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	Water clock - Wikipedia, the free encyclopedia
		Water clocks were among the earliest clocks that did not depend on the observation of celestial bodies.
		Later named clepsydras ("water thieves") by the Greeks, who began using them about 325 BC, these were stone vessels with sloping sides that allowed water to drip at a nearly constant rate from a small hole near the bottom.
		Some water clocks rang bells and gongs; others opened doors and windows to show little figures of people, or moved pointers, dials, and astrological models of the universe.
	en.wikipedia.org /wiki/Water_clock (528 words)

	Chapter 8: Water Supply
		Water is used in many ways - e.g., as a nourisher of plant and animal life, a bearer of food, a prime element of industrial processes, and a medium for transportation.
		Water conservation also includes using water of lower quality such as reclaimed wastewater effluent, gray water, or runoff from ground surfaces for toilet flushing or irrigation of vegetative landscape or food crops.
		The hydraulic ram is a self-acting impulse pump that uses the momentum of a slight fall of water to force a part of the water to a higher elevation.
	www.nps.gov /dsc/dsgncnstr/gpsd/ch8.html (2460 words)

	Fountains
		In the 13th century AD a water driven pump was built at Damascus and was kept in use until 1960.
		Water was supplied from a complex of water wheels, known as the machine at Marly.
		Windmills were widely used to pump water in Holland by the end of the 17th century and their use spread to England, especially to the fenlands.
	www.gardening-uk.com /waterlands/fountains/power.html (1569 words)

	Aquatic Velocipedes
		This lever operated land and water velocipede was patented in 1869, by David Farmer, of Wheeling, West Virginia.
		The annexed engraving illustrates a machine which acts in relation to water as the bicycle does to a solid surface; that is to say, it gives the same opportunity for balancing, and depends on inertia for the upright position of the rider.
		An aquatic bicycle patented in 1894, by Jacob Ronk, of Fort Wingate, Territory of New Mexico, consisted of a pair of large pneumatic wheels driven by a pedal mechanism mounted on a platform suspended from the axle.
	www.americanartifacts.com /smma/velo/velo.htm (1061 words)

	SOFIA - Poster - Thermally-Driven Vertical Mixing in the Everglades
		The velocity-meter probe was positioned 16 cm above the litter layer in a 62 cm-deep water column, thus, the velocity sample volume was 11 cm from the litter-layer boundary and 51 cm from the water surface.
		Initial heating of the water surface at sunrise is followed by progressive heating of the water column with depth throughout the day, resulting in increasing stratification throughout the late morning and early afternoon.
		Diel coincidence of the thermal destratification and pronounced velocity fluctuations indicates the onset of mixing in the water column driven by thermal convection.
	sofia.usgs.gov /geer/2003/posters/thermmix (1218 words)

	Wind-Driven Ocean Currents, Alaska Science Forum (Site not responding. Last check: 2007-11-03)
		The combination of this so-called Coriolis force and the force of the wind results in the water surface moving at a 45 degree angle to the wind direction--to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
		Going down in depth in the Northern Hemisphere, the water is driven more and more to the right, until at a depth of about 60 meters, the water actually is driven opposite the direction of the wind.
		If the water is driven away, the result is upwelling to replace the water forced away.
	www.gi.alaska.edu /ScienceForum/ASF2/291.html (358 words)

	Water Raising Machines
		The wheel is turned by the impact of water on paddles mounted on the rim.
		Flowing water turned a water wheel which via a system of perpendicular gears caused a chain of pots to raise the water.
		When the water wheel rotated, each lever arm was raised in succession by the cams, water was then drawn up by the piston through the valve.
	www.ummah.net /history/scholars/water (986 words)

	IATP \| Water Observatory
		The baseline documents that specify the scopes of activities involved in the various themes and delineate the issues at the local level have been prepared for selected themes and cross-cutting perspectives, by "beacons" (an organisation or a group of organisations) appointed by the organizing committee.
		They state that water is a social and cultural good, not merely an economic commodity.
		High-profile privatisation failures in major cities of the South provide ample evidence that the water needs of the poor should not be left in the hands of profit-driven transnational water corporations.
	www.waterobservatory.org (592 words)

