Engineering by discipline

221 quotes found

"THEORY and practice principally distinguish science from arts, and accordingly most branches of knowledge pass under one or the other of these denominations; tho we must allow, that our ideas in this respect are not always sufficiently precise; for we are often at a loss in naming the branches of knowledge where speculation is joined with practice. There are rules for the operations of the mind, and others for those of the body; the latter being confined to external subjects, require no more than the assistance of the hand to perform them. Hence proceeds the distinction between the liberal and mechanic arts, and the preference given to the former, tho very unjustly in many respects. The mechanic arts depending upon manual operation, and confined to a certain beaten track, are assigned over to those whom prejudice places in a lower class: and necessity rather than taste and genius, compelling them to the exercise of these arts, the arts themselves in time became subject to contempt; whilst the free operations of the mind were claimed by others, who, because they were more exempt from indigence, possibly thought themselves more favoured by nature. But this assumed superiority of the liberal over the mechanic arts, from the former's employing only the attention of the mind, and from the difficulty of excelling therein, is sufficiently counter-balanced by the greater utility commonly arising from the latter."

- Mechanical engineering

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"The work before us is a proof that the doctrine of mechanics is of the utmost importance to mankind in general, and to civil society in particular, which could hardly subsist without it. The author of this work is Mr. W. Emerson who is well known in the literary world, from several ingenious writings with which he has obliged the public; some of which have passed under our consideration since the commencement of the Review. In this treatise Mr. Emerson has laid down the fundamental principles both of theory and practice, and demonstrated most of them from the common elementary geometry, and the rest from the common rules of algebra; which is certainly the best method of rendering a treatise of this kind useful to the generality of readers, the fluxionary calculus being too difficult for them to understand. The work is divided into thirteen sections: the 1st. contains the general laws of motion. 2. The laws of gravity, the descent of heavy bodies, and the motion of projectiles. 3. The properties of the mechanical powers; the balance, the leaver, the wheel, the pulley, the screw, and the wedge. 4. The descent of bodies upon inclined planes, and in curve surfaces; and the motion of pendulums. 5. The center of gravity, and its properties. 6. The centers of percussion, oscillation, and gyration. 7. The quantity and direction of the pressure of beams of timber, by their weight; and the forces necessary to sustain them. 8. The strength of beams of timber in all positions; and their stress by any weight acting upon them, or by any forces applied to them. 9. The properties of fluids, the principles of hydrostatics, hydraulics, and pneumatics, 10. The resistance of fluids, their forces and actions upon bodies; the motions of ships, and the positions of their fails. 11. Methods of communicating, directing, and regulating any motion in the practice of mechanics. 12. The powers and properties of compound engines; of forces acting within the machines; and concerning friction. 13. The description of compound machines or engines, and the methods of computing their powers or forces; with some account as the advantages or disadvantages of their construction."

- Mechanical engineering

0 likesEngineering by disciplineChronologically ordered theme pages to be converted to alphabetical ordering
"Enterprise engineering is an emerging discipline for developing enterprise capabilities. It is a multidisciplinary approach that takes a broad perspective in synthesizing technical and nontechnical (political, economic, organizational, operational, social and cultural) aspects of an enterprise capability. Enterprise engineering is directed towards enabling and achieving enterprise-level and cross-enterprise operations outcomes. Enterprise engineering is based on the premise that an enterprise is a collection of entities that want to succeed and will adapt to do so. The implication of this statement is that enterprise engineering processes are more about shaping the space in which organizations develop systems so that an organization innovating and operating to succeed in its local mission will—automatically and at the same time - innovate and operate in the interest of the enterprise. Enterprise engineering processes are focused more on shaping the environment, incentives and rules of success in which classical engineering takes place. Enterprise engineering coordinates, harmonizes and integrates the efforts of organizations and individuals through processes informed or inspired by natural evolution and economic markets. Enterprise engineering manages largely through interventions (innovations) instead of (rigorous/strict) controls."

- Enterprise engineering

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"Rex Buchanan, interim director of the Kansas Geological Survey, was watching a Kansas City Royals game in September 2014 when his cell phone started buzzing with alerts from the USGS. Tremors were shaking south-central Kansas near the state's border with Oklahoma. This was not a surprise, because more than 100 earthquakes had visited Kansas during that year, up from an average of one every two years. But the tremors were growing stronger and soon reached magnitude 4.2. Kansas governor Sam Brownback convened an induced-seismicity task force to evaluate the quakes. The task force, chaired by Buchanan, recommended restricting injection volumes within five seismic zones across two counties. How were Kansas officials able to reach a consensus? “I don't think we could come up with any other explanation,” Buchanan says. “You see a level of activity like we saw: a dramatic, dramatic increase, and in almost exactly the place where the really large-volume wells are going in—and where you see the same correlation in Oklahoma. It's pretty hard to come to any other conclusion.” He adds that he and his colleagues had the benefit of watching science and regulations develop in Ohio, Texas and Oklahoma. So far the measures Kansas took seem to have had an impact. “Certainly our activity has been down lately,” he says, in terms of both earthquake rates and size. “But I have pressed people real hard not to take the approach that this is some sort of problem solved, because it's not.”"

