• Splash-Dam
  • WordNet 3.6
    • v dam obstruct with, or as if with, a dam "dam the gorges of the Yangtse River"
    • n dam female parent of an animal especially domestic livestock
    • n dam a barrier constructed to contain the flow of water or to keep out the sea
    • n dam a metric unit of length equal to ten meters
    • ***

Additional illustrations & photos:


Webster's Revised Unabridged Dictionary
  • Interesting fact: Construction workers hard hats were first invented and used in the building of the Hoover Dam in 1933.
    • Dam A barrier to prevent the flow of a liquid; esp., a bank of earth, or wall of any kind, as of masonry or wood, built across a water course, to confine and keep back flowing water.
    • Dam A female parent; -- used of beasts, especially of quadrupeds; sometimes applied in contempt to a human mother. "Our sire and dam , now confined to horses, are a relic of this age (13th century) . . . . Dame is used of a hen; we now make a great difference between dame and dam .""The dam runs lowing up and down,
      Looking the way her harmless young one went."
    • Dam (Metal) A firebrick wall, or a stone, which forms the front of the hearth of a blast furnace.
    • Dam A king or crowned piece in the game of draughts.
    • Dam To obstruct or restrain the flow of, by a dam; to confine by constructing a dam, as a stream of water; -- generally used with in or up. "I'll have the current in this place dammed up.""A weight of earth that dams in the water."
    • Dam To shut up; to stop up; to close; to restrain. "The strait pass was dammed With dead men hurt behind, and cowards."
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: There is enough concrete in the Hoover Dam to pave a two lane highway from San Francisco to New York
    • n dam A mole, bank, or mound of earth, or a wall, or a frame of wood, constructed across a stream of water to obstruct its flow and thus raise its level, in order to make it available as a motive power, as for driving a mill-wheel; such an obstruction built for any purpose, as to form a reservoir, to protect a tract of land from overflow, etc.; in law, an artificial boundary or means of confinement of running water, or of water which would otherwise flow away.
    • n dam In mining, any underground wall or stopping, constructed of masonry, clay, or timber, for the purpose of holding back water, air, or gas.
    • n dam In dentistry, a guard of soft rubber placed round a tooth to keep it free from saliva while being prepared for filling.
    • n dam The body of water confined by a dam.
    • dam To obstruct or restrain the flow of by a dam; confine or raise the level of by constructing a dam, as a stream of water: often with in, up.
    • dam To confine or restrain as if with a dam; stop or shut up or in; obstruct: with up.
    • n dam A female parent: used of beasts, particularly of quadrupeds, and sometimes (now usually in a slighting sense) of women.
    • n dam A crowned man in the game of draughts or checkers.
    • n dam A fire-brick wall forming the front of the hearth or crucible of a blast-furnace, through which the tap-hole is formed.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: Gustave Eiffel, the builder of the Eiffel Tower, also built a dam in Russia, a church in the Philippines, locks for the first attempt at the Panama Canal, and designed the right arm and full steel structure supporting the Statue of Liberty.
    • n Dam dam an embankment to restrain water: the water thus confined
    • v.t Dam to keep back water by a bank:—pr.p. dam′ming; pa.p. dammed
    • n Dam dam a mother, applied to quadrupeds.
    • ***


Not worth a tinker's dam - This means that something is worthless and dates back to when someone would travel around the countryside repairing things such as a kitchen pot with a hole in it. He was called a 'tinker'. His dam was used to stop the flow of soldering material being used to close the hole. Of course his 'trade' is passé, thus his dam is worth nothing.
Water over the dam - (USA) If something has happened and cannot be changed, it is water over the dam.


Webster's Revised Unabridged Dictionary
Akin to OLG., D., & Dan. dam, G. & Sw. damm, Icel. dammr, and AS. fordemman, to stop up, Goth. Faúrdammjan,
Chambers's Twentieth Century Dictionary
A form of dame.