	U.S. Inspect - Professional Home Inspections: Wells Types - House Facts
		Driven - A driven well is a pipe with a special point that is driven into the ground to a source of water.
		Driven wells are limited to areas of sandy, rock-free soils that allow the pipe to be driven without significant interference.
		The well water that enters the low-pressure zone and the velocity of the water coming through the venturi nozzle pushes it upward, where it is captured and lifted by suction to the pressure/storage tank.
	www.usinspect.com /Wells/WellTypes.asp (335 words)

	deepcirc
		Deep water circulation is driven by variations in density due to temp.
		Water Mass = a layer in the ocean identifiable by its temperature and salinity (and therefore its density).
		Salinity and temperature are derived from evaporation/precipitation and heating/cooling at the surface.
	www.clas.ufl.edu /users/emartin/OCE1005s02/lectures/deepcirculation.htm (428 words)

	USATODAY.com - Salt water and waste heat equal drinking supply (Site not responding. Last check: 2007-11-03)
		The water is then sprayed into the top of a diffusion tower — a column packed with a matrix that creates a kind of slow-motion waterfall.
		So indirectly, Americans may be using as much water when they turn on lights and run appliances as they do when taking showers and watering lawns.
		Other industries that produce waste heat and use lots of fresh water — such as refineries, pulp and paper plants, and chemical- and food-processing plants — could also build their own DDD plants and supply themselves.
	www.usatoday.com /tech/news/2005-02-03-waste-heat-water_x.htm (824 words)

	Kifco Products (Site not responding. Last check: 2007-11-03)
		An engine driven model should be used if high travel speeds are needed for light applications (0.3 inches of water or less).
		Usage of a turbine driven model in a slurry application is limited due to the size of particles that can pass through a turbine motor.
		If the pressure of the water is marginal it may be wise to choose an engine driven machine.
	www.kifco.com /a-series.html (462 words)

	[No title]
		This suggests that water was present as part of the crystal structure.
		The mass of water that has been boiled off into the air is [ 5 (18.0 g) ] = 90.0 g, which is the mass of five moles of water.
		The formula of the hydrate shows the ratio of the moles of anhydrous salt to the moles of water; in the above case, that ratio is 1:5.
	www.unit5.org /christjs/9hydratelab.doc (1058 words)

	SPACE.com -- Water Once Filled Mars Opportunity Rover Landing Site
		Water once covered or infused the small crater in which the rover sits, then it gradually evaporated away leaving high concentrations of salt behind.
		The geologic signs of Martian water include Opportunity's discovery that the outcrop was full of sulfate salt deposits arranged in layers, with embedded spherical particles that can be formed by liquid water.
		Water is essential to life as we know it.
	www.space.com /scienceastronomy/opportunity_news_040302.html (1777 words)

	Carbon Dioxide-Driven, Cold Water Geysers --- Crystal Geyser, Utah
		The activity of cold-water geysers is similar to their hot water counterparts, except that CO bubbles drive the eruption instead of steam.
		-laden water lies in a confined aquifer, in which water and CO are trapped by less permeable overlying strata.
		Analogous to steam bubbles expanding to displace water in a hot water geyser, the column of water in a cold-water geyser’s plumbing exerts enough pressure to keep the CO in solution and in small bubbles.
	www.uweb.ucsb.edu /~glennon/crystalgeyser (693 words)

	Earliest Clocks
		Later named clepsydras ("water thieves") by the Greeks, who began using them about 325 BCE, these were stone vessels with sloping sides that allowed water to drip at a nearly constant rate from a small hole near the bottom.
		More elaborate and impressive mechanized water clocks were developed between 100 BCE and 500 CE by Greek and Roman horologists and astronomers.
		Since the rate of flow of water is very difficult to control accurately, a clock based on that flow could never achieve excellent accuracy.
	physics.nist.gov /GenInt/Time/early.html (1039 words)

