What does dam stand for
Dam is a word often used to represent an artificial barrier that holds back water. Historically, it was used to hold back the water of rivers or streams so that they could be diverted into a canal to provide power for mills or factories on the other side of the barrier. In all this, the word dam is used to describe an artificial obstruction of any kind, but in modern times the word has come to be used to mean a barrier or obstruction of any size that is done intentionally to provide a useful function. Examples of dams that are used for this purpose include those used in flood control, to provide drinking water, and for the generation of hydroelectricity.
The word dam is derived from the Medieval Latin word “mira” which came to mean an obstacle or a wall by analogy with the wall of a castle. The word was also used in French to signify any obstruction, meaning that there would be limitations imposed on what could be done within a given area.
What are the different types of dams
There are five basic types of dams: embankment, arch, buttress, gravity and zoned earth. An embankment dam is made of a mass of earth when the materials used to make it are carried across a dam site on the shoulders of laborers or in a special conveyance. A buttress dam is designed with internal arches or buttresses that strengthen it against the pressure of water and serve as outlets for water. A gravity dam is a structure that hangs in midair. A zoned earth dam is built with earth deposits of varying densities depending on the depth of the water and the direction of force. In general, more costly types of dams are designed to serve as barriers against floods and for other types of use, depending on particular conditions.
1. The most basic type of dam is an embankment, which is built of natural soil and rock excavated from below the water level. Such dams are useful for irrigation or power production and serve to direct the flow of water down gradients into deep valleys, where there is sufficient storage capacity for storing water for additional uses. An embankment dam usually consists of a gouged mass using natural earth and rock that has at least two vertical faces, from which its main face extends back toward the base wall of the dam. The slopes of embankment dams are most often vertical. Embankment dams are typically used to hold back water in a reservoir and to control when that water is released downstream. When a dam contains earth, it is called an earthen dam.
How do dams work
A dam is a structure used to hold back and control water. Dams can be huge structures that stretch for miles or small embankment dams that are barely visible at the surface. The term “dam” describes any barrier used to retain water, but the word is commonly associated with large artificial barriers such as the Hoover Dam in Nevada. The purposes of a dam vary. A dam can be used to protect a river or stream from flooding, divert water for a reservoir, power mills or factories, or provide recreational facilities. The main purpose of any dam is to hold back water so that it will not overflow the top and damage the river or stream downstream. The largest dam in the world is the Three Gorges Dam on the Yangtze River in China. It is 2,335 meters (7,661 feet) long and 185 meters (606 feet) high.
The first dams were built in ancient times when people wanted to flood land so they could grow crops or collect water for drinking. People would build a wall of logs and rocks across a stream. The water would back up behind the dam until it was deep enough to be useful for farming or drinking. One of the first historical records of what is thought to be a dam was at Nineveh, in Assyria. The massive wall, built in 700 BC by King Sennacherib, is described as “a dam which withholds the waters.”
The benefits and drawbacks of dams
The benefits and drawbacks of dams vary based on the type of dam and the purpose it serves. Dams that create a reservoir can provide water for recreational uses like boating, fishing and swimming. Water from a reservoir is also important to farmers as well as communities that rely on wells. Dams can generate electricity or can be used as flood control devices by holding back water. Dams also can provide habitat for birds and fish.
Most dams are built to serve one purpose. However, there are many different types of dams. In some areas, dams provide power and can also provide water supply while controlling flooding and providing irrigation water in other areas. Some dams create reservoirs of water that can be used for recreation or for other purposes such as generating electricity. Dam safety is very important since it protects people from being killed or injured when a dam breaks. Dams can also help control floods, making it possible for crops to be planted and harvested before the flood waters come through. Dams can also provide wildlife with habitat and are important in river management, providing fish and fish habitat.
Dams have been built for many reasons, including flood control and power generation. The benefits of dams vary based on the purpose they serve. For example, dams can be used as flood control tools to prevent flooding that would damage property and people while also helping to create reservoirs for fishermen and water supply for farmers. Dams are an important part of modern society including providing electricity, irrigation water and power for homes or businesses. Because of the variety of dams, it’s important to understand and consider both their benefits and drawbacks.
Famous dams around the world
In the United States, the largest dam is the Hoover Dam in Nevada, which is designed to provide power to Las Vegas. Other famous dams around the world include the Three Gorges Dam in China and a dam in Kenya that killed over 1,200 people in 1997. That dam was called Africa’s “worst manmade disaster.” In the United States, there are thousands of dams. In California alone, there are over 7,800 dams.
One of the first dams in the United States was built in the 1830s by President Andrew Jackson. It was built to protect his plantation in Tennessee from flooding. He forced people around him to sell their land so that he could make money. About 200,000 people were forcibly removed and around one million acres of land were flooded.
The Hoover Dam on the Colorado River is located near Las Vegas, Nevada. It was built between 1931 and 1936 during President Herbert Hoover’s term as president of the United States. In 2017, President Donald Trump gave a speech in front of the dam, where he reinstated the National Space Council.