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Benefits of LED Lights Vs CFL

While the most walking spaces discourse regarding energy efficiency revolves around highly visible feature like solar panel, other efficiency technologies have the potential to reduce the amount of energy consumption significantly in walking space. With organizations such as Saudi Aramco where employees walk, jog, the ride bike and other different activities, the use of energy conservation can have meaningful environmental and monetary impacts. This report aims to provide Saudi Aramco’s board useful information about new technologies for energy and cost…...

Discussion About Multimeter

Discussion. 1. When we want to measure voltage reading, the multimeter must be parallel with the component that we want to measured. The red on the high voltage side, and black on the lower. When measuring current, amperes, the multimeter must be in series with the component. Remove one side of the component and connect the black multimeter lead to the board where the component was plugged in and the red lead connects to the loose component. The difference between…...

Biography of a Mathematician: Sir Isaac Newton

Sir Isaac Newton has made an impact on scientists to this day. Even though his discoveries derived in the late 1600s, we are still affected today in the present. The ideals and theorems he sought out still hold legitimate centuries after his time. With the information laid out for them, a scientists using his theories can improve their research to achieve fame themselves. “Some would say that he was the greatest product of the Enlightenment, the explosion of intellectual knowledge…...

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The Charge of the Light Brigade

Alfred Lord Tennyson’s poem, “The Charge of the Light Brigade”, is one that triggers so many emotions, both good and bad. When I read this poem, I felt inspired and sad, motivated and angry, all at once. This poem was so powerful that I read it again just because of how captivated I was by it. In this poetic analysis, I will explain Tennyson’s background and the story of the poem, themes that I noticed, stylistic form, critical opinions, and…...

Bromination of trans-cinnamic acid

Abstract The bromination of trans-cinnamic acid was completed to determine dibromide’s stereochemical structure and its mechanism. After the addition of bromine to trans-cinnamic acid, the product was identified by its melting point and infrared spectrum resulting in erythro-2,3-Dibromo-3-phenylpropanoic acid after comparing similar properties. Introduction In this lab, the bromination of trans-cinnamic acid was completed to determine dibromide’s stereochemical structure, and from there determine whether the reaction is carried out by the usual bromonium ion mechanism or a different mechanism. This…...

The Effect of Using Artificial Lighting with Plant Growth

CHAPTER 1 Background of the Study A plant can only have 12 hours of sunlight or less and for some plants this is too much or too short. Light is the main source of plants for food production, and also for the growth of a plant. It is needed by a plant in order to survive. Natural light is the best light needed by plants, they say, but this light may not last long every day. In using artificial light,…...

Calibration of Volumetric Glassware

Summary In this experiment, The purpose of this experiment is to investigate the measurement of the actual volume contents of volumetric glassware. In the beginning of the experiment, the volumetric glassware should be clean and dry before used. The volumetric glassware, measuring cylinder and pipette should be handled with care and all the precautions were be taken during the experiment was held. This was to ensure to avoid any errors such as parallax error especially while reading water meniscus. This…...

Polygon of Forces

Static equilibrium of forces was investigated through the use of different weights attached to cords which were connected to a central ring, while pulleys supported them. This assembly facilitated the force band system to demonstrate that equilibrium will be attaining regardless of disturbances. However, due to errors in the experiment, the sum of the x and y component did equate to zero as predicted. The graphical solution of the experiment yield a polygon that is completed indicating that all the…...

The White Tiger: Significance of the Darkness and the Light

The significance of the Darkness and the Light in the book The White Tiger by Aravind Adiga The contrast between the Darkness and the Light is often mentioned in this book. The darkness is described as the poor and miserable areas of the rural India, while the light is the opposite. In the light there are often flourishing cities crawling with entrepreneurs and hard workers. In The White Tiger one gets to follow Balram Halwai’s journey from the darkness to…...

Osmosis and Diffusion

The basic principles of Osmosis and Diffusion were tested and examined in this lab. We examined the percent increase of mass and molarity of different concentrations of sucrose in the dialysis bag emerged in distilled water and the potato cores emerged in concentrations of sucrose. The data reinforces the principles of Osmosis and Diffusion, and in a biological context, we can simulate how water and particles move in and out of our own cells. Introduction Objective: 1. Investigate the process…...

