Anonymous
Anonymous asked in Science & MathematicsEngineering · 1 decade ago

what is dam?

7 Answers

Relevance
  • 1 decade ago
    Favorite Answer

    A dam is a barrier across flowing water that obstructs, directs or retards the flow, often creating a reservoir, lake or impoundment. In Australian and South African English, the word "dam" can also refer to the reservoir rather than the structure. Most dams have a section called a spillway or weir over which or through which it is intended that water will flow either intermittently or continuously.

    Some of the first dams were built in Mesopotamia up to 7,000 years ago. These were used to control the water level, for Mesopotamia's weather effected the Tigris and Euphrates rivers and could be quite unpredictable. The earliest recorded dam is believed to have been on the Nile river at Kosheish, where a 15m high masonry structure was built about 2900 B.C. to supply water to capital of Memphis.

  • 1 decade ago

    "A dam is a barrier across flowing water that obstructs, directs or retards the flow, often creating a reservoir, lake or impoundment. In Australian and South African English, the word "dam" can also refer to the reservoir rather than the structure. Most dams have a section called a spillway or weir over which or through which it is intended that water will flow either intermittently or continuously."

    Source(s): copied it from here: http://en.wikipedia.org/wiki/Dam
  • 1 decade ago

    DAM......its like a reservoir which is man-made and its filled with water only when it rains.

    Most probably I think to collect water from rain for a useful purpose.

  • 1 decade ago

    A structure used to hold back water. These can either be made by beavers or humans. In the latter situation, they can be used to hold hydroelectric turbines to produce eclectric energy.

    Source(s): Bill Nye the Science Guy (no joke!)
  • How do you think about the answers? You can sign in to vote the answer.
  • 1 decade ago

    Something that is used to hold back water? How are you using the word? www.m-w.com

  • 1 decade ago

    It is an acrostic for:

    Don't

    Ask

    Me

  • 1 decade ago

    it's what beavers build

Still have questions? Get your answers by asking now.