In literature:

Van Dam's plan was quickly made.
"History of the War in South Africa 1899-1902 v. 1 (of 4)" by Frederick Maurice
Dam mistake of mine to say!
"Somehow Good" by William de Morgan
They ran some small rapids after a time, and later carried around a little dam.
"The Rival Campers Ashore" by Ruel Perley Smith
I have often wondered if beaver make a preliminary survey of a place before beginning to build a dam.
"Wild Life on the Rockies" by Enos A. Mills
Were the runaways there now, and in danger of the dam, should it break?
"Dave Porter and the Runaways" by Edward Stratemeyer
Busy Beaver was building a dam across the Bubbling Brook.
"Little Jack Rabbit's Adventures" by David Cory
I could make a dam there, and a flume.
"Harper's Young People, June 1, 1880" by Various
You know its location: a mile, perhaps, from Gatun Dam and the spillway.
"Raiders Invisible" by Desmond Winter Hall
Leslie and my father are the ones who backed him on the Zariba Dam.
"Out of the Depths" by Robert Ames Bennet
He came up from the dam one afternoon and stood on the slope of the bank, looking down into the hole.
"Partners of the Out-Trail" by Harold Bindloss
Blind, helpless, murmuring little balls of fur, they were tended lovingly by the dam.
"Creatures of the Night" by Alfred W. Rees
Concrete core in a dam 159 40.
"Rural Hygiene" by Henry N. Ogden
Gretchen Gilder, she get married to that slob Peters last year, and Peters he no dam-good.
"The Spoilers of the Valley" by Robert Watson
And a dam' good name, too.
"Hidden Water" by Dane Coolidge
Are a trained understanding and a quick comprehension of no use when one builds a dam?
"The Greater Power" by Harold Bindloss
In the valleys were deep pools made by beavers' dams and in these the trout "holed up" for the winter.
"A Mountain Boyhood" by Joe Mills
Mayor Buck orders the dam to be broken, and warm water fills up the entire hole.
"FreeChildrenStories.com Collection" by Daniel Errico
Where had stood the dam, gray with age and moss-covered, holding in check its tiny lake, was now nothing but ruins.
"The Plunderer" by Roy Norton
Australian, out of Lavender by Wagner, her dam Alice Carneal by imp.
"History of the Kentucky Derby, 1875-1921" by John Lawrence O'Connor
Of the dams, ninety-two are termed large state dams.
"Area Handbook for Bulgaria" by Eugene K. Keefe, Violeta D. Baluyut, William Giloane, Anne K. Long, James M. Moore, and Neda A. Walpole

In poetry:

How hollow
Are tears upon a sleeve
In gemlets;
For mine cannot be dammed
As a surging flood!
"How hollow" by Ono no Komachi
Good sooth, I wot he should be called
Buena's favorite son
Who's sired of such a noble sire
And dammed by every one!
"The Ballad Of The Taylor Pup" by Eugene Field
No more a toiler at the wheel,
It wanders at its will;
Nor dam nor pond is left to tell
Where once was Birchbrook mill.
"Birchbrook Mill" by John Greenleaf Whittier
In Tophet of the dam'd's resort
Thy soul shall never dwell,
Nor needs from thence imagine hurt,
Thy Husband formed hell.
"The Believer's Jointure : Chapter II." by Ralph Erskine
En aan die duine, waar die wind
'n Wierook na die see toe waai,
En aan die dam, waaroor die voëls
So vrolik in die nessies swaai;
"In Amsterdam" by Christian Frederik Louis Leipoldt
I can see the bright water flowing
At the foot of the sloping hill,
The dam that impeded its progress,
The toy-wheel of water-mill.
"Retrospection" by Jared Barhite

In news:

