colour physics Essay - 701 Words

Colour Physics 712 words 1.nbsp;nbsp;nbsp;nbsp;nbsp;Colour physics, dispersion of sunlight into colours of the spectrum. (Sir Isaac Newton 1676) Discuss and illustrate Newton’s experiments and beyond, from particle to wave theory. 2.nbsp;nbsp;nbsp;nbsp;nbsp;Research, identify and illustrate how the eye sees colour, reference to light emitted, transmitted and reflected. 1. Sir Isaac Newton, held the theory that light was made up of tiny particles. Around the same period, Christiaan Huygens, believed that light was made up of waves vibrating up and down perpendicular to the direction that the light travels. Huygens theory was the successful theory of light wave motion in three dimensions. Huygen suggested that light waves peak†¦show more content†¦Eventually the two wave fronts will overlap with each other, if a screen was placed at the point of the overlapping waves, you would see the production of light and dark areas. One bright afternoon, Newton darkened his room and made a hole in his window shutter, allowing just one beam of sunlight to enter the room. He then took a glass prism and placed it in the sunbeam. The result was a spectacular multi-coloured band of light just like a rainbow. The multi-coloured band of light we now know as the ‘colour spectrum’. Newton believed that all the colours he saw were in the sunlight shining into his room. He thought he then should be able to combine the colours of the spectrum and make the light return to it’s original state (white light). To test this, he placed another prism upside-down in front of the first prism. He was right. The band of colours combined again into white sunlight. Newton was the first to prove that white light is made up of all the colours that we can see. 2. The human eye is the final link in the chain of colour vision. The human eye has a basic two element lens. The cornea is the front or outer element and the lens is the back or inner element. The amount of light entering the eye is controlled by the iris which lies in between the two. The lightShow MoreRelatedThe, Peace, Night, Day, Love, Hate1946 Words   |  8 Pagesdifferences between these pairs, it fails to entertain an idea even more compelling; that these polar opposites may not in fact be that different from one another, and the bold notion that these dichotomies might not be as real as we presume. Art and physics have been traditionally painted as polar opposites; neither resembling the other even remotely. One is rational, objective, and logical, while the other is interpretive, subjective, and, at times, seemingly illogical. While these superficial characteristicsRead MoreJacques Maritain s Philosophy Of Nature Essay1837 Words   |  8 Pagesthree degrees of abstractiv e visualization. At the first degree we have â€Å"being as subject to change† (Maritain 13). The mind abstracts from singular sensible matter, matter that is changeable, and leaving behind certain aspects like its location, colour, and size to know what it is. For example, looking upon a tree, the mind leaves behind its whereabouts and wants to get at what it is – namely, treeness. At the second level of abstraction, the mind knows being as quantity or mathematical knowledgeRead MorePhysics Of String Theory Of Physics1543 Words   |  7 Pagesnumber of excitation modes - that are the elementary particles observed. the strings have tension of 1/(2 p a’) strings are approximately the planck length (smallest possible size of black hole) 10^(-33) cm A quantum Theory of Gravity is needed In physics there are two main central theories. The first is Einstein’s theories of relativity. The second is quantum mechanics. Einstein’s theories of relativity describe gravity but does not include quantum effects. Quantum mechanics describes the universeRead MoreNuclear Physics Of The Society Development1374 Words   |  6 PagesNuclear physics in the society development Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions. The most commonly known application of nuclear physics is nuclear power generation, but the research has led to applications in many fields, including nuclear medicine and magnetic resonance imaging, nuclear weapons, ion implantation in materials engineering, and radiocarbon dating in geology and archaeology. Nuclear physics has a lot of importanceRead MoreGauge Bosons : Fundamental Interactions And Their Evolution2354 Words   |  10 PagesGauge Bosons: Fundamental Interactions And Their Evolution Ray Sahab, Harpreet Kaur, Manish Rawat, Kanishka Kumar Singh Department of Physics, Indian Institute of Technology, Roorkee – 247667 Abstract In this paper, we study the four fundamental interactions, namely electromagnetic, weak, strong, and gravity separately along with its corresponding gauge boson; the theories of the four fundamental interactions and their evolution was studied carefully. We constrain ourselves to study the onlyRead MoreTaking a Look at Quantum Dots1836 Words   |  7 PagesTo begin with in layman’s language or maybe for a person who has limited or little knowledge about physics, quantum dots are materials that are small but are sufficient to exhibit quantum mechanical properties. Quantum dots were first discovered in 1980. They exhibit electronic properties which are between semiconductors and discrete molecules. That is the very reason for the unusually high surface to volume ratio. The most visible use of quantum dots is in fluorescence where the nanocrystal is capableRead MoreColour Ontology is Philosophy that Interacts with Nature633 Words   |  3 PagesWhile the word colour in the 7th Edition of Oxford Advanced Learner’s Dictionary is defined as: â€Å"The appearance that things have that results from the way in which they reflect light.† Colour can be identified by two different methods which are objectively and subjectively. The terms objectively in colour ontology is a method that using the facts by referring to the laws of physics, chemistry and physiology. Subjectively is the term that referred to the psychological concept. The colour ontology orRead MoreDefine Creatio Ex Nihilo1625 Words   |  7 Pagesa while. For example: Blue is a colour, as are yellow and red. All three of these colours make up every colour tone we see. Theoretically, there was an absence of colour, what would be in its place, white or black? It is very difficult to imagine this, as all our life we have been able to distinguish what we have seen because of their colour(s). Even when we try to imagine a world without colours, it becomes impossible not to end up labelling the absence of colour either â€Å"blackness† or â€Å"whitenessRead MoreEssay On Physics Of Complex Systems722 Words   |  3 Pagesand fascinating research areas in physics nowadays is the physics of complex systems, or the theory of complexity. There is not a single and straightforward meaning associated with this buzzword due to its vagueness and polysemy, and very often it depends on the context and the authors. Nevertheless, one of the interesting points are the tools and methods that the theory provides that can be eventually applied to many different disciplines, ranging from physics, chemistry, biology, applied sciencesRead MoreEssay on The Problem of Knowledge Due to Language1085 Words   |  5 Pages means ‘substancesÂ’. This word, however, according to Thai dictionary, it generally means ‘a large elephantÂ’. ‘The limit of my language stands for the limits of my worldÂ’ Ludwig Wittgenstein Natural Science such as Physics, Chemistry, Geology, Biology and Botany, is the study of the physical world. What makes Natural Science different from other areas of knowledge is that we gain knowledge by using ‘scientific methodÂ’ which made up of observation, reason

