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Topic: Centimetre of water


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In the News (Tue 7 Jul 09)

  
  Water Techniques Factsheet - Gardening Australia - ABC
Watering restrictions and drought are a given in Australia.
The clay sample had just under a centimetre and the vegetable garden soil had well under half a centimetre of water left in the bucket.
Dish drains mean that every time it rains, or you water, the water collects around the base of the plant, soaks deeply and the roots follow into cooler soil.
www.abc.net.au /gardening/stories/s1418324.htm   (589 words)

  
 SPCA   (Site not responding. Last check: 2007-10-12)
Remember that l litre of water weighs 1 kg and you must add the weight of the tank and the equipment, so be sure the surface on which you place the tank will be able to support the weight.
Half fill the aquarium with water, place sand or pebbles on the bottom, anchor in some water plants by placing pebbles or small rocks on their roots, and fill with water to within 5 centimetres from the top of the aquarium.
Adequate aquatic plants must be placed in the pond to help oxygenate the water and to provide a shade and shelter for the fish, as well as a place for fish to lay their eggs.
www.rspca.org.nz /pet_care/fish/fish.html   (921 words)

  
 Density article - Density density (disambiguation) Greek mass volume divided iron water - What-Means.com
Formerly mass and volume were linked by defining the gram to be the mass of one cubic centimeter of water at 4°C which meant that water had density 1 kg/litre.
However, using one cubic centimetre of water as a standard for one gram is problematic due to the possibility of mass loss from evaporation as well as changes in density with temperature.
A cubic metre of water thus weighs approximately one metric tonne.
www.what-means.com /encyclopedia/Density   (452 words)

  
 [No title]
The salts in the ocean are undoubtedly derived from the rocks; increasing age by age as the latter are degraded from their original character under the action of the weather, etc., and converted to the sedimentary form.
For instance, the freezing and expansion of water in the chinks and cracks in those alpine heights where between sunrise and sunset the heat of summer reigns, and between sunset and sunrise the cold of winter.
It is true there are further solvent and chemical effects exerted by the sea water 40 upon the sediments discharged into it; but we are justified in concluding that, relatively to the similar actions taking place in the soils, the solvent and chemical work of the ocean is small.
www.gutenberg.org /files/16614/16614.txt   (20611 words)

  
 Centimetre of water - Wikipedia, the free encyclopedia
It is used to measure the central venous pressure, the intracranial pressure while sampling cerebrospinal fluid, as well as determining pressures during mechanical ventilation or in water supply networks (then usually in metres water column).
It is defined as the pressure exerted by a column of water of 1 cm in height at 4 °C (temperature of maximum density) at the standard acceleration of gravity.
To convert this measure to other units, the following conversion is used:
en.wikipedia.org /wiki/CmH2O   (139 words)

  
 The electrical units   (Site not responding. Last check: 2007-10-12)
The Centimetre is equal to 0.3937 inch in length, and nominally represents one thousand-millionth part, or 1/1,000,000,000 of a quadrant of the earth.
The Gramme is equal to 15.432 grains, and represents the mass of a cubic centimetre of water at 4 degrees C. Mass is the quantity of matter in a body.
RESISTANCE-R.—The Ohm is the resistance of a column of mercury 106.3 centimetres long, 1 square millimetre in cross-section, weighing 14.4521 grammes, and at a temperature of 0 degrees centigrade.
www.harvestfields.ca /etextLinks/16/15.htm   (1593 words)

  
 Technology Education - Wood
Pits in the sidewalls of vessel members generally are smaller than those in tracheids, but their function in translocation of water in the xylem is limited because of the large perforations in the end walls.
Density is the weight or mass of a unit volume of wood, and specific gravity is the ratio of the density of wood to that of water.
In the metric system, density and specific gravity are numerically identical; e.g., the average density of the wood of Douglas fir is 0.45 grams per cubic centimetre (28 pounds per cubic foot) and its specific gravity 0.45, because one cubic centimetre of water weighs one gram.
www.geocities.com /tech_ed_2000/industrial/manufacturing/wood/wood.htm   (7273 words)

