Materials science Assignment Example | Topics and Well Written Essays - 250 words

Materials science - Assignment Example The development of bullet proof glass remains considered as an achievement of material science in the hope of offering a solution to the concern of safety in its usage. Achieving a product that would allow the transparent qualities of glass and still offer protection from lethal products such as bullets was a milestone achievement. Such is observed as an infusion of the bullet being a technology perceived under the same field of material science (Hsieh & U.S. Army Research Laboratory, 2004). Ballistic glass involves the infusion of two sets of materials that do not include the renown Kevlar used in the generation of bullet proof vest. The technology combines thermoplastics with the soft glass to allow a thick layer of ballistic panels. The aforementioned incorporation of different approaches ensures that the glass panes are ballistic and durable. The ballistic glass has found critical applications in banking and transit sectors. The glass is used in developing the teller stations in banking halls. It is, also used in developing armored vehicles, which aim to protect the users while driving in volatile locations. Additionally, the glass is used for protection of the VIP dais during the engagement of public events (Johnson, 2006). Hsieh, A. J., & U.S. Army Research Laboratory. (2004). The effects of PMMA on ballistic impact performance of hybrid hard/ductile all-plastic- and glass-plastic-based composites. Aberdeen Proving Ground, MD: Army Research Laboratory. Johnson, G. R., Hertel, E. S. J., Grady, D. E., Holmquist, T. J., Lopatin, C. M. Sandia National Laboratories., United States. (2006). High strain rate properties and constitutive modeling of glass. Washington, D.C: United States. Dept. of

Business management (innovating ) Essay Example | Topics and Well Written Essays - 1000 words

Business management (innovating ) - Essay Example Some of these concepts include agency or power, obligatory point of passage, actors, and the actor network theory among others. This paper shall delve in the significance of these concepts if applied to the case of the life and death of an aircraft, the masses analyses, and the Callon scallops paper. In this chapter, authors Law & Callon (1992) explore the consequences associated with the technical changes that happen during the duration of completing a technological innovation. They believe that even by starting technological innovation in a particular industry let alone an aircraft industry, changes can happen at some point during this duration. For instance, a technological project may require hundreds of thousands of ideas, thousands of workers, millions or even billions of money, highly intellectual specialists on sciences, engineering, and business, and, of course, the materials needed in the operation such as machines, designs, parts, etc. (Law & Callon 1992). The socio-technical context of technical change suggests the importance of having a global network, which harmoniously organizes everything in a sense that as consequences for every individual actor may become too significant to affect the overall outcome of the technological project, adjustments can be made accordi ngly. This network of actors makes the operation more manageable and easy to understand; it generates more time, space, and a set of resources in which innovation may take place (Law & Callon 1992). The strength of the global network depends on how strong its external connections, internal mobilization and obligatory point of passage are. For example, in building an aircraft, local network may have to come up with a design and develop production facilities; global network may serve as the securer of operations funding. In other words, the global network that is being talked about and employed in this context of the paper means

U07d1, u07d2, & u07d3 Coursework Example | Topics and Well Written Essays - 750 words

