Essays on Wind

The main role of roof shingles is to form a layer of protection around a building in order to protect the structure from extreme weather changes, thereby reducing maintenance costs and increasing the value of a property . When it comes to selecting a material to be used in these shingles, there are options to choose between asphalt singles, organic shingles and tile shingles. Amongst all of these, asphalt shingles offer the twin benefit of affordability and durability. However for structures that are constructed in geographical regions where there are sudden and extreme temperature changes, asphalt shingles do not prove ...

ASSIGNMENT 2: ASTRONOMICAL IMAGES

For each Micro Observatory Robotic Telescope Network observation:

position: RA= 13h 24.9m Dec= -7 degrees 28 minutes located in constellation: Libra Distance= 600 million km (33 light minutes) at closest to the Earth Field of view: Normal Exposure time: 15.00 sec. Filter: Grey (ND4)

Hour Angle: -1h 40.4m

Comment on quality of observation: Micro Observatory is run by the Harvard-Smithsonian Center for Astrophysics Question: Why are some of the targets listed as “not up tonight”? Micro Observatory Robotic Telescope Network observation: Target name: Jupiter Type of object: Planet position: RA= 13h 27.3m Dec= -7 degrees 39 minutes located in constellation: Libra Distance= ...

HadCM3 stands for Hadley Center Coupling model version three. This global climate model (GCM) was developed by the Met Office Hadley Center for Climate Science and Services in 2000, and was used as one of the major GCM ever since, starting from the Third Assessment Report by the Intergovernmental Panel on Climate Change in 2001. The model includes two elements – HadAm3 (for atmospheric modeling) and HadOM3 (for oceanic modeling), therefore forming a coupling assessment model. The GCM was a further development of the previous model HadCM2, also developed at Hadley (Bloom, 184).

Model description

The model includes 2 elements for the ...

Effect of climate Change on the Great Barrier Reef (GBR)

Rising sea temperatures: Empirical evidence shows that the rising temperatures caused by climatic changes have a ripple impact on the GBR due to the interdependence between algae found on the coral reef tissue and sea animals that feed on it (GBR Marine Park Authority, 2011). More importantly, rising temperatures stress coral reefs because they are highly responsive to fluctuating temperatures; in particular, if sea temperatures remain higher than usual overtime due to climate change, algae that depend on corals for food may escape the tissue. The effect of algae leaving the tissue is manifested when the corals change color ...

Paraguay is a landlocked country covering an average of 406750 square kilometers. It is located in South America. Its prominent physical feature of the country is the Paraguay River that separates the country into two regions with distinct differences in climate, and land topography. Industrialization and other human activities have adversely affected the country’s environment. The current environmental issues are water pollution caused by industrial discharges into rivers and streams, deforestation and encroachment into wetlands. The rate of deforestation is quite high due to weak government policies on deforestation and weak implementation of forest protection policies. The country ...

Rising sea temperatures

Rising sea temperatures are disturbing the ecosystem of the Great Barrier Reef, and if it continues, it will cause major disturbances in the coastal region. Temperature regulates the distribution and the variety of the marine life species, and it also maintains the growth of the coral reef. Over the years, these have grown and evolved with time. When a certain limit of the temperature is exceeded, it can cause the tiny algae inside to be expelled out which causes the coloration of the corals to change. The corals die because of this as they suffer from a lack of ...

Abstract

Hurricane Katrina is considered the largest national disaster in the United States. It led to the death of around 1,800 people and other tens of thousands were left homeless. It came four years after 9/11 and the government had been proactive in creating response plans for such disasters. Katrina led to a number of national crises that were primarily caused by two reasons. One, the hurricane Katrina itself and two, the collapse of the levees that had been built to protect the city. Aside from this, there was a problem in the management of the crisis. The local, ...

Introduction

Lennox is a company under the Lennox industry that manufactures air conditioner products. The air conditioners have for a long time experienced the problem of excess noise during use. Noise is the main problem that has made the products of Lennox be rejected by most customers (Afuah & Tucci, 2012). The improvement of the efficiency of the product will increase the value and the competition of the product in the market. Many people have had a negative attitude towards the products because of their noisy nature. Therefore, this report intends to improve and increase the efficiency of the air conditioners ...

Over a long time, there have been witnessed various disasters that occur beyond human control. The natural disaster tends to take place any time of the year regardless of whether tourism is at its peak or not (Ritchie et al. 15). Therefore, it happens that at times the natural disasters become one of the most challenging situations people encounter at diverse economic regimes. In most countries, a natural disaster has led to the loss of lives of many people including the tourists. Moreover, it is evident that natural disaster does not choose the place to occur, and hence it ...

Pro-Care Clinic is a general outpatient clinic facility that caters for basic health needs and mostly deals with outpatient issues (The Green Book). However, once in a while, the facility is required to handle serious issues that may require minor surgeries, child deliveries, or serious accidents. In such cases, the clinic admits the patients in its ward that accommodates 5 patients. Most of these cases are managed first before referring the patients to other equipped hospitals. The clinic has been known to handle these cases since there are no close hospitals in the neighborhood. The clinic has an administrator, ...

