what is difference between Dams and barrages?
450500
dams aim to receipt the surplus water at the rainy seasom so it's water can utilize at dry season. The utilizing to change the natural distribution water to demand condition. And other used such as generating a generator to produce electric.\n\nBArrages created just to boosting up the water level or face irrigate so the water can irrigating the longest place that we designed.
382738
They are planning some new dams in some very exotic locations in South America.  The climate of equatorial regions may have some interesting affects on dam materials.
632058
C\nTotal discharge of a (river) system is determined by its  total volume dividd by a time constant.  Just as a car has a speed (miles per hour), the discharge of a river has a volume per second (or day, or year, etc.), which measured in scientific units is cubic meters per second (m^3*s^-1). Thus, C is the closest answer, although it omits the needed time interval to describe a total flow.
592158
A dental dam also known as a rubber dam is a material used to isolate a tooth or several teeth for a dental procedure.... most commonly used during a root canal.
340925
compare electricity to water, and compare current to a river.\n\nstatic electricity is electricity, but has no current, much like a pond is made of water, but it tends to stand still. Current is the concerted flow of both water and electricity. As electricity flows through a wire, it is much like water flowing through a pipe. \n\nyou can compare voltage to the water pump. The larger the voltage/water pump, the stronger and/or faster the flow.
365224
A river levee would form a bank to hold flowing water out of low-lying areas and guide it on a man-made path.  A lake levee would be called an earthen dam or a dike and its purpose would be to collect and hold water in a man-made stationary pool - preventing it from flowing away into areas lower than the desired level of the pool.
879509
All dams have various levels of natural strength and safety. All types of dams have also suffered catastrophic failures.\nThe best example I can give you of a concrete dam failure is the St. Francis Dam in southern California, 1928. It was a concrete Gravity Arch dam about 200 feet high. It failed under a full reservior, due to the re-activation of an ancient landslide that composed the dam's left abutment. However, it's twin sister, the Hollywood (Mulholland) Dam, after retrofitting in the early 1930's, has stood strong to this day.\nEarthen dams have also failed, such as the Teton Dam in the 1970's.\nThe Van Norman Dam in the San Fernando Valley (rolled earth fill dam) collapsed during the 1971 Sylmar quake, but didn't fail. It held it's water long enough for emergency crews to lower the water level to a safe point, saving many lives and homes.\nThe biggest safety concerns for concrete dams are:\n1. Is the concrete of sufficient strength, with a well-cleaned aggregate?\n2. Is the foundation sound?\n3. What kind of siesmic activity can be expected in the area?\n4. Are there sufficient seepage galleries and grout curtains to control excess water and prevent piping?\n\nIf you're comparing concrete dam types, I'd say an arch dam is at least as safe as a concrete gravity dam (such as Shasta) provided it has firm rock to brace against.\n\nBasically, a dam is a wall that creates an entire lake behind it. Water is very heavy, and will always try to escape. So, as safe as they try to build them, that safety is always tenuous at best. \nCheck out my website on the St. Francis Dam, at...\nhttp://www.geocities.com/zeebya/integintro.html
664280
There is no set definition for what is considered a pond versus a lake.\n\nHere is the united states government definition on this topic:\n\nThere are no official definitions for generic terms as applied to geographic names. Every organization will have a definition that is application driven, and no one office definition is accepted as official. The difference is thematic and beyond that it is highly perceptive. The difference between lake and pond is an example. We, at the USGS Geographic Names Office, in developing the Geographic Names Information System (GNIS) database, have devised 63 broad categories of feature types with definitions solely to facilitate retrieval of entries with similar characteristics. So, we define lake as “natural body of inland water,” and not necessarily applicable to another’s needs. We have found 54 different generic terms that have characteristics similar to our definition of lake, but all are classified as lake. The only area of general agreement is that perceptibly, a pond is smaller than a lake, but even this is not always true.\n\nWe classify all “linear flowing bodies of water” as stream, a rather neutral term for our use. There are presently 121 generic terms that fit our broad category stream. As another example, many perceptibly insist that a creek must flow into a river. Such hierarchies do not exist in the Nation's namescape as evidenced by Little River flowing into Goose Creek nearby to our offices here in Northern Virginia. Many controversies exist, such as mountain/hill, which we call summit (as are 194 other generic terms applied to features with similar characteristics), and city/town that we classify as populated place, etc. It might be of interest that the British Ordnance Survey once defined a mountain as having 1,000 feet of elevation, and less was a hill, but this was abandoned sometime in the 1920's we believe. There was even a movie with this as its theme in the late 1990's - The Englishman That Went Up a Hill and Down a Mountain. The U.S. Board on Geographic Names once stated that the difference between a hill and a mountain in the U.S. was 1,000 feet of local relief, but even this was abandoned in the early 1970's. For more information contact the GNIS Manager.