U07d1, u07d2, & u07d3 - Coursework Example At that point, Mars will be a reasonably habitable world for a few billion years longer. As the sun grows ever hotter and its diameter begins to expand, Mars will enjoy ever more abundant solar energy resources, as well as milder surface temperatures. Of course, with its puny atmosphere and total absence of any planetary magnetosphere, it will offer little protection against the eruptions of radiation from the increasingly bloated solar corona, but underground habitats on Mars should be quite sustainable for a very long time. About 4 billion years from now, the Sun will become a full-blown red giant, with a diameter large enough to swallow the Earth. At that point, there might be some viable space colonies maintainable in the asteroid belt. The Sun will be blowing off huge clouds of its outer atmosphere and the attendant radiation will make it rather a toxic environment for life; the vast amounts of electrically charged plasma flowing outward from the sun, and the contorted magnetic fields accompanying it, would also make things difficult for any unshielded electronic devices. Also, the massive outflows and increased radiation output from the Sun are likely to destabilize the Kuiper belt, and send lots of new comets zooming through the inner solar system, and smashing up the inner planets (Mars included). But of course, eventually the solar system will have to be abandoned altogether before the Sun finally goes nova and shrinks down into a white dwarf. With no nearby planets left (all swallowed by the Sun during its red giant stage), the remains of the solar system will become frigid and pretty much uninhabitable. Hence we can say that the migration of life away from the Sun will be gradual. Sun's activity will "squeeze" life out toward the outer planets and from there onward toward nearby solarsystems. 2. "Unknowingly, we plow the dust of stars, blown about us by the wind, and drink the universe in a glass of rain." —Ihab Hassan, Egyptian theorist. What does this quote mean to you? How is it, or can it be, related to astronomy, and to what you are learning? To me there is no greater mystery than the fact that we inhabit a universe so incomprehensibly vast, yet so devoid of obvious signs of intelligent life.   There is something so haunting about this immense emptiness; it is as if we have lit a candle in the dark, only to discover that what we thought was a cozy hut built just for us is really a yawning, alien cathedral without worshippers, architects or gods.   Galaxies swarm around us like fireflies in every direction, containing billions of trillions of suns, untold quadrillions of worlds across billions of years in time.      While the â€Å"cosmic shock† problem has been tackled by many other serious thinkers since those early visionaries of the post-Hubble age, it remains essentially unsolved.   Perhaps it will require a mystic — some modern Buddha or Mohammed, meditating in a metaphorical cave, conte mplating the mysteries of the universe revealed by science — to arrive at some new set of revelations for our cosmic age.   That may sound like dangerous nonsense to some, but stranger things have happened before.  Ã‚   Scientist-mystics like Sagan and Clarke have come as close as anyone to make us feel at home in this strange Cosmos, but the Great Silence still looms.   Perhaps if there is  contact and childhood’s end  there will be a resolution to this crisis; until then we are left speculating, wondering and groping for

Human Understanding Essay Example | Topics and Well Written Essays - 750 words

Human Understanding - Essay Example It is indeed undeniable that people recreate the things that are already existent within their own society. The fact that they have already been able to see what they could do regarding a certain type of field, they intend to even do better the net time that they deal with the same invention. Yes, humans never get tired of reinventing everything there is in the environment. Why is this so' Human intelligence has always been noted by philosophers as the primary factor that makes the human creation different from that of the other God-made creations. The humans' ability to innovate their own achievements to even better results for the present generation to see, has particularly noted them to be those who are capable of reinventing themselves to be able to evolve from generations to generations. Hence, the ways by which humans understand the things around them clearly defines the capability of humans to efficiently use intelligence for their best benefits. This is primarily because of the fact that the human brain never ceases to improve its way of reasoning out especially when it is nourished in the right procedure. Along with this, considering critical thinking and its importance is also relative to the matter. Critical thinking is an important aspect to the logical feature of a person and the acquisition of knowledge. It mainly employs the usage of the human ability of logical analysis to develop an adequate and proper judgment regarding a specific scenario that a person is faced with. It is the analysis of the propositional arguments, which are presumed to be true and the evaluation of the information in forms such as evidences and subsequent facts. Thus, it is important to critically analyze and examine all the facts that are available to create a clear and concise jud gment regarding a specific issue. Performing a critical analysis is not usually easy for an individual because of the abundancy and ambiguosity of the facts pertinent to the scenarios that are to be analyzed. Some cases requires further scrutiny to uncover unknown details which are really important thus initial skepticism and open-mindedness are often required in developing good critical thinking. Take for example a certain job regarding work relation in a specific office. A certain piece of valuable went missing and the whole work community in the office is already chattering blaming a shy and timid employee as the thief who stole the missing valuable. Employing critical thinking would not let someone to hastily judge that employee because of his social diffidence. Instead of inappropriate judgment, analyze first the case at hand and evaluate the details pertinent to it to find clues and information leading to the solution. Failure to practice critical thinking will only lead to inaccurate and often wrong conclusion thus neglecting the purpose of the human logical capabilities. Proper judgment requires the critical thinking and analysis of the available information and specific details. It is very important that one must first utilize his or her brain before jumping to any hasty judgment to avoid mistakes and further aggravation of the problem already at hand. Thus, solution and accurate knowledge can only be attained by having critical analysis of the facts leading to the plausible conclusion. Conclusion Overall, it could not be