  
 8/4/2003 - Water Conserve: Roman pipeline kept water flowing   (Site not responding. Last check: 2007-10-12)
A pipe made from stone blocks bored with 30-centimetre holes carried water from an aqueduct across a 1.5-kilometre valley, running down its northern wall and across its floor before ascending its southern side.
Here water was gathered in a storage tank to supply the city.
Water Conserve users agree to the site disclaimer as a condition for use.
www.waterconserve.info /articles/reader.asp?linkid=21597   (535 words)

  
 Chapter 3 - Meteorological data
Water vapour is a gas and its pressure contributes to the total atmospheric pressure.
The amount of water in the air is related directly to the partial pressure exerted by the water vapour in the air and is therefore a direct measure of the air water content.
Water vapour, clouds, carbon dioxide and dust are absorbers and emitters of longwave radiation.
www.fao.org /docrep/x0490E/x0490e07.htm   (9079 words)

  
 [Goanet] Utilising the Pre-Monsoon Showers in Goa.   (Site not responding. Last check: 2007-10-12)
The millions of tonnes of water vapour carried by the low overhanging clouds would be instantly discharged if the Earth sends a positive signal to the clouds.
Such quantity of water is sufficient to meet the needs of an urban residential colony of 400 households for 10 days.
People might not have had chlorinated public water supply in the past but there was enough water irrespective of the failure of the monsoon.
www.goanet.org /pipermail/goanet/2003-May/001666.html   (1150 words)

  
 [Jewelry making - Article 00262] - Re: [Orchid] Distilled water & Deionized water
Water is de-ionised by passing it through glass columns containing deionising resins, and the output will contain no metal salts, acids or alkalis or other substances which ionize when dissolved in water.
If extra pure water is required, then distilled water is used to dissolve a small amount of potassium permanganate, a little alkali is added, and the liquid is boiled and re-distilled using a good fractionating (separating) column.
Distilled water had a resistance of 58 thousand ohms per square centimetre of electrode at a distance of one centimetre apart.
www.ganoksin.com /orchid/archive/200106/msg00262.htm   (638 words)

  
 Glossary
An acre-foot is 325,851 gallons, or the amount of water needed to cover one acre with water one foot deep.
Runoff—Liquid water that travels over the surface of the Earth, moving downward due to the law of gravity; runoff is one way in which water that falls as precipitation returns to the ocean.
Wash water is typically identified as backwash water and is associated with the wastewater resulting from the cleaning of filter media to remove attached particles.
www.mwdh2o.com /mwdh2o/pages/yourwater/glossary/glossary01.html   (5290 words)

  
 [No title]   (Site not responding. Last check: 2007-10-12)
Generally, water to be disinfected passes through a pressurized stainless steel cylinder which is flooded with ultraviolet radiation.
Thus, when radiation source 170 is in use, a field of radiation is created as shown by arrows A. As shown in Figures 1 and 2, a portion of the radiation from the field of radiation enters second chamber 120 and impinges on window 155.
Thus, when radiation source 270 is in use, a field of radiation is created as shown by arrows A. As shown in Figures 5 and 6, a portion of the radiation from the field of radiation enters second chamber 220 and impinges on window 225.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/25153.010412&ELEMENT_SET=DECL   (3106 words)

  
 DENSITY (Lat. densus, ... - Online Information article about DENSITY (Lat. densus, ...
Avogadro it is seen that the relative density is the ratio of the molecular weights of the experimental and standard gases.
In the case of liquids and solids, comparison with water at 4° C., the temperature of the maximum density of water; at 0° C., the zero of the Centigrade scale and the freezing-point of water; at 15° and 18°, See also:
It may be noted that if comparison be made with water at 40, the relative density is the same as the absolute density, since the unit of mass in the C.G.S. system is the weight of a cubic centimetre of water at this temperature.
encyclopedia.jrank.org /DEM_DIO/DENSITY_Lat_densus_thick_.html   (874 words)