The Chernobyl Disaster

Introduction Industrial accidents can occur at anytime, anywhere in the world which may result in loss of lives or injuries to workers and can cause significant damage to the surroundings. Thousands of employees lose their limbs, vision and their lives each day due to the accidents that happen in industries. (Aswathappa, 2005) Industrial accidents cannot be predicted. Most of these happen as a result of human negligence. Accidents occur if the workers are not properly trained to use the industrial…...

Emily Dickinson's "A Certain Slant of Light" Analysis Essay

In her poem, There’s a certain Slant of light, Emily Dickinson uses metaphors and imagery to convey the feeling of solemnity and despair at winter’s twilight. The slanted light that she sees, is a metaphor for her battle with depression. Anyone who is familiar with Dickinson’s background will have a better understanding of what she is trying to say in this poem. Dickinson was known as a recluse and spent most of her life isolated from the outside world. The…...

Friction Lab

Discussion and Review Whenever a body slides along another body a resisting force is called into play that is known as friction. This is a very important force and serves many useful purposes. A person could not walk without friction, nor could a car propel itself along a highway without the friction between the tires and the road surface. On the other hand, friction is very wasteful. It reduces the efficiency of machines because work must be done to overcome…...

Heat Transfer

Practice Problems Set – 1 MEC301: Heat Transfer Q.1 The slab shown in the figure is embedded on five sides in insulation materials. The sixth side is exposed to an ambient temperature through a heat transfer coefficient. Heat is generated in the slab at the rate of 1.0 kW/m3. The thermal conductivity of the slab is 0.2 W/m-K. (a) Solve for the temperature distribution in the slab, noting any assumptions you must make. Be careful to clearly identify the boundary…...

Beer’s Law Lab Report

Abstract: The Beer’s law lab was conducted to determine the optimal wavelength of Co(NO3)2·6H2O with the use of spectrometry. The results determined that the optimal wavelength to study the absorbance of this salt was 500nm. It also demonstrated how transmittance of light and absorbance of light are inversely proportional because absorbance is calculated by multiplying transmittance by a negative log. Introduction: When one is studying chemicals, there are many important factors of significance. The color of a chemical is a…...

Compare and contrast the higher education system in the UK

Firstly, British college student's ability to live independently that is stronger than our country students. Students who do not share the housework rarely . They were trained to help parents rub the car or cut the lawn. Many students also work in community, delivering newspapers are normal behavior, not earned money highly, but they have the opportunity to face the community and get few experience of job, independently of the problem. In holidays , such as gas stations, fast food…...

Air Pollution

Air pollution is one of the most serious problems in the world. It refers to the contamination of the atmosphere by harmful chemicals or biological materials. According to the World's Worst Polluted Places by Blacksmith Institute in 2008, two of the worst pollution problems in the world are urban air quality and indoor air pollution. To solve the problem of air pollution, it's necessary to understand the issues and look for ways to counter it. Air Pollution Statistics In the…...

Electricity & Magnetism

Properties of Magnets: Magnet: any material that attracts iron and materials that contain iron Magnets attract iron and materials that contain iron. magnets attract or repel other magnets. In addition, one part of a magnet will always point north when allowed to swing freely. Magnetic Poles: Magnetic Pole: any magnet with 2 ends, each is called a magnetic pole. Magnetic poles that are unlike attract each other and magnetic poles that are alike repel each other. Magnetic Force: the attraction…...

Wye-Delta Transformations

Abstract On this experiment, analysis of resistive network by series-parallel circuits, the students will demonstrate the characteristics of series-parallel circuits by measuring and verifying the calculations of the resistance, voltage and current associated with the different resistive components of a series – parallel circuit. On this experiment, the students will also demonstrate the principle of basic electric circuit Law called Ohm’s Law as well as the use of basic principles involved in series, parallel and series-parallel. This experiment discusses about…...