Comparing heat loss between a single test tube Essay Example for Free

Comparing heat loss between a single test tube Essay I aim to prove whether heat loss is reduced by huddling test tubes, as opposed to the heat loss of a single test tube, which is more exposed to the air. Background Information Controls Variables The number of test tubes. Time taken to carry out the experiment. The number of thermometers. Starting temperature. Amount of water added to each test tube. Final temperature. 15 readings, which are repeated for an average. The number of elastic bands required supporting the huddle. The number of beakers and stands required supporting the test tubes. Prediction I predict that the single test tube is more exothermic than the test tubes in the huddle. This is because, by huddling, a smaller surface area of the test tubes is exposed to the air. Thus, less heat is given off. Heat can be lost in various ways. However, by huddling the test tubes, heat loss via convection and radiation can be reduced. Examples where huddling is vital for survival occur in nature. As evidence that huddling is a learned response, animals like penguins and seals would die if they were not taught these basic skills. If my prediction is correct my graph should resemble the one shown below: Temp ( C) 70 35 0 15 Time (mins) Method To make comparisons between the temperature loss of a single test tube and the test tubes in a huddle, I required eight test tubes. First, I placed one test tube in a stand and gave it a thermometer. The remaining seven test tubes were held together by an elastic band and placed in a large beaker. A thermometer was then placed in the centre test tube of the huddle. Next, my teacher poured boiling water to the brim of each test tube. At this point, I started the stop-clock, reading each thermometer every minute for 15 minutes and recording the temperature in a results table. After documenting the final result, I refreshed the water in each test tube and repeated the experiment to record my second readings. Conclusion My results show that the test tubes in a huddle lost 24. 5 C and the single test tube lost 28 C. Thus the test tubes in a huddle restored 3. 5 C more than the single test tube. As a result the test concurs with my prediction, that the single test tube is more exothermic than the test tubes in the huddle. I also configured results to show the percentage change of the single test tube and the test tubes in a huddle. The percentage change for the single test tube was 33. 26% and 24. 809% for the test tubes in a huddle. The percentage change for the test tubes in a huddle was 8. 451% less than that of the single test tube. Thus indicating the single test tube has a higher percentage change. Evaluation. My investigation into the heat loss of a single test tube and test tubes in a huddle was successful as the results coincide with my prediction and predicted graph. Thus proving my results was correct. It was imperative that I made the experiment a fair test by complying with the following: The size of each test tube had to be the same. Â  The temperature of the single test tube and the test tubes in a huddle had to be the same before the experiment began. The amount of water added to each test tube had to be the same. Each result had to be recorded every minute. Â  The thermometers had to be kept still, inside the test tubes, at all times e. g. no picking up in order to read the temperature. This is so the temperature is not affected. To improve my investigation, I would accomplish the following: Â  By repeating the experiment more than twice, I can get more readings and thus improve my average results. This makes the experiment more accurate. Â  I can begin the experiment at higher temperatures. This will give me more varied results. Beginning the experiment at higher temperatures will also enable me to expand the time. Providing me with more results. By carrying out the same experiment in different temperatures, I can resolve how much the results are affected and make comparisons. Â  I could also cover the test tubes in different materials like cotton and foil to resolve whether they affect the temperature. Â  I can differ the water level in the single test tube compared to that of the test tubes in a huddle to determine whether the amount of water affects the results. Christopher Smith 5/7/2007.