864660
Dams are often built out of dirt and rock and last for hundreds of years.  Adding lime to the rock makes it stronger but it is still important to have a layer of waterproof clay on the lake side of the dam to keep the limecrete or "soilcrete" relatively dry. It is totally dependant on the design but certainly possible for a dam to last several hundred years.
123225
electricity or power obtained from moving water\nmainly from dams and tide power plants
33311
They might be part of the solution, but are hardly THE solution. Tidal power plants work very much like hydroelectic dams. Tides are predictable, but only flow for portions of the day. Tidal range is a local effect so only some locations are suitable for using tidal power. For example in the Caribbean the tides are so small no one notices. The environmental impact of using tidal power by building dams across estuaries is likely to be considered more of a problem than the energy is worth. Tidal turbines resembling an underwater version of a wind farm might have less environmental impact and might be a more realistic solution, but no doubt there will be environmental impacts that limit their use as well.
349291
Most forms of electricity generation involve heating water (burning fossil fuel, solar power, etc) to form steam that turns a turbine.  The excess heat releases a large amount of wasted energy, energy not used to produce electricity.  Hydroelectric power, on the other hand, uses only moving (cool) water to push the turbine, so no heat energy is wasted and no fuel is consumed.  The main problem with hydroelectric power is that rivers end up dammed to collect enough water to move the turbines; dams alter the natural hydrology of their environment by flooding low lying areas, slowing waterflow, and impeeding animal migration.
863618
In old days, infrastructure was rather concentrated for military use that's why one of oldest civil engineering college is in Roorkee (now IIT) adjacent to Military Campus. Civil Eng today is syno of infrastructure including building, dam, residential, commercial, blast resistant, earthquake safe, irrigation, drain, sewerage, drinking water etc. Once an architect decides the possible use of space, this is the duty of Civil Eng to analyse options , design for its safety and durability (including economics contrary to non engineer), construct at site, supervise etc. It also involve innovativeness for designing and can make lot money during construction of buildings for industry or individual (like a business). Today in my opinion , transportation, earthquake and concrete technology are in more demand. Normally Govt colleges offer a degree, only a few pvt college venture for civil engg may be in name of infrastructure. If one does not have much inclination to electronics or IT then Civil ngg is godd to opt. To get admission is through competition and look at the place / state for adission policy, IITs are certainly best but otehr colleges are also worth studying.
432850
Aqueduct.\n\nAn aqueduct is an artificial (man-made) channel that is constructed to convey water from one location to another. The word derives from the Latin words aqua, "water", and ducere, "to lead". Many aqueducts are raised above the landscape, resembling bridges rather than rivers. Sufficiently large aqueducts may also be usable by ships. They are similar to viaducts, but carry water instead of a road or railway. While a road bridge often carries the roadway at a more elevated level than the rest of the road, such a variation of height is not possible for an aqueduct.
566985
I believe your question needs a bit of restructuring.Hydal power is itself stored energy in form stored water at a higher level.Energy is usually released when water is allowed to fall down over turbine i,e potential energy is converted to kinetic energy of turbine blades.
376991
wind is the movement of air\njust like waves are the movement of water
578357
Tungabhadra Dam is 49 m high, 2 km long, the artificial lake has an area of 160 m2., has a reservoir of storage capacity of 4.91 Mm3.there are two power houses with a total installed capacity of 72.00 MW, provides water for an estimated 495000 acres with its catchment area of 79553 sq miles and water spread of 238 sq miles.