Gothic conventions in 'The Others'

The film ‘The Others’ made by Alejandro Amenabar in 2011 is a film about a woman who lives with her two photosensitive children in their large, old home which she believes is haunted by ghosts. This film uses a large range of techniques and ideas to emphasise and contribute to its gothic themes. These techniques include dark and light imagery, symbolism and setting. The Others also uses traditional gothic ideas to develop these themes throughout the movie, including suffering, fixation…...

Energy Transfer

For us to do work, we need energy. Energy is measured in joules, (J) or kilojoules (kJ) Energy exists in many different forums such as Kinetic and potential energy – Kinetic energy is the movement of energy and potential is stored energy, energy ready to go. A lawn mower filled with gasoline, a car on top of a hill, and students waiting to go home from school are all examples of potential energy. Gravitational potential energy is the energy crazed…...

Physics Lab Report Cooling Coffee

Introduction: It is Saturday afternoon. You brew yourself a cup of coffee and are practically to put cold milk into the coffee. The doorbell rings and you realize right away that your pal requires your assistance for a few minutes this afternoon. If you wish to have your coffee as warm as possible after you assisted your pal, what would be smart to do? Should you put the milk now, or after you come back? Or does it make no…...

Refrigeration and Air Conditioning

DEFINATION OF REFRIGERATION Refrigeration is defined as “ the branch of science that deal with the process of reducing and maintaining the temperature of confined space or material below the temperature of surrounding” the system maintain at lower temperature is known as refrigerated system and equipment used to obtain this is known as refrigerator. The cooling effect produced by this equipment is the refrigerating effect. PRINCIPLE OF REFRIGERATION According to Clausius’s statement of second law of thermodynamics ,heat does not…...

Bending of Beam Lab Report

1. Objective: The objective of this experiment is to demonstrate the bending of a bean when loaded at the center of its length and examine its deflection when positioned in two different ways, when the flat side of the beam is support and when the thin side is supported. In addition, try to find linear relationship between the load applied and the deflection of the beam and comparing the experimental deflection with the theoretical deflection. If the load is applied…...

Physics in Everyday Life

1) When we walk or run, our motion is part of laws of mechanics and thrmodynamics. 2) We eat food which undergoes chemical reactions producing heat energy which is converted into mechanical energy 3) Use of refrigerator, pressure cookers, washing machines, television, music system, computers, etc. are all designed on the principles of physics. 4) When we speak, we produce sound properties of which like pitch and intensity are studied in physics 5) Electricity that we use in household is…...

Polarized light lab report

ABSTRACT Ordinary light such as that from a light bulb is a form of wave motion that consists of electrical and magnetic fields that vibrate at right angles to the direction of travel of a light beam. Light waves that vibrate in a single plane are called polarized light waves. Such waves can be produced by passing light through polarizing filters. The experiment conducted was composed of crossed polarizers both qualitative and quantitative, polarization by reflection and of skylight were…...

Physics of Xray

The X-Ray imaging system has one function, which is to offer a consistent circulation of electrons that are strong enough to produce and x-ray beam to create an image. There are several sizes and types of imaging systems but no matter what system you use, every type will have 3 main areas. Those sections are the control console, the high voltage generator and the x-ray tube. The x-ray tube is situated in the exam space, the control console lies in…...

Rate of Diffusion

To test the effect of molecular weight on the rate of diffusion, various experiments were performed. One of which is the glass tube test wherein cotton balls of the same size were moistened in two different substances (NH4OH and HCl). These cotton balls were plugged at each side of a glass tube. After some time, formation of a white ring occurred. The white ring, in fact, is a product of the reaction between the molecules of ammonia (NH3) and hydrochloric…...

Electricity Bill Payment

Chapter - 1 On average there is an aggregation of Passenger data in today’s Electricity Bill Payment . Information is soiled, redundant and difficult one. The technology uses if any are aging are frequency in compatible. An ideal state has complete aggregation and alignment. Scope: 1.1 Electricity Bill Payment is comprehensive web-based Bill Payment Software. It will design for better interaction between passenger, agent and Electricity bills Payment. Designing of Back-end Database The database of this act as the back-end…...