The Policing Of Drugs Criminology Essay

The Policing Of Drugs Criminology Essay Canada has a problem with drug suppliers and the individuals that use these drugs. Canada has a unique way of dealing with the problem that has been working effectively. This is supply reduction, demand reduction, prevention, treatment, harm reduction and public education and The police and the communities all working together toward the goal of reducing drugs all over Canada. It is important to target the communities and make sure that they understand what the ongoing problem is so that they can contribute to eliminating the source. (University, 2011) The whole community must be involved in the needs of society when members are dealing drugs in their community. Individuals must not ignore this serious situation. It may not seem that dire if your neighbour is selling drugs but it really is that dire. There will be increased amount of traffic from individuals looking to purchase drugs at all hours of the day and night. It provides an unsafe environment for all the families that live near or around these types of unwanted behaviours. Drugs bring a whole list of concerns to the table such as many types of unwanted individuals will be trolling the neighbour from drug addicts to gangs. There is concern that there could be break-in on houses and cars because of drug addicts needing items to sell or trade for drugs. Gang members are usually the ones mostly selling the drugs. This is because this is where they frequently get their primary source of income. This is so that they will be able to fund other illegal activities that will benefit them even more. The many types of illegal activities they could be involved in are organized prostitution, weapons related offences, smuggling of individuals, travel document counterfeiting or credit card skimming. Gangs use violence to increase their situation and use their unpleasant character to advance their illegal endeavors. Drug trafficking is commonly connected to other more serious crimes. It is often used to sponsor the more violent and detrimental behavior of the illegal terrorist organizations. This is because of the major cash remuneration resulting from moderately negligible time and venture. The types of drugs they tend to sell are crack cocaine, ecstasy, crystal methamphetamine and marijuana. Gangs tend to sell drugs on the streets or from inside a home in communities. This can lead to turf wars or fights over drugs and who gets to sell in which territory. Drugs can be quite profitable if the gang has enough clients so situations of gang violence in communities can be worrisome to all involved living in and around these types of individuals. The problem with drugs is far reaching and has many consequences than just the end user because along the way many other illegal activities are occurring. A major concern is individuals making or growing drugs in houses. Houses in which have been used for growing marijuana need to be condemned, as they are not fit for living in due to number of health concerns. One such problem is the amount of mold due to all the moisture in the house. It is important to make sure that individuals are safe but there is a far larger concern than the growing of marijuana. One such problem would be the methamphetamine labs exploding are a huge concern a s they affect the houses around them with a potential fire or even result in fatalities. Individuals in the community must not fear speaking out against the drug dealers. It is important to notify the police and work with your communities to control the problem. Catching a problem before it explodes into a more severe problem assists to remove the situation from the communities. When individuals are on drugs this poses a danger to innocents such as children and pets when individuals are on drugs. Drugs cause individuals to fight and be disorderly in their conduct. Educating the public is important so that they understand what to look for and what they need to be reporting to make their community a safe place. Crime Stoppers are a great way for the general public to be able to make a complaint and help in eliminating drugs in their communities. The Calgary Police Service has been effective in recruiting police officers that operates as the liaison between the police services and Crime Stoppers. The Calgary Police services Gang Strategy Unit and the Drug Unit working with Crime Stoppers, can do a lot to prevent and reduce the harmful effects of drugs. This could be in the form of recommending the users attend drug rehab or forcing them through arrests as part of a rehabilitation program. Making sure that the dealers and gang members are arrested and procedures are put in place so that they cannot easily have access to selling drugs. This could be through bail requirements or the sentencing of having a curfew, no cell phone usage, no associating with other known offenders. Many types of other offenses are involved with the problem of drugs. It is important that all the units work together to share vital information to allow for the most effective means of preventing the drugs on the streets and in homes. (The Calgary Police, 2011) The Calgary Police Service and the Calgarys Gang Strategy unit is dedicated to bringing to a halt the violent behavior and eliminating the illegal actions of the gangs that surround drug dealers. The Organized Crime Operations Centre or the OCOC has been developed to organize the prevalent resources essential to deal with the present gang predicament directly. The organization is able to exchange vital information, methods and demonstrated approach with other North American metropolitan cities that have effectively dealt with the illegal gang behavior. The Calgary Police Service has established an inclusive initiative to curb the gangs unsuitable behavior. The Calgary Police Service has a four-point gang strategy, which is through education, prevention, investigation and disruption. (The Calgary Police, 2011) The Drug Unit coordinates investigations of illegal drug distribution within Calgary. It is responsible for investigating street-level drug dealers, targeting crack houses and other locations where drug use may be common. Certain officers are qualified to give expert testimony in court. Members of the Unit also deliver educational and awareness programs for various groups including schools, community associations and healthcare agencies. (The Calgary Police, 2011) It is important that the police and community are able to provide each other with valuable information. This is so that it keeps all organizations are current on the latest status of the safety of the communities. When communities work, together much can be achieved in terms of removing the unwanted behaviours from a particular