	Water Driven Chemical Injectors Globaltreat.com : Water Driven Chemical Injectors
		Visit the water driven chemical Injectors section of the website, or contact our offices for more information, shipping, delivery and prices.
		Reliability of our water driven chemical Injectors is unmatched which is something we take pride in.
		Contact the company office to discuss a variety of general industrial uses relating to water driven chemical Injectors.
	www.globaltreat.com /water-driven-chemical-Injectors.html (217 words)

	Water Driven Chlorine Feeders Globaltreat.com : Water Driven Chlorine Feeders
		Visit the water driven chlorine feeders section of the website, or contact our offices for more information, shipping, delivery and prices.
		Reliability of our water driven chlorine feeders is unmatched which is something we take pride in.
		Contact the company office to discuss a variety of general industrial uses relating to water driven chlorine feeders.
	www.globaltreat.com /water-driven-chlorine-feeders.html (220 words)

	Inline water driven pump to increase pressure from 30 psi to 60 psi
		Inline water driven pump to increase pressure from 30 psi to 60 psi
		I am looking for a small water driven pump that will increase a 1 and 1/4 inch hose pressure from about 30 PSI to 60 or 70 PSI.
		Water powered back-up sump pump by John Ciccone February 18th, 2002 07:58 PM Can Be Very Effective by Dodgeman February 18th, 2002 08:52 PM Water powered back-up sump pump by John Ciccone February 20th, 2002 07:18 PM Thread Follow-ups:
	www.bobvila.com /wwwboard/messages/115250.html (291 words)

	Can Be Very Effective
		In order to develop 1/3 hp with a water driven pump, you would have to have 10 gallons per minute available at a useable 70 psi.
		The bottom line is, if you don't have to move a lot of water, a water driven pump can be very effective.
		Water powered back-up sump pump by John Ciccone February 20th, 2002 07:18 PM Your Welcome....
	www.bobvila.com /wwwboard/messages/54736.html (254 words)

	SOFIA - Vegetative Resistance to Flow in the Everglades - Abstract
		However, in the slowly flowing wetlands of the Everglades, thermally-driven convection is the dominant mixing mechanism.
		Highly variable flow velocities in the hours after sunset can be linked to thermal convection by considering temperature data obtained from a set of thermistors, having an accuracy of 0.1 °C, cabled vertically 10 cm apart in a string deployed near the velocity meter.
		Thermistor data show the heavily vegetated water column to be isothermal at the beginning of each day (fig.
	sofia.usgs.gov /projects/vege_resist/vertmix_geer03abs.html (895 words)

	Kifco agricultural irrigation, slurry reels and pumps and more (Site not responding. Last check: 2007-11-03)
		They can often be operated from a municipal water supply without need for a pump.
		However, gasoline engine driven booster pumps are available for the Kifco Water-Reel® machines.
		Water driven machines are generally not recommended because of the water quality.
	www.kifco.com (278 words)

	World Water Speed Records
		The last propeller driven water-craft to hold the absolute Water Speed Record.
		PT, as Villwock piloted the Miss Budweiser on the first leg of the run to an average speed of 213.437mph, and to an average speed of 227.550 mph on the return leg, resulting in the new world water speed record of 220.493 mph, for propeller driven boats.
		2. Also set the Land Speed Record the same year, with a 4-wheel driven, shaft-turbine powered vehicle with an average speed of 403.10mph, on the dry salt lake bed of Lake Eyre, SA, Australia. This is still a record for shaft-driven turbine powered vehicles.
	www.geocities.com /Colosseum/Sideline/8707 (419 words)