Mr. Doe Is A Manager - 1063 Words

FACTS: Mr. Doe is a manager in my organization. He is outgoing and he likes to socialize with his subordinates outside of work. He usually goes to the bar every weekend with the team of people he supervises. About half of the employees do not participate in going to the bar with the manager and the other employees. Often Mr. Doe is not afraid to expose or talk about his personal life at work. He told his employees that he is divorced and he has three children who live in another state with his ex-wife, but he visits them often. One day, while at the bar, employees said he met with a girl by the name of Jane with whom he started a relationship with. Soon after that he hired the Jane to work in the organization and Jane was to directly†¦show more content†¦Now, the manager is faced with the most serious challenges of ethical decision as to whether he should fire the lady he is having a relationship with for the many troubles she is causing in the workplace or whether he should just brush off the matter to project Jane’s job. ISSUE: Should the manager fire Jane with whom he is having a relationship with in order to create a pleasant work environment for other employees? CONCLUSION: Yes the manager should fire Jane with whom he is having a relationship with in order to create a pleasant work environment for other employees. ANALYSIS: Deontological theory calls for the â€Å"duty to do the right thing, regardless of the outcome†. That means an ethical decision would be only a choice that everyone would see as acceptable. The manager has the duty to act in the best interest of the organization. Had he decided not fired Jane, it will create a hostile work environment that will have some repercussions on the employees and the company. He should not let one person to poison the future of many others. The situation makes it easy for employees to accuse the manager of preserving his own interest and playing favoritism. He should not only access the consequences derived from it, but he should be ethical in his decision by acknowledging that it is wrong to keep Jane employed. Employees have the right to work in a good work environment. For example, if it was another employee other than Jane, the manager would not be

Health Hygiene Free Essays

Change in health hygiene There has been towering change in the area of health and hygiene in rural Bangladesh. Almost all the villages have a health complex and a pharmacy nearby. People are coming out of the ignorance and consulting the doctors when necessary unlike earlier times. We will write a custom essay sample on Health Hygiene or any similar topic only for you Order Now Health consciousness has modulated the rate of mortality especially in case of women and children. People at village are now more aware of the healthy ways of living their lives. Health campaigns by government and NGOs assisted a lot in framing up the health awareness. People at village are more concerned about taking care of the pregnant mothers and their health. Most of the families now know about the vaccination of the infants and almost all of them give effort to ensure the good health of the infants. Taking â€Å"Polio â€Å"vaccine has already been a common trend there in every year. All these resulted in a noticeable decline in mortality rate of infants and pregnant mother. Not only that, importance of having pure drinking water has also been realized by rural people. The campaign against arsenic in last decade has been totally worthwhile. Proper sanitation is also encouraged now. A massive change has taken place in terms of outlook. Family planning is no longer discouraged in village since villagers are moving away from orthodox religious practices that might harm. In terms of health and hygiene almost all of the changes have been in public interest till now but there are rooms for further development. Villagers do still lack good doctors and nurses. Points for presentation * Establishment of hospitals and pharmacies in rural areas * Public health awareness * More caring attitude towards pregnant mothers infants * Awareness about family planning * Need for more skilled doctors nurses How to cite Health Hygiene, Essay examples