- Petroleum engineering

0 likesEngineering by disciplineEnvironment
"In Shell’s Bellaire lab, one of the nation’s best-funded research facilities, sat the contraption Willis had assembled at home over the weekend. It was a goldfish bowl, filled with liquid Knox gelatin and some plaster in it. Willis had used the gelatin to simulate rock—appropriate, given Hubbert’s work on laws of scaling—and had stuck an Alka-Seltzer bottle in the middle of it to mimic a well. He’d put the liquid gelatin in the fridge and let it set, then pulled out the bottle. Then he’d used a baster to pump a slurry of plaster of Paris down the hole, filling it until the plaster began to push its way into the gelatin, forming fractures. As their theory predicted, the fractures were vertical. Although Willis’s setup was kludged together, Hubbert immediately realized it was what they needed to win over the field engineers: a clear demonstration. They’d have an opportunity to make their case at an internal Shell conference in early 1956, in several weeks’ time. They got to work on building a larger version of the model. To replace Willis’s goldfish bowl, Hubbert scoped out bigger aquariums on sale at local shops. At the Shell conference, Hubbert and Willis explained their experiment and showed the plaster casts, first from one angle, with the fractures flaring out from either side of the well. Then they rotated the cast, so the audience could see that the fractures were thin and sharp, like a knife’s blade. And of course, they were undoubtedly vertical. Within a week of this demonstration, field engineers began sending in data they’d collected after fracturing wells. Some of them had put rubber plugs down wells to form an impression of the wall. Others sent cameras down the hole. This field data showed the fractures were indeed vertical. The theory was right—and finally the engineers believed it. Willis’s contraption “had a magical effect,” as Hubbert put it. “It made Christians out of these people.”"

- Petroleum engineering

0 likesEngineering by disciplineEnvironment
"When we wrote Ecofeminism we raised the issue of reductionist, mechanistic science and the attitude of mastery over and conquest of nature as an expression of capitalist patriarchy. Today the contest between an ecological and feminist world-view and a worldview shaped by capitalist patriarchy is more intense than ever. This contest is particularly intense in the area of food. GMOs embody the vision of capitalist patriarchy. They perpetuate the idea of ‘master molecules’and mechanistic reductionism long after the life sciences have gone beyond reductionism, and patents on life reflect the capitalist patriarchal illusion of creation. There is no science in viewing DNA as a ‘master molecule’ and genetic engineering as a game of Lego, in which genes are moved around without any impact on the organism or the environment. This is a new pseudo-science that has taken on the status of a religion. Science cannot justify patents on life and seed. Shuffling genes is not making life; living organisms make themselves. Patents on seed mean denying the contributions of millions of years of evolution and thousands of years of farmers’ breeding. One could say that a new religion, a new cosmology, a new creation myth is being put in place, where biotechnology corporations like Monsanto replace Creation as ‘creators’. GMO means ‘God move over’. Stewart Brand has actually said ‘We are as gods and we had better get used to it.’"

- Genetic engineering

0 likesBiologyEngineering by discipline
"Evaluating the potential threat posed by advances in biotechnology, especially genetically modified organisms (GMOs), and synthetic biology remains a contentious issue. The rapid development of the tools of molecular biology and metabolic engineering has enabled the development of chimeric organisms which possess characteristics which are not native to the wild variant. This is commonplace in the area of biomanufacturing, where genes are introduced into organisms such as E coli and products manufactured via large-scale fermentation. More recently, entire metabolic pathways, albeit of limited complexity, have been engineered into organisms, for example, for the production of artemisinin in yeast. In addition to such metabolic engineering projects, whole genomes are being sequenced, leading to the possibility of creating organisms de novo. Numerous lectures, briefings and articles have argued that the dual use nature of biotechnology, the training of foreign students in American universities, and the easy availability of information on the internet have given potential adversaries access to biological weapons of unimagined which pose an existential threat. Some believe that, inevitably, these advances will lead to a catastrophic biological attack. Others have argued the opposite that making all information publicly available will enable a more universal “white biotechnology” which will ultimately monitor the field and provide the means to defeat any threat developed by adversaries. It has been argued that, despite these advances, the scientific and technical requirements, as well as the fundamental laws of natural selection, will prevent such an attack."

- Genetic engineering

0 likesBiologyEngineering by discipline
"At first, by controlling the banking system we were able to control corporation capital. Through this, we acquired total monopoly of the movie industry, the radio networks and the newly developing television media. The printing industry, newspapers, periodicals and technical journals had already fallen into our hands. The richest plum was later to come when we took over the publication of all school materials. Through these vehicles we could mold public opinion to suit our own purposes. The people are only stupid pigs that grunt and squeal the chants we give them, whether they be truth or lies. There is no such thing as the silent majority because we control their cry and hue. The only thing that exists is an unthinking majority and unthinking they will remain, as long as their escape from our rigorous service is the opiate of our entertainment industry. By controlling industry, we have become the task masters and the people the slaves. When the pressure of daily toil builds to an explosive degree, we have provided the safety valve of momentary pleasure. The television and movie industries furnish the necessary temporary distraction. These programs are carefully designed to appeal to the sensuous emotions, never to the logical thinking mind. Because of this, the people are programmed to respond according to our dictates, not according to reason. Silent they never are; unthinking they will remain."

- Social engineering

0 likesEngineering by disciplineSocial sciences