Hydraulic Engineering Quotes

I love the quietness of the library, the gateway to knowledge, to the French language and medieval history and hydraulic engineering and fairy tales, learning in a very primitive form: books, something that's quickly giving way to modern technology.

Exposure to nature - cold, heat, water - is the most dehumanizing way to die. Violence is passionate and real - the final moments as you struggle for your life, firing a gun or wrestling a mugger or screaming for help, your heart pumps loudly and your body tingles with energy; you are alert and awake and, for that brief moment, more alive and human than you've ever been before. Not so with nature. At the mercy of the elements the opposite happens: your body slows, your thoughts grow sluggish, and you realize just how mechanical you really are. Your body is a machine, full of tubes and valves and motors, of electrical signals and hydraulic pumps, and they function properly only within a certain range of conditions. As temperatures drop, your machine breaks down. Cells begin to freeze and shatter; muscles use more energy to do less; blood flows too slowly, and to the wrong places. Your sense fade, your core temperature plummets, and your brain fires random signals that your body is too weak to interpret or follow. In that stat you are no longer a human being, you are a malfunction - an engine without oil, grinding itself to pieces in its last futile effort to complete its last meaningless task.

Stephenson had large wrought-iron boiler plates available and he also had the courage of his calculations... The idea found its best-known expression in the Menai railway bridge opened in 1850. Stephenson's beams, which weighed 1,500 tons each, were built beside the Straits and were floated into position between the towers on rafts across a swirling tide. They were raised rather over a hundred feet up the towers by successive lifts with primitive hydraulic jacks. All this was not done without both apprehension and adventure; they were giants on the earth in those days.

There was almost certainly a genetic contribution to Einstein’s dopaminergic traits. One of his two sons became an internationally recognized expert on hydraulic engineering. The other was diagnosed with schizophrenia at the age of twenty, and died in an asylum. Large population studies have also found a genetic component of a dopaminergic character. An Icelandic study that evaluated the genetic profile of over 86,000 people discovered that individuals who carried genes that placed them at greater risk for either schizophrenia or bipolar disorder were more likely to belong to a national society of actors, dancers, musicians, visual artists, or writers.

Ireland, like Ukraine, is a largely rural country which suffers from its proximity to a more powerful industrialised neighbour. Ireland’s contribution to the history of tractors is the genius engineer Harry Ferguson, who was born in 1884, near Belfast. Ferguson was a clever and mischievous man, who also had a passion for aviation. It is said that he was the first man in Great Britain to build and fly his own aircraft in 1909. But he soon came to believe that improving efficiency of food production would be his unique service to mankind. Harry Ferguson’s first two-furrow plough was attached to the chassis of the Ford Model T car converted into a tractor, aptly named Eros. This plough was mounted on the rear of the tractor, and through ingenious use of balance springs it could be raised or lowered by the driver using a lever beside his seat. Ford, meanwhile, was developing its own tractors. The Ferguson design was more advanced, and made use of hydraulic linkage, but Ferguson knew that despite his engineering genius, he could not achieve his dream on his own. He needed a larger company to produce his design. So he made an informal agreement with Henry Ford, sealed only by a handshake. This Ford-Ferguson partnership gave to the world a new type of Fordson tractor far superior to any that had been known before, and the precursor of all modern-type tractors. However, this agreement by a handshake collapsed in 1947 when Henry Ford II took over the empire of his father, and started to produce a new Ford 8N tractor, using the Ferguson system. Ferguson’s open and cheerful nature was no match for the ruthless mentality of the American businessman. The matter was decided in court in 1951. Ferguson claimed $240 million, but was awarded only $9.25 million. Undaunted in spirit, Ferguson had a new idea. He approached the Standard Motor Company at Coventry with a plan, to adapt the Vanguard car for use as tractor. But this design had to be modified, because petrol was still rationed in the post-war period. The biggest challenge for Ferguson was the move from petrol-driven to diesel-driven engines and his success gave rise to the famous TE-20, of which more than half a million were built in the UK. Ferguson will be remembered for bringing together two great engineering stories of our time, the tractor and the family car, agriculture and transport, both of which have contributed so richly to the well-being of mankind.

