how did early fire sprinkler system work before electronic controls?
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As most still work there is a fusable link which is often a bulb (blocking the outlet pipe) full of liquid which expands when heated breaking the bulb and opening the pipe.
816259
You are asking about the field of hydraulics. Knowledge and study of this goes back at least to ancient Greece. (It was Archimedes who, according to legend, solved the puzzle of the dishonest goldsmith when he submerged himself in his bath after puzzling over the problem for days, noted the water overflowing the tub, and ran naked through the streets shouting "I've got it!" Only he shouted it in Greek, so it came out "Eureka!" (As far as running naked through the streets goes, the Greeks took a more liberal view of such behavior than our present society. If you were to try that, you'd probably be chastised firmly.) \nBut I digress. Realizing that liquids are essentially incompressible, he was able to determine that the goldsmith was in fact a crook/Republican. From this humble start, modern hydraulic studies began.
550838
Well, i was involved with some folks who were catching the rain off their rooftop in barrels, then using it to water gardens etc.  They had to modify the downspouts to go into the barrels.  Any way to catch, direct and store the water will work.
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Like another person stated it depends on what type of ship you were on. My first ship was an Ammo Ship, the Mount Baker AE-34 and my GQ station was the main sprinkler system system for the cargo decks. My second ship the Sims DDG-18 was Mount Capt.That involved if the computerized fire control went out I was to fire the gun.
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Imagine a column of water.  The pressure is higher at the bottom of the column because of all the water above it pushing down.  Now, a closed water system can be treated as a column for determining the water pressure.  You measure from the highest point that water is in the system down to the height of the place where you taking the measurement.  \n\nIf the water tower is 200 feet tall and the building is 90 feet tall, the people on the top of the building will have 110 foot column forming their water pressure.  People in the bottom of the building will have the full 200 foot tall column of water forming their water pressure.  \n\nBecause we are dealing with a fluid, the water can exert its force around corners and the column doesn't have to really be straight up and down.  It can even have u-turns and loops.  All that really matters is the height of the faucet relative to the water level in the reservoir.
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Water Clocks\nClepsydra\nWater clocks, along with sand clocks, were one of the earliest forms of clock that didn't rely on the sun or other astronomical phenomena. As such they could be used at night and/or indoors. The Greeks called them "clepsydra", a name which means "water thief". It's thought that the actual use of these clocks was not normally to track "time of day" but to measure duration.\nThe earliest water clocks - which date back to at least 1500 BC - were very simple and basically consisted of a bowl with a hole! There were three main ways of using this to tell time: \nA bowl with a small hole in the base would be filled with water. As the water dripped out, the level would fall and the elapsed time could be read off according to markings on the bowl. \nOne water container would drip into a marked bowl which could be read accordingly. \nA bowl with a hole was placed in a water container and as it gradually sank it would fill and the elapsed time could be read according to the usual markings. \n\nMechanical Water Clocks\nAs technology advanced, water clocks became more elaborate. The principle remained the same - something emptying, something filling, or something sinking. However a variety of ingenious mechanical mechanisms were created for taking this motive force and making use of it. Other innovations included more sophisticated control of water flow than a drip.\nThese mechanical water clocks would display the time in a way closer to the form we know today, often by means of dials or pointers. Some of them also generated motion in the form of moving figures and ringing bells.\n\n\nTowers\nMechanical water mechanisms were used as the basis of some public clocks. One of the most famous was the Horologion of Andronikos of Kyrrhos, also known as the Tower of the Winds. The Tower of the Winds was built in the Athens marketplace, probably in the 1st century BC. It is an octagonal structure with the faces illustrating the winds along with sundials, mechanical time indicators and assorted astrological data.\nAnother famous water driven clock tower was Su Sung's Tower, also known as the "Cosmic Engine". The Chinese emperor employed Su Sung to build this famous astronomical clock tower. This was completed in 1094 AD and was a 30ft high tower with a 10ft high observation platform atop. The water powered mechanism showed the time, controlled mannequins ringing bells and kept the observational equipment correctly aligned with the heavens.
1100109
They must have varying amounts of water.maybe according to how the pipes were posed and the size of the pipes and many other factors. You should have typed all the details to be able to give you the complete answer
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It was invented by Micheal Faraday.  It was perfected by Robert Bunsen and his assistant, Peter Desaga.\n\nSee http://en.wikipedia.org/wiki/Bunsen_burner
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Near East, about 100 BC, it is believed from archaeological finds - ceramic vessels with metal rods, thought to have contained saline solutions.\n\nModern use of batteries was introduced by Galvani around 1790.\n\nThe principle is the same as for modern batteries: connected galvanic half-cells. The use seems to have been for electrolytic coating.
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Some models in addition utilize compressed air to atomize  the water.  Most though simply utilize fogging high pressure mist into freezing air.  Collision in the air of two streams of water is another means of breaking the water into small dropletts which will freeze before hitting the ground, this actually requires less energy on the parts of the electric pumps ie lower pressure and higher volume of flow.
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Fire, a pressure vessel, a press and a filteration system.
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electropneumatic circuit \n\nhttp://www.festo-didactic.com/ov3/media/customers/1100/0000607001156324537.pdf\n\n:>peace
1183445
Those are farming plots.  Many places in the southwest, have these circular irrigation systems where there is a fixed stand in the middle of the field and a long arm with sprinkers on it extends out from the stand to a wheel on the far end.  Using the wheel, the arm rotates in a slow circle around the field (like the hand on a giant clock face) watering the plants beneath it.  The result is a circular field that is quite distinct looking from the air.
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The water supply was at a higher elevation than the fountain, which created pressure. It's the same principle as community water towers of today.
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Built into each device is a microprocessor with a built-in miniature diferential hydrometer.  They detect the slightest presence of running water.\n\nThe only solution is to toss these devices.
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Archamedies. It was originaly a way to pump water.
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The first use of fire control and fire making is\n generally attributed to Homo Habilis. This human ancestor\nlived between 2.2 to 1.6 million years ago. So the use\nof fire by man is roughly 2 million years old.\n  Most anthropologists consider fire making as the most important human invention. It made the difference between\nlife and death in climates where cold nights would have\nkilled them. Humans used fire to clear large tracts of\nland from uninhabitable thick jungle and to drive herds\nof prey over cliffs. Cooking food freed meats from harmful parasites and made it more digestible.\n Then fire was used to extract metals from the earth,\ncreate steam for steam engines, ignited in sophisticated ways in the internal combustion engine, turbo jets and rockets. \n Weekend cooking on the grill is a favorite summer pastime\nand it's done over an open fire.