Ap World Histroy Dbq

Political, religious, and social factors affected the work of scientist in the sixteenth and seventeenth century in many ways. They were the reasons why natural philosophers questioned, studied, and continued to find new information in their discoveries. Developing a new scientific worldview must have required an abundance of controversy dealing with these important factors. There were people who believed that the discoveries made should not interfere with political power. *Thomas Hobbes, an English Philosopher, certainly believed in many theories’ that scientists had viewed. However he is best known for his political thought. Certainly his political views were included in his scientific works (Doc 7). Louis XVI, a political power, showed interest into the scientific studies. This evidently showed on a drawing to honor Louis XVI’s visit to the French Royal Academy (Doc 10). Clearly, science was encouraged to flourish because people knew the happiness of the country, for not only depending on the arms abroad but for also creating abundances at home (Doc 11). The social factor was furthermost likely to have been more analyzed in scientist works. Many were interested in what people thought of them and their studies. Scientist were even more proficient in removing their experiments completely if people disagreed. Marin Mersenne guaranteed that his experiments had been repeated more than 100 times, but however was willing to change them if someone did not agree. Others however, were confident in their studies and did not care for much criticism (Doc 1). The reason for why natural philosophers were sometimes held back was because they truly did not know what their objective was. This is most likely why they made slight progress in the sixteenth and seventeenth centauries (Doc 4). Religion was unquestionably a factor scientist considered. They took the principles of God into their works. It appeared impossible to them how things could have so much astonishing features and qualities and still have been created out of nature. They knew these things became to exist from an immeasurable wisdom and power (Doc 8). Just as God governs minds, minds have specific laws which place them above the moments of matter (Doc 12). Bible stories were used as comparisons with scientific views, such as John Calvin mentioning Moses who wrote in a popular style where all ordinary persons gifted with common sense and were able to be understood (Doc 2). He is a French Protestant theologian which may be what leads him to trust that astronomy unfolds the admirable wisdom of God. There were those who were not affected with political, religious, and social factors because they were limited on human rights. Women had certain difficulties in the scientific area. Margret Cavendish would have set her own school of natural philosophy if she would have not have feared the casting of a male school. *Margaret, a natural philosopher, was certainly interested in discoveries however, she understood the complications of having a part in this grouping (Doc 9). Studies should have been allowed from those who wished to learn, as well as those who selected to reject whatever is unidentified to them (Doc2). Both genders could have formed a friendship between intelligent associations; this would have been a great aid to the investigation and education of the truth (Doc 6). Political, religious, and social factors were massive topics. Natural Philosophers certainly were aware of their process of studies and experiments. They all had different views on the three factors causing old and new discoveries to be more interesting.

Supply chain management Essay Example | Topics and Well Written Essays - 1250 words

Supply chain management - Essay Example Some scholars revealed that they were unable to find the difference between purchase and supply chain management. Additionally, some marketing analysts have viewed supply chain management as about creating the purchasers creating good relations with their entrusted suppliers. Others argue that supply chain management is not good enough since it does not accommodate all the marketing processes from the industries to the consumers of the goods. The researchers involved these different people to sample their view about the supply chain management as part of the agenda 3. The theory of supply chain management tends to rotate between prescriptions, trend, and description. A major trend identified is the anxiety with the outcome of supply chain management on a variety of marketing functions.The current trend in the market is that supply chain is hastening the corporate theme and there is a lot of proof for this. For instance, some established companies have hired supply chain managers and there has been contest between supply chains rather than between the companies. 3. Christopher, M., (1998), Logistics & Supply Chain Management, Pearson Education Limited, Harlow. The above stated example gives a major problem in the discipline of supply network 4. Most businesspersons use an already established domain related with supplier-buyer behavioral mechanism although it has its own weaknesses. Most of these problems relate management issues, choosing the best supplier of goods among others and these can result from the failure of this field to try the broader concept of

Thermography detection on the fatigue damage of the specimen alloy Essay

Thermography detection on the fatigue damage of the specimen alloy - Essay Example Fatigue occurs when a material is subjected to periodic stress which is below its tensile breaking or yield stress but which is enough to cause permanent damage. The formal definition of fatigue as given by Wikipedia (n.d.1) is: [F]atigue is the progressive, localized, and permanent structural damage that occurs when a material is subjected to cyclic or fluctuating strains at nominal stresses that have maximum values less than (often much less than) the static yield strength of the material. It is because fatigue happens so quietly and insidiously that makes it very dangerous even resulting in loss of life. Sadananda et al (2003) assert that "Fatigue is the principal cause of premature failure of engineering components". Many structures such as aeroplanes, oil rigs and bridges, to name just a few, are exposed to fluctuating stresses. The engineering approach falls into two broad categories of dealing with stress induced fatigue. The first part is prediction of the lifetime of a material under stress. This model will provide recommendations on how frequently materials have to be replaced. The second approach is to predict how far a crack can grow before failure happens. Detection and prediction of failure of cracks can mean the difference between life and death of users of these facilities. "The basic method o S-N Curves "The basic method of presenting engineering fatigue data is by means of the S-N curve, a plot of stress S against the number of cycles to failure N." ( Key to Steel, n.d.) The S-N curves enable prediction of how long a material will last in terms of cycles of loading. Figure 1. A S-N Plot for an aluminum alloy (Kelly, 1997) Kelly (1997) explains that cracks go through three stages of formation, propagation and failure. Stress Intensity factor K "Stress Intensity, K, is a parameter that amplifies the magnitude of the applied stress that includes the geometrical parameter Y (load type)" (Wikepedia, n.d.2). This factor measures the degree to which stress is magnified around a crack. The loading around a crack falls into three modes I, II and III. Figure 2. Three loading modes (Key to Steel, n.d.) The three modes are: Mode 1: opening or tensile mode (the crack faces are pulled apart) Mode 2: sliding or in-plane shear (the crack surfaces slide over each other) Mode 3: tearing or anti-plane shear (the crack surfaces move parallel to the leading edge of the crack and relative to each other) (Key to Steel, n.d.) The most common mode is mode I and this is what is used in most calculations. The intensity factor, K, determines the rate at which a crack will propagate and hence the lifetime of the material. The mathematical relationship is defined by Callister (1994, cited by Kelly(1997)) as: This equation relates the rate of growth of a crack to the change in intensity factor K. In this equation A and m are dependent on the materials and da is the change in crack length while dN is the change in number of stress cycles. The change in K is defined by: Where Kmax and Kmin are the maximum and minimum intensity factors respectively, Y is a constant dependent geometry of the material and is the applied stress on the material. When this equation is re-arranged and integrated it becomes: This equation gives Nf, the estimated number of cycles before