hard water


  • WordNet 3.6
    • n hard water water that contains mineral salts (as calcium and magnesium ions) that limit the formation of lather with soap
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Although the outsides of a bone are hard, they are generally light and soft inside. They are about 75% water
    • Hard water See under Hard.
    • Hard water water, which contains lime or some mineral substance rendering it unfit for washing. See Hardness, 3.
    • ***


  • Lao-Tzu
    “In the world there is nothing more submissive and weak than water. Yet for attacking that which is hard and strong nothing can surpass it.”


In literature:

Wood and water are easily to be had, except when it blows hard easterly.
"A General History and Collection of Voyages and Travels, Vol. 15 (of 18)" by Robert Kerr
It was very hard work, as his water was cold.
"Vandover and the Brute" by Frank Norris
They had been wrapped in a piece of white linen, and then tied tightly in oiled cloth, and were hardly damped with sea-water.
"A Maid of the Silver Sea" by John Oxenham
The wind was still blowing hard, but we were among the islands, and in comparatively smooth water.
"A Voyage in the 'Sunbeam'" by Annie Allnut Brassey
The water was hardly above his knees when there came a swirling rush from the seaweed.
"The Wings of the Morning" by Louis Tracy
They have one large fin out of the water and are very hard to harpoon.
"Cape Cod and All the Pilgrim Land, June 1922, Volume 6, Number 4" by Various
We tumbled together on to the hard sand so that our feet splashed into the water.
"Famous Modern Ghost Stories" by Various
Then she was forced to do hard work; to rise early, before daylight, to bring the water, to make the fire, to cook and to wash.
"My Book of Favorite Fairy Tales" by Edric Vredenburg
When I blow my breath about me, the rivers become motionless and the waters hard as stone.
"The Child's World" by Hetty Browne, Sarah Withers, W.K. Tate
The hardness of the Southampton water on Clark's scale is 18 deg.
"Scientific American Supplement, No. 841, February 13, 1892" by Various
Oh, how hard he was swimming, but the water was stronger than he was.
"Lulu, Alice and Jimmie Wibblewobble" by Howard R. Garis
In the meantime hardly four minutes had really elapsed since the skaters had tumbled into the water.
"Grace Harlowe's Sophomore Year at High School" by Jessie Graham Flower
In hard water, boiling softens it.
"The Easiest Way in Housekeeping and Cooking" by Helen Campbell
I took my blanket and went to lie on the hard ground, under the water waggon.
"Tramping on Life" by Harry Kemp
She did not get the cup, but the water out of it, in her hard old face, and matters were as they had been.
"Love Stories" by Mary Roberts Rinehart
As the cows hardly ever gave any milk in winter, children were given cider and water to drink.
"Stories of American Life and Adventure" by Edward Eggleston
The water came into his eyes, and unconsciously he pulled hard at the iron bars.
"The Texan Scouts" by Joseph A. Altsheler
The retreating water caught them about the ankles and pulled hard, but could not drag them back.
"The Texan Star" by Joseph A. Altsheler
If butter is too hard to serve, heat a bowl with boiling water and turn the empty bowl over the butter.
"Food and Health" by Anonymous
They could see the rain coming down hard, and on both sides of them was what seemed to be a big river of water.
"Bunny Brown and His Sister Sue on an Auto Tour" by Laura Lee Hope

In poetry:

The hard sun, as thy petals knew,
Coloured the heavy moss-water:
Thou wert not worth green midsummer
Nor fit to live to August blue,
O sundew, not remembering her.
"The Sundew" by Algernon Charles Swinburne
Hard by the terraced hillside town,
Where healing streamlets run,
Still sparkling with their old renown,—­
The “Waters of the Sun,”—­
"Agnes" by Oliver Wendell Holmes
In the bleak midwinter, frosty wind made moan,
Earth stood hard as iron, water like a stone;
Snow had fallen, snow on snow, snow on snow,
In the bleak midwinter, long ago.
"In the Bleak Midwinter" by Christina Georgina Rossetti
In his pack he carried a crust of bread,
And he drank from his hands at a brook hard by;
"Spring water is wonderful cool," he said,
"And wonderful soft is the summer sky!"
"Possession" by Isabel Ecclestone Mackay
Their thirst grew bitter and they said
Come, this will never do!
It is your turn for water, Ned,
Then why not go? He drew
Full hard his breath and from his head
There dripped a sudden dew.
"Ned Connor" by Charles Harpur
An' when, in the winter, the zun did goo low,
An' keen win' did huffle,
But never could ruffle
The hard vrozen feäce o' the water below,
His limbs wer a-fringed wi' the vrost or the snow.
"The May-Tree" by William Barnes

In news:

Our well water is quite hard and has a high content of sulfur.
We must all stay vigilant and work hard watering Dr King's dream with our sweat to make sure that it continues to live and does not explode.
Over the past few months we have reported the issues customers have with Aqua , including dirty, hard water and high monthly bills.
In another Olympic excursion, Ava Marie heads to Johns Hopkins University, where she learns the basics of water polo -- and how hard it is -- from some of the university's coaches and former players.
It's hard not to panic when you open a monthly water bill and find you are suddenly $4,965.83 in the hole.
Launched this past July, two new backpacks from Pelican can insulate your laptop or tablet from water and any hard hits.
Emergency generators and bottled water are hard to find in Central New York.
Broken Water Tempest Hardly Art.
It's amazing, and frustrating, how quickly showers get dirty after you've cleaned them -- especially if you live in an area with hard water.
Take a drive through the Dells and with all the hotels, restaurants and water slides, it's hard to imagine this is a community of only a few thousand people.
Johns Riverkeeper battled long, hard and unsuccessfully against withdrawing water from the river to supply Central Florida utility customers.
Rescue teams are hard at work on the water.
0It may be hard to believe, that two months ago parts of Swartz Creek was under water.
Adjust heat so the water is lightly boiling and cook until the lentils are not hard, but still maintain their shape, about 7 minutes.
This week has offered a hard lesson for pirates , both water- and Web-based: Keep a low profile and your illicit business can flourish.

In science:

It is as if you could throw a hard drive in a water bath with a few enzymes and a few raw materials, run the temperature through a few cycles, and pull out millions of identical hard drives.
The transmission sense of information
Without a way to build a computer entirely out of water — whose only elements are the eddies and vortices themselves — we have no way to prove that the system is hard.
Computational Complexity in Physics
Indeed, there is such a natural marriage between the requirements to discover leptonic CP violation and see proton decay (i.e. an approximately 500 kTon water Cherenkov detector) that it could be hard to imagine undertaking either effort without being able to do the other.
Report of the US long baseline neutrino experiment study
The Cherenkov signal in the water tank is larger for penetrating hard muons than soft electrons and gammas in the shower, thus making the Auger/SD more sensitive to the hadronic component in the EAS.
Measurement of Ultra-High Energy Cosmic Rays: An Experimental Summary and Prospects
This will maintain the required service temperature in the domestic hot water distribution piping. Domestic water piping will be type L hard copper with lead-free solder and will run overhead.
Reference Design Project Book: NUSEL-Homestake
Both silica and polymer surfaces can be considered as hard surfaces, the polymer film for high molecular weights being mechanically inert under the action of the oscillating tip in the attractive regime.16 In the glove box, the p.p.m. of water is achieved so that capillary forces are negligible
Nonlinear dynamical properties of an oscillating tip-cantilever system in the tapping mode
Finding order in what looks like a chaos, not grinding water but finding natural definitions and hard theorems; generality, being able to say something from very few assumptions, was impressive.
Model Theory