The Roman general wanted to spare Archimedes, because he was so valuable—sort of like the Einstein of the ancient world—but some stupid Roman soldier killed him.” “There you go again,” Hazel muttered. “Stupid and Roman don’t always go together, Leo.” Frank grunted agreement. “How do you know all this, anyway?” he demanded. “Is there a Spanish tour guide around here?” “No, man,” Leo said. “You can’t be a demigod who’s into building stuff and not know about Archimedes. The guy was seriously elite. He calculated the value of pi. He did all this math stuff we still use for engineering. He invented a hydraulic screw that could move water through pipes.” Hazel scowled. “A hydraulic screw. Excuse me for not knowing about that awesome achievement.” “He also built a death ray made of mirrors that could burn enemy ships,” Leo said. “Is that awesome enough for you?” “I saw something about that on TV,” Frank admitted. “They proved it didn’t work.” “Ah, that’s just because modern mortals don’t know how to use Celestial bronze,” Leo said. “That’s the key. Archimedes also invented a massive claw that could swing on a crane and pluck enemy ships out of the water.” “Okay, that’s cool,” Frank admitted. “I love grabber-arm games.” “Well, there you go,” Leo said. “Anyway, all his inventions weren’t enough. The Romans destroyed his city. Archimedes was killed.

Though time management seems a problem as old as time itself, the science of scheduling began in the machine shops of the industrial revolution. In 1874, Frederick Taylor, the son of a wealthy lawyer, turned down his acceptance at Harvard to become an apprentice machinist at Enterprise Hydraulic Works in Philadelphia. Four years later, he completed his apprenticeship and began working at the Midvale Steel Works, where he rose through the ranks from lathe operator to machine shop foreman and ultimately to chief engineer. In the process, he came to believe that the time of the machines (and people) he oversaw was not being used very well, leading him to develop a discipline he called “Scientific Management.” Taylor created a planning office, at the heart of which was a bulletin board displaying the shop’s schedule for all to see. The board depicted every machine in the shop, showing the task currently being carried out by that machine and all the tasks waiting for it. This practice would be built upon by Taylor’s colleague Henry Gantt, who in the 1910s developed the Gantt charts that would help organize many of the twentieth century’s most ambitious construction projects, from the Hoover Dam to the Interstate Highway System. A century later, Gantt charts still adorn the walls and screens of project managers at firms like Amazon, IKEA, and SpaceX.

Then there is Roman engineering: the Roman roads, aqueducts, the Colosseum. Warfare, alas, has always been beneficial to engineering. Yet there are unmistakeable trends in the engineering of the gamgster states. In a healthy society, engineering design gets smarter and smarter; in gangster states, it gets bigger and bigger. In World War II, the democracies produced radar and split the atom; German basic research was far behind in these fields and devoted its efforts to projects like lenses so bog they could burn Britain, and bells so big that their sound would be lethal. (The lenses never got off the drawing board, and the bells, by the end of the war, would kill mice in a bath tub.) Roman engineering, too, was void of all subtlety. Roman roads ran absolutely straight; when they came to a mountain, they ran over the top of the mountain as pigheadedly as one of Stalin's frontal assaults. Greek soldiers used to adapt their camps to the terrain; but the Roman army, at the end of a days' march, would invariably set up exactly the same camp, no matter whether in the Alps or in Egypt. If the terrain did not correspond to the one and only model decreed by the military bureaucracy, so much the worse for the terrain; it was dug up until it fitted inti the Roman Empire. The Roman aqueducts were bigger than those that had been used centuries earlier in the ancient world; but they were administered with extremely poor knowledge of hydraulics. Long after Heron of Alexandria (1st Century A.D.) had designed water clocks, water turbines and two-cylinder water pumps, and had written works on these subjects, the Romans were still describing the performance of their aqueducts in terms of the quinaria, a measure of the cross-section of the flow, as if the volume of the flow did not also depend on its velocity. The same unit was used in charging users of large pipes tapping the aqueduct; the Roman engineers failed to realize that doubling the cross-section would more than double the flow of water. Heron could never have blundered like this.

At the mercy of the elements the opposite happens: your body slows, your thoughts grow sluggish, and you realize just how mechanical you really are. Your body is a machine, full of tubes and valves and motors, of electrical signals and hydraulic pumps, and they function properly only within a certain range of conditions. As temperatures drop, your machine breaks down. Cells begin to freeze and shatter; muscles use more energy to do less; blood flows too slowly, and to the wrong places. Your senses fade, your core temperature plummets, and your brain fires random signals that your body is too weak to interpret or follow. In that state you are no longer a human being, you are a malfunction—an engine without oil, grinding itself to pieces in its last futile effort to complete its last meaningless task.