community. Awareness is the key to initiating any type of investigation into drug issues. Undercover police are used to infiltrate the gangs that sell drugs to street level dealers. The problems associated with drug abuse endure and continue to expand in most areas of the globe. The international abuse of prohibited drugs and the drug trafficking state of affairs is becoming further multifaceted. Many factors contribute to this including the recreational drug abuser with a higher disposable income; a increase in demand and ease of accessibility for most varieties of prohibited drugs; the cultural, economic and political transformations caused by the instant interactions and globalization that have been the forerunner to progressively more wide open borders between many different countries. The drug trade involves all aspects of problems that contribute to the increase of drugs all over the world in most countries. This would be through the producers, growers, users, suppliers, couriers and dealers. (University, 2011) The illegal drugs are a substantial encumber on the Canadian economy and the individuals that abuse these substances. It has been estimated it may cost Canadians around $9 billion annually for the expanse of dealing with the drug issue. This would be including the court system, police services, imprisonment, productivity deficit, medical expenditures and work non-attendance. Those that are addicted to these illicit drugs can also be a threat to themselves, their families, and their communities. (University, 2011) The approach that the Canadian government has taken towards the drug is much different from other countries such as the United States, which has had a war on drugs. Canadas National Anti-Drug Strategy aims to prevent illegal drug use through these following methods: supply reduction, demand reduction, prevention, treatment, harm reduction. The strategy aims to enhance the necessary treatment programs, drug users health and everyone understanding of illegal drugs through education. (University, 2011) Community based programs are used to deal with deterrence, health endorsements, drug treatment, and harm reduction issues. Public education campaigns on substance use and drug abuse, with a specific focus on the youth, to provide Canadians with information to facilitate knowledgeable health and lifestyle decisions. (University, 2011) Supply Reduction is used to control the availability of drugs through stopping the production of crops, smuggling and trafficking. It is important to provide an alternative crop for farmers to grow if the illegal crop is to be prevented. If the drugs are not available for production or sale then supply reduction is working toward the intended goal. (University, 2011) Demand Reduction is meant to diminish the users or potential users from the drugs. This is through education and prevention programs that allows these individuals to learn more about the harm and damage of drugs in the hopes they will not use or they will discontinue using the drugs. The less people interested in purchasing the drugs the less demand a particular will have and the supply will be diminished from that point on. The drug treatment courts are a huge part of the demand reduction since they sentence drug users that have been charged with an offense due to their drug use. (University, 2011) Prevention is by way of the Prevention Action Plan that teaches the youth about illegal drugs and the problems associated with illegal drug use in the hopes of achieving prevention before they even begin. It is important to provide all kinds of information and real people to tell their stories of the hardships they had to bear because of an addition. The Treatment Action Plan, which works toward being able to sustain groundbreaking and efficient advances in the areas of drug treatment. This is to be able to effectively deal with and provide proper aid in their recovery to the addiction of the illicit drugs. (University, 2011) Harm Reduction is used particularly for policies or programs that aim to reduce the harm without necessarily requiring abstinence. if they can be shown to reduce drug-related harm rather than just reduce use and if they are not coercive or punitive in their approach. Some harm reduction strategies designed to achieve safer drug use may, range from simple practices such as needle and syringe exchanges to reduce the rates of needle-sharing among injecting drug users, which can spread HIV, to the more complex such as methadone maintenance treatment, supervised consumption facilities, street testing of drugs, and heroin prescription. (University, 2011) Enforcement actions are vital for preserving a definite amount of power over the flow of drugs in addition to imparting a substantial appearance of the social contempt of drugs. Illegal drug use is so complex and pervasive; it involves law enforcement at almost every turn. The justice-related costs associated with illicit drug use, including expenses for police, courts, and correctional services, have been estimated by the Canadian Centre on Substance Abuse at about $2 billion annually (University, 2011) (Rehm et al., 2006). I agree with the way that the police force and the Canadian government have decided to deal with the drug problem. Educating and providing safe options is better than putting every drug user through court who has not committed a crime that deems an arrest. It is far too costly to deal with every drug user that exists within Canada. It is better to reduce the supply and availability of the unwanted drugs in the community. Educating the public is a far better option so that the community can understand all the factors of drugs and drugs users and the problem associated with this. There will always be drugs as there will be people wanting to use them. The Canadian government understands these problems. They have therefore has taken a more proactive approach to reduce the amount of people interested in abusing drugs. They are effective in providing treatment and new habits that will aid the individuals in not being as debilitated. This is through education programs, health care and needle exchange programs. No one can win the war on drugs since there will always be individuals that want an illegal escape from reality. As long as the government deems it illegal, the allure will persist. It would not be a good idea to allow harsh drugs such as cocaine or crystal methamphetamine to be legal but marijuana should be legalized, if only to be one less problem for the police to deal with. This is because it takes such a toll on the justice system and the police force. Illegal drugs cause suffering and long-term abuse for the individual and it is important that these in dividuals are given a second chance at creating a new life.