One person is dead after this bus crashed near Kingman, Arizona Friday night, not far from the Hoover Dam .
Taking a break from debate prep, President Barack Obama made an unexpected stop Tuesday at the Hoover Dam , his first visit to a tourist spot considered one of the world's great engineering feats.
Obama takes debate-prep break to tour Hoover Dam .
President Obama Visits the Hoover Dam .
President Obama took a break from his debate preparation to be a tourist on Tuesday, heading to the Hoover Dam in the afternoon for a short tour of the massive monument to public works.
President Obama checks out the Hoover Dam .
President Obama made a surprise visit to the Hoover Dam on Tuesday after a campaign stop in nearby Henderson, Nev. A large Las Vegas suburb.
"Its spectacular, and I've never seen it before," Obama told reporters when asked why he stopped at the Dam.
President Obama made a surprise visit to the Hoover Dam Tuesday after a campaign stop in nearby Henderson, Nev. A large Las Vegas suburb.
President Obama takes a break from preparing for this week's debate with Mitt Romney to visit the Hoover Dam .
Obama's motorcade cruised along the winding roads to the dam for the brief outing.
Water managers across the country are scrambling for ways to produce the same amount of power from the hydroelectric grid with less water, including from behemoths such as the Hoover Dam .
Dealing with drought at the Hoover Dam .
Hoover Dam bridge attracting suicidal jumpers.
Soaring Hoover Dam bypass bridge finally complete.

In science:

The same problem expressed with additive group notation has been called the hidden shift problem, and instances of this problem were solved efficiently by van Dam, Hallgren and Ip .
Quantum Algorithms
Van Dam and Seroussi give an efficient quantum algorithm for estimating Gauss sums.
Quantum Algorithms
Childs, W. van Dam, “Quantum algorithm for a generalized hidden shift problem”, Proceedings of the Eighteenth Annual ACM-SIAM Symposium on Discrete Algorithms (SODA), 1225–1232, (2007).
Quantum Algorithms
The first model of QCA researched in depth was that introduced by Watrous (5), whose ideas where further explored by van Dam (6), D¨urr, LˆeThanh, and Santha (7; 8), and Arrighi (25). A Watrous-QCA is defined over an infinite 1-dimensional lattice, a finite set of states including a quiescent state.
Quantum Cellular Automata
Watrous’ model was further developed by van Dam (6), who defines a QCA as an assignment of a product vector to every basis state in the computational basis.
Quantum Cellular Automata
Van Dam showed that the finite version is also computationally universal. Efficient algorithms to decide whether a given 1-dimensional QCA is unitary was presented by D¨urr, LeTanh, and Santha (7; 8).
Quantum Cellular Automata
The QCA defined by Van Dam is a finite version of a Watrous QCA and is computationally universal as well (6).
Quantum Cellular Automata
As a precursor to the efficient quantum algorithm, it was shown that the quantum query complexity is O(1), while the classical query complexity is W(log p) (van Dam, 2002).
Quantum algorithms for algebraic problems
Seroussi, 2002, Efficient quantum algorit hms for estimating Gauss sums, eprint quant-ph/0207131. van Dam, W., and U.
Quantum algorithms for algebraic problems
Notably, van Dam showed that the paradigmatic example of such a generalized theory, characterized by maximally non-local correlations known as PopescuRohrlich (PR) boxes , appears very unlikely to exist since it allows for a dramatic increase of communication power compared to QM.
Couplers for Non-Locality Swapping
When the mass is bigger than a critical fraction of the curvature, the van Dam-Veltman -Zakharov (vDVZ) discontinuity [10, 11] says that the predictions drastically disagree with general relativity.
Breaking Diffeomorphism Invariance and Tests for the Emergence of Gravity
This paper studies large dam models where the difference between lower and upper levels, L, is assumed to be large.
Optimal control of a large dam, taking into account the water costs [New Edition]
Input stream of water is described by compound Poisson process, and the water cost depends upon current level of water in the dam.
Optimal control of a large dam, taking into account the water costs [New Edition]
A large dam is defined by the parameters Llower and Lupper, which are, respectively, the lower and upper levels of the dam.
Optimal control of a large dam, taking into account the water costs [New Edition]
If the current level is between these bounds, the dam is assumed to be in a normal state.
Optimal control of a large dam, taking into account the water costs [New Edition]