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There’s no on-board starter on the car. If you spin and don’t manage to keep the engine running, you have two problems: first, the engine’s stopped, so you’ll need mechanics armed with a pit starter motor to get back in business; second, it’s stuck in whatever gear you were in at the time, and because the gear shift is hydraulically powered, it’s not until the engine is running that you can then go back down through the gears. But, of course, the mechanics can’t start the car in gear, because it would race off away from them. They need to come to the car with a little ratchet spanner and manually rock the car backwards and forwards while working the spanner on the end of the gear-shift barrel until it gets back down to neutral. Only then can they put the starter in and restart the car and off you go again.

So many stories were told about him: that he had held important positions—grand dignitary of the sultan, hydraulic engineer to the diwan, or others like that

There’s a way of triumphant accomplishment that comes from lowering dead or unwanted trees. (Not to say the joys of yelling, But that feeling fades pretty quickly once you look down and see unsightly—and very stubborn—Stump milling. If you hire a landscaper or arborist to chop down the trees, they typically leave the stumps behind, unless you pay a further fee. Stump-removal prices vary widely across the country and are supported by the diameter of the stump, but it typically costs between $100 and $200 to get rid of a stump that’s 24 inches in diameter or smaller. And that’s a good price if you’ve only got one stump to get rid of . But, if you've got two or more stumps, you'll save a substantial amount of cash by renting a stump grinder. A gas-powered stump grinder rents for about $100 per day, counting on the dimensions of the machine. And if you share the rental expense with one or two stump-plagued neighbors, renting is certainly the more economical thanks to going. you will need a vehicle with a trailer hitch to tow the machine, which weighs about 1,000 pounds. Or, for a nominal fee, most rental dealers will drop off and devour the grinder. To remove the 30-in.-dia. scarlet maple stump, I rented a Vermeer Model SC252 stump grinder. it's a strong 25-hp engine and 16-in.-dia. cutting wheel that's studded with 16 forged-steel teeth. this is often a loud, powerful machine with a classy mechanism , but it's surprisingly simple to work . But, before you crank up the motor and begin grinding away, it’s important to prep the world for the stumpectomy. Start by ensuring all kids and pets are indoors, or if they’re outdoors, keep them well faraway from the world and under constant adult supervision. Then, use a round-point shovel or garden mattock to get rid of any rocks from round the base of the stump [1]. this is often important because if the spinning cutting wheel hits a rock, it can shoot out sort of a missile and cause serious injury. Plus, rocks can dull or damage the teeth on the cutting wheel, which are expensive to exchange. Next, check the peak of the stump. If it’s protruding out of the bottom quite 6 inches approximately, use a sequence saw to trim it as on the brink of the bottom as possible [2]. While this step isn’t absolutely necessary, it'll prevent quite little bit of time because removing 6 inches of the Stump grinding with a chainsaw is far quicker than using the grinder. After donning the acceptable safety gear, start the grinder and drive it to within 3 feet of the stump. Use the hydraulic lever to boost the cutting wheel until it’s a couple of inches above the stump. Slowly drive the machine forward to position the wheel directly over the stump's front edge [3]. Engage the facility lever to start out the wheel spinning, then slowly lower it about 3 in. in to the stump grinding. Next, use the hydraulic lever to slowly swing the wheel from side to side to filter out all the wood within the cutting range. Then, raise the wheel, advance the machine forward a couple of inches, and repeat the method. While operating the machine, always stand at the instrument panel, which is found near the rear of the machine and well faraway from the cutting wheel. Little by little, continue grinding and advancing your way through to the opposite side of the stump. Raise the cutting wheel, shift into reverse, and return to the starting spot. Repeat the grinding process until the surface of the Stump removal is a minimum of 4 in. below the extent of the encompassing ground. At now, you'll drive the grinder off to at least one side, far away from the excavated hole. Now, discover all the wood chips and fill the crater with screened topsoil [4]. (The wood chips are often used as mulch in flowerbeds and around trees and shrubs.) Lightly rake the soil, opened up a good layer of grass seed, then rake the seeds into the soil [5]. Water the world and canopy the seeds with mulch hay.

officials gained their posts by demonstrating their knowledge of the Confucian classics; they had no reason to be versed in hydraulic engineering per se. In other words, there was a dangerously narrow view of what qualified a man for a government position (although in some ways the appointment of ministers in modern Western democracies is not so different).

I absolutely love the library, with its sunlight atrium (though not sunlit today) and grotesque granite gargoyles and millions and millions of books. I love the quietness in the library, the gateway to knowledge, to the French language and medieval history and hydraulic engineering and fairy tales, learning in a primitive form: books, something that's quickly giving way to modern technology.