The Nation of Israel Essays -- Hebrew Israel Religion Religious Essays

The Nation of Israel The nation of Israel has played a critical role in the formation of Western and Eastern ideologies and has had an unmistakably profound impact upon the theological and cultural evolution of mankind. Former U.S. President John Adams, commenting on the historical importance of the Hebrews, once said the following: "I will insist the Hebrews have [contributed] more to civilize men than any other nation. If I was an atheist and believed in blind eternal fate, I should still believe that fate had ordained the Jews to be the most essential instrument for civilizing the nations †¦ They are the most glorious nation that ever inhabited this Earth. The Romans and their empire were but a bubble in comparison to the Jews. They have given religion to three-quarters of the globe and have influenced the affairs of mankind more and more happily than any other nation, ancient or modern (Aish).† The Hebrews are not only of undeniable historical significance but also a key factor and concern in contemporary politics. In order to begin to understand the nature of Israeli politics it is important to understand the rich history of the Hebrews and also the events surrounding and leading up to the formation of the nation of Israel. We will begin our investigation into the politics of the nation of Israel by reviewing key historical contributions and events pertaining to that nation and its people. The most significant and widespread impact of the Hebrew culture can be seen in its spread of monotheism to essentially polytheistic cultures. This theological ideal served to both lay the foundation and perpetuate the formation and evolution of the world’s three major monotheistic religions: Judaism, Christianity, and Isl... ... Nov. 2003 http://www.mfa.gov.il/mfa/go.asp?MFAH00i60 XIX. â€Å"A Critique of the Israeli Basic Laws† Israeli Basic Law 18 Nov. 2003 http://www.gongfa.com/zuigaoyuanduizgyihui.htm XX. â€Å"Parties represented in the fifteenth Knesset running for reelection in 2003† Israeli Government (Sixth Reference) 18 Nov. 2003 http://www.mfa.gov.il/mfa/go.asp?MFAH0mt10 XXI. â€Å"Results of Elections to the 16th Knesset – Jan 28,2003† Israel Government (Seventh Reference) 18 Nov. 2003 http://www.mfa.gov.il/mfa/go.asp?MFAH0n130 XXII. â€Å"The Judiciary: The Court System† Israel Government (Eighth Reference) 18 Nov. 2003 http://www.mfa.gov.il/mfa/go.asp?MFAH00gz0 XXIII. Gordon, Evelyn. â€Å"Is it Legitimate to Criticize the Supreme Court?† Azure 18 Nov. 2003 http://www.shalem.org.il/azure/3-articles2.html