Benefits of Genetic Engineering-Free-Samples-Myassignmenthelp.Com

Question: Discuss about the Ethical issues associated with Genetic engineering on crops and humans. Answer: Introduction: The genetic engineering is based on the gene technology for modification of genetic components included in the crops and humans. The recombination of the gene and DNA helps in developing genetically modified components. It has been analysed that there are some environmental based risks are associated with the crops and their side effects on the humans. The health issues are getting tremendously high with the use of genetically modified food items (Zhang, 2016). The genetic engineering is the biological technology which can affect the genetic system of the living beings. The manipulation and modification can be done in the breeding process of the crops for improving the quality of the crop produced. The development of genetic modification food is due to the over population and its expansion globally. The controlling of human health is the major concern associated with the production of the food item with the use of genetic modified crops. The land for carrying out agricultural activit ies is not available due to the increasing growth rate of urbanization and the expansion of population (Perkins, 2004). The other major factor is the availability of water for irrigation which raises the concern of socio economic factors. The resistance from the potential disease can be developed with the use of genetic engineering concept. Benefits of Genetic engineering on crops and humans: It has been analysed that the growth rate of the crops have been accelerated with the use of genetic modification techniques. The increase in agriculture production helps in improving the economy of the nation. The value of the yield or production is increased due to the improving resistance capacity against of pest and weeds. The farmers use this technology for increasing the sale of the production by making it more attractive and fresh. The genetic modification helps in improving the nutritional value of the crops produced. It helps in overcoming the problem of malnutrition which the people faced due to unavailability of nutrition. It helps in improving the economy and the growth rate of the nation. The processing of the food can be facilitated by using the technology of genetic engineering. Ethical Issues: The carbohydrate value in the composition is changed in the transgenic product for enhancing the quality of the nutrition present in the crop production. The major negative impact can be seen on the environmental factors because the texture of the soil is changed according to the requirement of the genetic modified crops. The antisense genes are introduced for altering the genetic composition which results into the slower down the process of ripening (Qaim, 2013). The appearance of the food item is enhanced with the introduction of the glycosyltransferases gene in the crop production. The negative impact of genetic modification food production can be seen in the health of the humans and associated environment. The unethical principles are adopted for enhancing the appearance of the common food item for increasing the sale. The adequacy is not achieved in the generation of genetic modification food items (Kruft, 2001). The controlling of human health is the major concern associated wi th the production of the food item with the use of genetic modified crops. It has been identified that there are three risks associated with the genetic production of vegetables and fruits which are classified as allergy, toxicity, and genetic hazards. These effects are mainly due to the occurrence of genetic modified crops. The manipulation of the natural genes can modified naturally presents components in the crop which results into allergy and other health issues (Friess, 2011). The metabolic rate of the human can be affected due to the changes in the natural genes of the crop with the use of genetic engineering. The toxicity is introduced due to the growth of potential risks associated with the metabolic activities. The aim of the genetic engineering is to develop the product which can resist with the inclusion of pests and weeds. The farmers use this technology for increasing the sale of the production by making it more attractive and fresh (Key, 2008). This creates the unethical scenarios which can results into negative effects on the human health of the genetic engineering. The food chain is also get disturbed due to the evolution of pest resistance techniques which affects the growth of the organism such as bacteria, yeast, and fungi. The need of antibiotic arises due to the growth of genetic modification which is done in enhancing the crop production. The antibiotic acts against the growth of th organism such as bacteria and viruses in the body of the humans which can be the cause of health issues arises in the human body due to the consumption of genetically produced foods and crops. Recommendation It is recommended that the control measures should be taken to improve the appearance of the crop with the use of genetic engineering. The technology should be used for ethical purposes only such as restricting the growth of the pest and weeds which can affect the productivity of the agricultural field (Li, 2002). The genetic modification helps in improving the nutritional value of the crops produced. The global warming can be effected with the regular use of genetically modified crops. From the analysis we have seen that there are many advantages and benefits also with the use of genetically modified crops. It is the responsibility of the humans to use the technology in the ethical manner without harming the environment and health of the animals and plants. Conclusion: It has been concluded that the unethical principles are adopted for enhancing the appearance of the common food item for increasing the sale. The countermeasures should be taken to control the unethical activities associated with the deployment of genetic engineering in the crop production. The steps should be taken to resolve the potential risks associated with the growth of the genetically modified food. The genetic modification helps in improving the nutritional value of the crops produced which in turn enhances the economy of the nation. References: Friess, D. (2011).Environmental and health impact of GM crops. Retrieved from https://www.greenpeace.org/australia/PageFiles/434214/GM_Fact%20Sheet_Health_%20and_Env_Impacts.pdf Key, S. (2008).Genetically modified plans and human health. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2408621/ Kruft, D. (2001).Impact of genetically modified crops and seeds on farmer. Retrieved from https://pennstatelaw.psu.edu/_file/aglaw/Impacts_of_Genetically_Modified.pdf Li, S. (2002).Genetically modified plants for food use ad human health. Retrieved from https://royalsociety.org/~/media/Royal_Society_Content/policy/publications/2002/9960.pdf Perkins, S. (2004).Human health effects of genetically engineered crops. Retrieved from https://www.nap.edu/read/23395/chapter/8 Qaim, M. (2013).Genetically modified crops and food security. Retrieved from https://www2.stat-athens.aueb.gr/~jpan/Qaim-PlosOne-2013.pdf Zhang, C. (2016).Genetically modified foods: A critical review of their promise and problems. Retrieved from https://www.sciencedirect.com/science/article/pii/S2213453016300295