  
 DENSITY - LoveToKnow Article on DENSITY   (Site not responding. Last check: 2007-10-12)
It may he noted that if comparison be made with water at 4, the relative density is the same as the absolute density, since the unit of mass in the C.G.S. system is the weight of a cubic centimetre of water at this temperature.
Similarly in the case of the weighing in water, account must be taken of the buoyancy of the weights, and also, if absolute densities be required, of the density of water at the temperature of the experiment.
pressure, Wi the weight in water, atmospheric conditions remaining very nearly the same; p is the density of the water in which the body is weighed, a is (I +at) in which a is the coefficient of cubical expansion of the body, and I is the density of the air at 10, p mm.
www.1911ency.org /D/DE/DENSITY.htm   (5100 words)

  
 Transports Québec :   (Site not responding. Last check: 2007-10-12)
However, the water levels and the flow of the river may be reduced as a result a climate change, which primarily poses a risk to marine shipping.
The lowest water levels occurred in 1930 and 1960, and the trend today is once again downward.
In fact, for each centimetre the water level drops, a ship has to carry six less containers, or 60 tons less bulk.
www.mtq.gouv.qc.ca /en/ministere/environnement/climat/saint_laurent.asp   (893 words)

  
 Our Solar System - Ganymede   (Site not responding. Last check: 2007-10-12)
Since Ganymede has a low density of 1.94 grams/cubic centimetre (water's density = 1.00), it was originally estimated that the satellite is half water ice with a rocky core extending to half of the satellite's radius.
The mantle is composed of ice and silicates and a crust which is probably a thick layer of water ice.
This grooved terrain is probably formed by tensional faulting or the release of water from beneath the surface.
www.dunnbypaul.net /solarsystem/classic/ganymede.html   (409 words)

  
 water cooling tips for the pros - Overclockers Forums
Distilling water should rid it of ALL particles, since the minerals won't evaporate along with the water.
Jeez...distilled water is nothing but pure h2o that has been ridded of all minerals and other nasty little things....often it is also ozonated.
water is deionised by passing it through glass columns with deionising resins, and then it will contain no metal salts, acids, alkalis and other stuff which ionize's when dissolved in water.
www.ocforums.com /showthread.php?t=339252   (1553 words)

  
 [No title]
Water: is one of the most important requirements in growing any of the Carnivorous Plants that we offer.
In summer, it is best to keep it permanently sitting in about one centimetre of water.
Do not sit the plant in more that one centimetre of water, as this will cause the soil to go sour.
carnivorous.netfirms.com /growingguideprintable.htm   (479 words)

  
 Dock (maritime) -   (Site not responding. Last check: 2007-10-12)
A dock is an area of water often between two piers or alongside a pier, forming a chamber used for building or repairing ships.
Dry docks can be emptied of water, so all parts of the ship can be investigated, cleaned, maintained and repaired.
In American English dock is technically synonymous with pier or wharf--any human-made structure in the water intended for people to be on.
psychcentral.com /psypsych/Dock_(maritime)   (221 words)

  
 Planet Ark
The water level is already so low that hauling crates of fish from his boat bobbing on the water far below the dock is back-breaking work in the sweltering Galilee summer.
The sun evaporates one centimetre of water from the Sea of Galilee every day during summer, meaning that by December the lake will have dropped by at least another metre.
Israel is starting to introduce a series of water conservation laws such as a ban on watering lawns during the day and washing cars with hose-pipes, but experts are concerned the measures are little more than a drop in the ocean.
www.planetark.com /avantgo/dailynewsstory.cfm?newsid=12007   (697 words)

