ZBT1 Task 1: Wave Physics Ian Trimble Student ID: 000352590 Introduction We benefit greatly the benefits of long distance communication‚ eating food from different parts of the countries without fear of spoilage‚ radiation treatment‚ and heating up food in a matter of minutes‚ and a myriad of other wonders all do the wonders of waves‚ be they sound waves as well as light waves. In this timeline‚ we will look at all of the different light waves‚ their history‚ and their benefits. Annotated Timeline
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In this study‚ three different methodologies have been employed for the determination of 226Ra by means of liquid scintillation technique. The first one (referred to as "Rn-LSC-28" hereafter and the tables and figures) is based on the method of Prichard and Gessel (1977) and Cooper et al. (1988) and also used by Escobar et al. (1996)‚ Zouridakis et al. (2002) and Aleissa et al. (2012). In this procedure‚ 8 mL of each standard solution was transferred to a high density polyethylene vial‚ covered with
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and the power is divided‚ which means the big cost incurring when switching suppliers. * Size of suppliers is variable. There are many small suppliers and big wholesalers‚ company is using. All of them are basically concentrated within 1000km radium‚ which
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On December 7th we paused to remember the bombing of Pearl Harbor seventy-five years ago that began World War II. By the end of World War II‚ the nuclear bomb ushered in a whole new form of warfare. Due to the work of Otto Hahn‚ Lisa Meitner and Dr. Fritz Strassman‚ the creation of the atomic bomb would pave the way the world would look at war with the discovery of the process of nuclear fission. Otto Hahn traveled throughout Europe studying with some of the greatest scientists to develop nuclear
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They are collectively known as the alkali metals. These are so called because they form hydroxides on reaction with water which are strongly alkaline in nature. The elements of Group 2 include beryllium‚ magnesium‚ calcium‚ strontium‚ barium and radium. These elements with the exception of beryllium are commonly known as the alkaline earth metals. These are so called because their oxides and hydroxides are alkaline in nature and these metal oxides are found in the earth’s crust*. Among the alkali
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Isotopes‚ sub-atomic particles and relative atomic mass Sub-atomic particles A subatomic particle is a particle smaller than an atom: it may be elementary or composite. In 1905‚ Albert Einstein demonstrated the physical reality of the photons‚ hypothesized by Max Planck in 1900‚ in order to solve the problem of black body radiation in thermodynamics. In 1874‚ G. Johnstone Stoney postulated a minimum unit of electrical charge‚ for which he suggested the name electron in 1891. In 1897‚ J. J. Thomson confirmed
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agriculture. Yet sometimes scientific discoveries may prove a curse upon the human race. As we know‚ everything has two sides. Electricity can shock one to death if used carelessly. Smoke from factories and gases from cars are terrible pollutants. Radium used in nuclear power plants can lead to a nuclear war. The misuse of scientific discoveries must be prevented. Since chemical elements or substances were discovered‚ some have been made use of for purpose of war. Such weapons as atomic bombs or poisonous
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BANDARI COLLEGE NAME: DICKSON RWEHURURU COURSE: DIPLOMA IN SHIPPING AND PORT MANAGEMENT. COURSE UNIT: ENVIROMENTAL POLLUTION AND PROTECTION. ASSIGNMENT: HOME WORK. 1. Why does air pollution from Port is a big issue. 2. Describe the main sources of Air pollution and give four specific examples in each. 3. Define marine pollution and give their effects to environment. 1
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Background In the Flame test lab we took a simple wire‚ looped it‚ and rinsed it in HCL (Hydrochloric Acid ). Then we dipped the wire in the different samples provided. The samples provided were Sodium‚Potassium‚Calcium‚ Barium‚ Strontium‚ Lithium ‚ and Copper II. Finally we put the wire loop into the flame of the bunsen burner. The flame erupted into many different colors for each specific sample. We then used the colors we recorded to find the two unknown samples given to us. But the question
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Personal Portrait of Erik Erikson’s developmental theory and Kohlberg’s model of moral development Theory of Development Erik Erikson is best known for theories of personality development. His theory details the impact of social experiences across a person’s whole life span. He believes that everyone’s personality develops in a series of stages. There are conflicts that a person experiences in each stage that helps them be successful or fail. The conflicts make a person have personal growth
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