Physics of Diffusion Across a Selectively Permeable Membrane

Introduction Diffusion is movement of molecules from one area of concentration to another. This process is vital for the life functions of cells. Cells have selectively permeable membranes that allow only certain solutions to pass through them. Osmosis is a special kind of diffusion that allows water to go through semi-permeable membranes of high water potential to a region of lower water potential. Water potential measures the tendency of water to leave one place and into another. Diffusion and osmosis…...

Load Shedding (self created Problem)

The electricity load shedding in Pakistan would have not been a big problem to cope with but its made much bigger by adopting the defective policies. One of the causes of load shedding is called the circular debt, which means the private electricity generation companies keep generating the power but they do not get the money for the electricity they have provided, in that case they can generate the electricity for limited period and after that when the outstanding amount…...

Potential Of Coconut Water as Source of Electricity

One of the major problems in our country is energy shortage. There are many methods and proposals on how to conserve it such as the use of batteries. One of these is an electrolytic cell. It contains an electrolyte through which an externally generated electric current is passed by a system of electrodes (electrically positive electrode is called the anode and the negative electrode the cathode) in order to produce an electrochemical reaction. Such a reaction involves the transfer of…...

Lights and Sounds Museum

When I first heard of the Lights and Sounds Museum, I thought I was just going to watch an ordinary show about the making of Intramuros. But when I entered a big room, standing, and with lights all turned off, I felt I was up for something more exciting that day. The Lights and Sounds Museum wasn't just a museum, it was an experience center! A diorama of one of the battles fought between the Filipinos and the Spaniards. The…...

Conflict in story “The Kind of Light that Shines on Texas”

In the story “The Kind of Light that Shines on Texas” by Reginald McKnight we encounter several conflicts that our main character, Clint, an African American child who attends a public school back in 1960, Waco, Texas. He faces through out the story several conflicts with society and also the conflicts he faces personally like living in prejudice. He also has problems with his mother due to his inner problems and lack of communication in the house. The point of…...

Potato Powered Light BUlb

1) Get a potato and cut it in half. Then make a small slit in each half simply huge enough to put a cent into. 2) Cut 2 pieces of copper wire and wrap one around among the cents a couple of times, and wrap the other one around the other cent a couple of times too. 3) Take a 3rd piece of copper wire, and wrap it around among the zinc-plated nails or screws, and after that put the…...

Role of Chemistry in Our Society

INTRODUCTION Common people may not have the actual knowledge of chemistry and it's contribution. But they aware of the comforts which science has provided to the society. The modern technology, advances in medicines, fastest means of transport, durable and beautiful clothes, good fertilisers etc. are a few common things will which every one is familiar. It should not be taken as any surprise if one finds that chemistry plays leading role in serving all aspects of life. As a matter…...

Chromatography and its Types Explanation

ABSTRACT Chromatography is the separation of mixtures into their constituents. It relies on the differential solubilities or absorptivities of the components to be separated with respect to two phases, one of which is stationary and the other, mobile. The group aims to separate the coloured components of siling labuyo using column chromatography then determine the purity of the components using thin layer chromatography and lastly, measure the RF values of the coloured components in thin layer chromatography. The students plugged…...

Freezing point depression lab

Using Freezing-Point Depression to Find Molecular Weight Abstract: In this lab, the purpose was to use the freezing point depression method to determine the molecular weight of aspirin. This was done by determining the freezing of t-butanol and that of a t-butanol and aspirin solution; then finding the molality of the solution, and moles of aspirin. In the results of the experiment, the molar mass was found to be 192.2 g/mol, which differed from the established value of 180.2 g/mol…...

"great gatsby" green light

GREEN LIGHT Symbolism, the appropriation of an object or word to represent an abstract idea of quality, is used in literature in order to communicate a deeper meaning and facilitate weaving the thematic intricacies of the plot with one another. In the highly acclaimed novel, The Great Gatsby, by F. Scott Fitzgerald, symbols are mentioned frequently to provide insight, such as the omniscient eyes of Dr. TJ Eckleberg, the mysterious Valley of Ashes, and the glowing green light Gatsby finds…...

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