the 1930’s.
In the 1930’s in America, you were lucky if you had a job. Jobs were few and far between, and the money that you would make wouldn’t go very far. An ingenious plan to get workers to come out to the desert to work was already in the makes. Letters were posted in major cities, and soon everyone knew about the Dam project that was going to be undertaken in the middle of the desert. People came out in droves to want to work on this project. With the pay being moderately good, and it being a couple thousand more jobs for unemployed America, this was perfect to try and upstart the economy.
As soon as construction was started in 1931, a bunch of the workers had already started to move to sites closer to the dam construction site. Soon, all of the workers had settled in a spot, not too far from the construction site called Boulder City. Boulder City was a very impressive town. The people who lived there quickly formed bonds with each other, and started to build public houses such as churches. The towns people started a news paper, and soon without much at all, the town turned into the only town where everyone had an income in America. The biggest problem with the town was that there was complete chaos with the finances and the economic startup in the town. There was one company, who until 1933 when scrip payments were made illegal, was the only company where dam workers could go to cash their paychecks and spend them. This forced all of the entrepreneurs who were trying to sell items that people need, but were being forced to buy at the other store to lose money. Soon, ...
... middle of paper ...
...lems in the south west would be resolved. Luckily, many engineers already had the answer to our problems. Turbines were used to make the electricity from the falling of the water. Much like an electrical motor gone backwards, the turbines were very useful. They consisted of a motor, which was inside of a magnetic field. The rotating of a motor in a magnetic field resulted in an alternating electrical current. Due to the monstrosity of the turbines, a lot of electricity was able to be generated. The electrical output of the seventeen turbines used is over 4 billion kilowatt hours. This is a lot of electricity being put out by the falling of water through this dam. This power is used primarily in California, Nevada, and Arizona.
This impressive engineering marvel still stands today to give power to the southwest, along with helping the farming community in the southwest. If this structure hadn’t been created, who knows what Las Vegas would be today or even if there would be anyone living in California. America would have been a significantly different place without the construction of this dam. It is one of the greatest engineering achievements of the 20th Century.
In December 1936 the United States Department of the Interior authorized the Lower Colorado River Authority to construct a low dam at the site of an old crossing on the river known as Marshall Ford. Marshall Ford Dam was completed in 1941 through the collaboration of the United States Bureau of Reclamation (USBR) and the Lower Colorado River Authority (LCRA) of Texas. The original purpose of the dam was to prevent floods from devastating Austin, TX. The capital city had substandard heavy damage from previous floods since its establishment in 1846. Soon bureaucrats came together to create the Colorado River Project, wanting to create a series of dams along the Colorado River to create hydroelectric power and serve to control floods and droughts. With Buchanan dam well under way with a total of six planned Marshall Ford was the only dam designed primarily for flood control and the only dam in which USBR oversaw construction. With money scarce there was debate over the final height dam and it reservoir capacity. This issue resolves itself with the flood of 1938. Once completed Marshall Ford Dam would flood 65 miles of the Colorado to form Lake Travis, creating the largest of the seven reservoirs known as the Highland Lakes.
The article “Hydropower as a Renewable Energy Source” (n.d.) shows that man-made dams make up seventy-five percent of the United States’ total renewable energy.
The one feature common to the Hoover Dam, The Mississippi river and the three gorges dam is that they all tried to control nature’s swings, specifically in the form of flooding. Before the Hoover dam was built, the Colorado river “used to flood spectacularly…but after 1900 the Colorado provoked a vehement response” (Pg 177). The response was simple, but large. The U.S. built several large dams, including the Hoover dam, on the Colorado to decrease its flooding and increase power and irrigation. Unfortunately, just as human control of the Colorado’s flooding increased, its organisms and habitats were detrimentally influenced, and the water became more and more salinated.
The negative aspects of Glen Canyon Dam greatly exceed the positive aspects. The dam’s hydroelectric power supply is only three percent of the total power used by the six states that are served by the facility. There is a surplus of power on the Colorado Plateau and with more and more power-plants being created in the western hemisphere, Glen Canyon Dam’s power is not needed (Living Rivers: What about the hydroelectric loss). Although the ‘lake’ contains twenty seven million acre feet of water, one and a half million acre feet of water are lost yearly due to evaporation and seepage into the sandstone banks surrounding the ‘lake’ (Living Rivers: What about the water supply?). The loss of that much “water represents millions, even billions of dollars” (Farmer 183). If the government were to employ more water efficient irrigation practices, as much as five million acre feet of water per year could be saved.
The South Fork Dam collapsed and unleashed 20 million tons of water from its reservoir. A wall of water, reaching up to 70 feet high, swept 14 miles down the Little Conemaugh River Valley, carrying away steel mills, houses, livestock and people. At 4:07 p.m., the floodwaters rushed into the industrial city of Johnstown, crushing houses and downtown businesses in a whirlpool that lasted 10 minutes. (New York Times, 1889).