	(OAIC) A STUDY ON A HOT-WATER DRIVEN AIR-COOLED ABSORPTION RE... (Site not responding. Last check: 2007-11-03)
		The heat transfer performance of the air coolers is improved by strip fins used to control air flow distribution.
		Combing the above technologies, an experimental model for a hot-water driven air-cooled absorption refrigerating machine is developed at a water temperature of 160oC.
		The unit has a COP of 0.8 at an ambient temperature of 35oC, and a circulating chilled refrigerant temperature of 6oC.
	es.epa.gov /p2pubs/oaic/713.html (263 words)

	Changes in Standards for Uranium in Drinking Water Driven by New Studies, vol. 1, no. 2
		But recent studies of Canadian populations exposed to moderate levels of uranium in their drinking water demonstrate that uranium is more toxic to the human kidney than previously thought.
		For example, Health Canada in 1999 recommended a maximum acceptable concentration of uranium in drinking water of 0.01 milligrams per liter (mg/l), and since then has recommend that the provincial governments adopt regulations limiting uranium levels to 0.02 mg/l in public water supplies.
		First, those of several Navajo communities and institutions that are interested in improving and expanding water quality and health surveillance in a population already affected by a high rate of kidney disease.
	www.sric.org /voices/2000/v1n2/uraniumH2O.html (633 words)

	Boing Boing: Water pump driven by kids' roundabout
		The Playpump is an ingenious made-in-Africa water pump driven by a childrens' roundabout.
		Playing on a roundabout or merry-go-round has always been fun for children, so there is never a shortage of 'volunteers'.
		As the children spin, water is pumped from underground (3) into a 2500 litre tank (4), standing seven metres above the ground.
	www.boingboing.net /2005/07/12/water_pump_driven_by.html (308 words)

	Spaceflight Now \| Destination Mars \| Rock fragmentation at rover site possibly result of water
		The soil has the appearance of mud and while no one believes liquid water is the cause, some sort of cohesive material, or force, must be at work to explain the soil's appearance.
		Water, of course, is the central theme in NASA's Mars exploration program.
		Spirit and the identical rover Opportunity, bound for the other side of Mars, were built to find out how long the water that once carved the red planet's surface persisted.
	spaceflightnow.com /mars/mera/040112science.html (2113 words)

	(WO 2004/071169) SPEED LIMITING FOR ROTARY DRIVEN SPRINKLER (Site not responding. Last check: 2007-11-03)
		Dynamic viscous damping of the turbine output power train is used to control the rotational speed of the turbine.
		This prevents overspeeding when the turbine is air driven, and also when the turbine is water driven, under abnormal conditions such as blockage of a bypass area designed to control the turbine speed by limiting flow to the turbine.
		The same mechanism can be used to impose a lower rotational speed in the turbine during normal operation in conjunction with a turbine optimized for lower speed operation to reduce the required gear reduction in the power train.
	wipo.int /cgi-pct/guest/getbykey5?KEY=04/71169.040826&ELEMENT_SET=DECL (199 words)

	Engine-Driven Hot Water Pressure Washers (Site not responding. Last check: 2007-11-03)
		Units come complete with 25 amp alternator, 12 volt oil fired burner, trigger type shut-off gun with double barrel lance, and a downstream detergent injector.
		With the steam option, this is the only piece of equiptment you'll need.
		Sioux stocks parts for these models and they are available from stock or can be shipped faster.
	www.sioux.com /49.html (169 words)

	eBay - water ..., Parts Accessories, Home Decor items on eBay.com (Site not responding. Last check: 2007-11-03)
		Persian Miniature Water Vessel Set Aftabeh Lagan NR!
		Bosch 125B NG AquaStar Tankless Water Heater - Nat.
		RARE Dave Liebman The Elements: Water Pat Metheny
	search-desc.ebay.com /search/search.dll?query=water+...&newu=1&krd=1 (428 words)

	water driven pumps - Find, Compare, and Buy at Shopping.com
		water driven pumps - Find, Compare, and Buy at Shopping.com
		Tax and shipping estimated for Fort Lauderdale, FL 33301
		Jeff Greenberg Prints - Wind-driven water pump, FL (In stock)
	www.shopping.com /xGS-water_driven_pumps (297 words)

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