  
 Amfibisch wonen
In the lower, marshy areas there are pontoons with houses among the willow trees; in early spring there was still 30 centimetre of water here.
As soon as the water level was lowered, the bottom began to settle, so that the older polders now lie lower than the later ones.
The water dwellings float in the deeper water.
www.amfibischwonen.nl /implementatie/barendrecht-e.html   (1165 words)

  
 Halfbakery: Waterfall tap
Instead of simply dispensing water from a simple tap, water is delivered from 5 holes at the top of the kitchen.
Water then travels down a big chute, which at the end tapers into a 5-inch-long tube of diameter of about half a centimetre, allowing water to come out in a nice neat dribble.
The think you have in a kitchen/bathroom or on a hose pipe that controls water flow.
www.halfbakery.com /idea/Waterfall_20tap   (212 words)

  
 New calculations support prospect of life on Europa
Water is the key to life, and while it may have once flowed freely on Mars billions of years ago, it is Europa that's believed to have a liquid ocean right now.
The ocean, however, lies under a kilometre-thick layer of ice - too thick to allow the rays of sunlight to be a source of energy necessary for life.
By comparing the ecosystem on Europa to Earth's, Chyba's conservative estimate is one per cubic centimetre, a far cry from the hundreds of thousands of organisms that take up each cubic centimetre of water on Earth.
www.exn.ca /Templates/Story.asp?ID=2000012855   (536 words)

  
 New and used ships and vessels for sale, boats for sale, buy and sell ships and tugboats.
If water is allowed to enter the car deck, the stability of the whole vessel can be rapidly affected.
It is estimated that it only needs one centimetre of water over the whole car deck, for the vessel to become so unstable that it can overturn.
In the bitter waters of the Baltic Sea, the loss of life was terrible.
www.ship-find.com /descriptions.htm   (897 words)

  
 CBC North - Water main break delays mail   (Site not responding. Last check: 2007-10-12)
Canada Post prides itself on delivering the mail rain or shine, but a burst water pipe prevented some Whitehorse residents from getting their letters on Friday.
The water also seeped into a gift shop next door to the postal outlet.
Plumbers are working to replace a 25-centimetre water main with a gaping hole in it.
www.cbc.ca /north/story/yuk-storeflood.html   (263 words)

  
 New Scientist Premium- Glaciers skate on thick water - News
A THIN layer of water is what allows glaciers to slide and ice skaters to glide.
An investigation of the lubricating liquid that forms when ice comes into contact with a solid shows that the water is super-dense.
While 1 cubic centimetre of normal water has a mass of 1 gram, the same volume of the newly discovered phase would be 17 per cent heavier.
www.newscientist.com /article/mg18224431.800   (306 words)

  
 John Quiggin » Blog Archive » Saving the Macquarie Marshes   (Site not responding. Last check: 2007-10-12)
There are a range of risks to water resources assessed for 2030 that are being realised now, due to the recent run of dry years and “business as usual” management.
Our new Water Act sets all the necessary rules for transfer and an environmental reserve, it’s just up to the politicians to take on a very loud and squeaky wheel in the reform-averse farm lobby.
This measure of volume is ridiculously unwieldy for the quantities of water being discussed and should be jettisoned in favour of “cubic metres” or “tonnes” of water.
johnquiggin.com /index.php/archives/2006/03/12/saving-the-macquarie-marshes-2   (1043 words)

  
 [No title]   (Site not responding. Last check: 2007-10-12)
Additionally, for many practical applications, it is necessary to incorporate a special cleaning system for removal of fouling materials from the sensor to avoid conveyance of misleading information about lamp performance.
It would be desirable to have a radiation source assembly and module containing same which incorporated an optical radiation sensor that does not interfere with the flow of water or exposure of the fluid being treated to radiation.
OF THE INVENTION It is an object of the present invention to provide a novel radiation source module which obviates or mitigates at least one of the above-mentioned disadvantages of the prior art.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/17906.010315&ELEMENT_SET=DECL   (1982 words)

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