In the 1898 mayoral election, Frederick Eaton was elected as mayor of Los Angeles; and appointed his associate, William Mulholland- the superintendent of the newly created Los Angeles Department of Water and Power. Eaton and Mulholland envisioned a region of Los Angeles that would make Los Angeles become the turn of the century. The limiting factor of that regions growth was water supply. Eaton and Mulholland realized that the Owens Valley had a large amount of runoff from the Sierra Nevada, and a gravity-fed aqueduct that could deliver the Owens water to Los Angeles. During the early 1900’s the United States Bureau of Reclamation made plans to build an irrigation system to help the farmers of the Owens Valley. By 1905, through purchases, and alleged intimidation and bribery, Los Angeles purchased enough water rights to enable construction of the aqueduct.
McCullough explains how Johnstown became an example of ‘The Gilded Age’ industrialization prior to the 1889 disaster. The canal made Johnstown the busiest place in Cambria County in the 1820s. By the 1850s the Pennsylvania Railroad and the Cambria Iron Company began, and the population increased. There were about 30,000 people in the area before the flood. The Western Reservoir was built in the 1840s, but became generally known as the South Fork dam. It was designed to supply extra water for the Main Line canal from Johnstown to Pittsburgh. By saving the spring floods, water could be released during the dry summers. When the dam was completed in 1852, the Pennsylvania Railroad completed the track from Philadelphia to Pittsburgh, and the canal business began its decline. The state offered to sell the canal, the railroad company bought it for the right of ways yet had no need to maintain the dam, which due to neglect, broke for the first time in 1862. McCullough stresses that man was responsible for the...
Farming was the major growing production in the United States in the 1930's. Panhandle farming attached many people because it attracted many people searching for work. The best crop that was prospering around the country was wheat. The world needed it and the United States could supply it easily because of rich mineral soil. In the beginning of the 1930's it was dry but most farmers made a wheat crop. In 1931 everyone started farming wheat. The wheat crop forced the price down from sixty-eight cents/ bushels in July 1930 to twenty-five cents/ bushels July 1931. Many farmers went broke and others abandoned their fields. As the storms approached the farmers were getting ready. Farmers increased their milking cowherds. The cream from the cows was sold to make milk and the skim milk was fed to the chickens and pigs. When normal feed crops failed, thistles were harvested, and when thistles failed, hardy souls dug up soap weed, which was chopped in a feed mill or by hand and fed to the stock. This was a backbreaking, disheartening chore, which would have broken weaker people. But to the credit of the residents of the Dust Bowl, they shouldered their task and carried on. The people of the region made it because they knew how to take the everyday practical things, which had been used for years and adapt them to meet the crisis.
Dams made from dirt are very weak and the South Fork dam was built entirely with dirt. From an engineering standpoint dams made with dirt needed to be built ...
In the early 20th century, California became the battle grounds of one of the most famous water wars in U.S. history. It was the dawn of progress for the city of Los Angeles but progress requires an exorbitant amount of money and resources. Unfortunately for the citizens of Owens valley, the leaders of the growing city would target the river that provided thousands of ranchers with water as their primary source for water.
The Grand Coulee Dam would provide many jobs for the unemployed as well as be used in the upcoming war. It was used primarily for irrigation at first, but as the war progressed it was changed to produce more electricity for the Northwest's aluminum industry.
Psychologists have studied, in the recent years, about being accepted or being popular in the adolescent years of a person’s life. This research has led them to an interesting question: how does aggression affect popularity or being accepted socially by others? Aggression is an act that may be considered negative when used in most cases. Crick and Grotpeter in 1995 defined aggression “as behaviors to hurt or harm others” (Crick & Grotpeter, 1995, p.710). There are two main types of aggression: relational aggression and overt/psychical aggression. Relational Aggression is “harming others through purposeful manipulations and damage of their peer relationships,” while Overt aggression is “harming others through physical aggression, ...
Country to country, person-to-person, human trafficking is becoming a bigger and bigger issue all across the globe, including right here in the United States. Human trafficking is said to be a form of modern-day slavery, subjecting its victims to commercial sex, debt bondage, and forced labor through force, fraud, or coercion. There are often no easily identifiable victims as they come in all ages, genders, and races. There are said to be at least 2.4 million victims of human trafficking across the globe at any given time, leading to profits of $32 billion for the criminal masterminds behind such trafficking operations, making it the second most lucrative criminal industry behind narcotics. Despite the abundance of victims, it is estimated that fewer than 30% of all countries report at least 10 trafficking convictions a year, and 20% of countries do not even have an offense for trafficking. An additional 20% of countries have an offense for trafficking but still report no convictions of the offense. Without an organized coalition to help prevent such atrocities, it is left up to national governments to come up with solutions for their respective nations, and many governments do not possess the know-how or effort needed to combat these crimes.
What is human trafficking? “Human trafficking is when a person is recruit harbored, provided or obtained for the purposes of exploitation—often sold as an object”(Goldberg 1). “According to Atilade, human trafficking which is defined as the trade of humans through force deals with fraud or coercion to exploit the victims for forced labor, sexual exploitation, or both”
Uber needs to focus its entry into densely populated areas of Canada lacking a well developed public transit system. These opportunities can easily be taken advantage of if Uber was to further develop its existing strengths.