All the nations of the earth both developed and developing countries has to deal and cope with the demands of the climate change. China is, therefore, not an exception. China has to deal with a wide range of climates from the tropics and deserts. Climate can be viewed in three dimensions, in that climate constraints economy and society, and the climate is a hazard and can bring about other disasters and hazards. In recent research, the Chinese culture has not yet developed as fast as other nations of the world though some argue that China had the start in ...

Weathering and erosion are two basic events that take place on earth as part of the wear and tear of the natural resources like rocks, soils, and plants and trees that cover the earth. Closely observing weathering and erosion will help understand how the surface of the planet has been changing over the past several years and how it will change in the future as well. Weathering is the process through which rocks on the surface of the earth gradually break down into small pieces. On the other hand, erosion is the process through which the broken pieces and ...

John Dowland - Go, Crystal Tears from Book of Songs, Book 1 for solo voice and lute

1) In the beginning, it was strange and even a little bit uncomfortable to listen to it because it is so different from the music that I usually listen to. I never listen to such old music, so it took a few moments for me to open up my heart and mind to the music. I knew that the sound was beautiful, but because it was so unusual compared to what I usually listen to, it did not immediately attract my attention. When this initial shock wore off, I let myself sink into the song even more deeply. I ...

When it comes to weather related hazards, a major problem that my city often faces is that of tornadoes. Now fortunately, this is something that only happens in the spring time. However, when it does occur, major issues can occur. This not only relates to homes being destroyed, but sometimes, because of the tornadoes, there is also flooding too. The reason this happens, is because of the fire hydrants that burst from the impact that the tornadoes end up producing. Moreover, tornadoes can also cause massive gas leaks as well. Now, this all depends on how impactful and large ...

Introduction

Proper presentation of data collected during a study is imperative to the credibility of a research. In fact, lack thereof compromises the interpretation embraced by the people relying on such information due to the possibilities of miscommunication in the presentation process. As such, researchers ought to follow a compelling approach whilst communicating the results of their study regardless of the research design followed. With this in mind, it is worth acknowledging the fact that there are multiple research approaches followed in the delivery of psychological research information. According to the Emergency Medicine Journal, the popular research designs include observational ...

The countries and the world at large are facing many different crises currently. Different experts have come up with ways to predict the occurrence of different crisis in the near future. These predictions are important as they may give out information on how to prevent or overcome the crises, which mostly have adverse effects such as loss of lives or affect other crucial phenomena. I am going to cover predictions about climate change.

Summary

Climate change refers to the increment in global temperatures. There are several factors that lead to climate change such as natural events and human induced activities. ...

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INTRODUCTION

The following discussion is a literature review on five sources each for sustainability monitoring systems and effective indicators.

Sources for Characteristics of Good Monitoring Systems

“Monitoring Systems for Sustainability. What are they measuring?” This is a doctoral thesis from an Australian university that examines the sustainability reporting and monitoring systems by governments, private corporations and global non-governmental organizations. Australian frameworks are compared to those of international models. Sustainability indicators in the Australian context are discussed extensively. Two case studies from the private sector are presented. (Davidson, 2008) Using the case study of the Australian Gas Light Company, shortcomings in current sustainability reporting practices ...

Where are the normal pacemaker and the backup pacemaker of the heart located?

Answer: The normal pacemaker of the heart is known as Sino- atrial (SA node) which is located in the right atrium of the heart, whereas, the backup pacemaker of the heart is known as Atrio- ventricular and it is situated in the centre of the heart along the right atrim (AV node) (Rhodes, 2008).

Why does this patient have a bradycardia?

Answer: The patient has bradycardia as a result of occlusion in the right coronary artery (Serrano Jr et al., 1999). Infarction in the right coronary artery is known to give rise to bradycardia.

What parts of the heart have the fastest and slowest conduction velocities?

Answer: The Purkinje fibres have the fastest conduction velocities whereas the AV ...

The history of food preservation begins with the understanding that the spoilage of food

begins from the moment it is harvested and left in open air. The earliest of methods used by man included freezing meat in the winter or drying certain foods under the sun. One of the ways by which man could move from one place to another while carrying an ample supply of food was by preserving it and preventing meats and other food stuff from spoiling. The need to kill and eat foods all at one time was prevented by the idea of food preservation. It is noted that different civilizations used various methods of preservation, mainly those which ...

The Greek islands have many opportunities for travelers, and it has become one of the most sought-after vacation spots in the world. These islands are historic for their beauty, with many worldwide travelers coming here for centuries for what th”ey believe to be healing properties. Recent visitors may or may not believe in healing waters or sun powers, but they are interested in a chance to be spoiled, get away, and enjoy the island’s vast natural offerings, as well as the luxuries of the sister islands and the ocean. Mykonos, part of the Cyclades island chain, is ...

Macroeconomic and Account Balances

India is seen to react rapidly to volatility in the global economic environment as concurred in the modifications of the macroeconomic policies when the North Atlantic financial crisis occurred (Kapur and Mohan, 2014, p.1). However, India’s policy changes is perceived by Kapur and Mohan (2014, p.1) to be temporarily stimulating to the local economy since the expected growth will gradually slowdown. But the additional effect is that inflationary and BoP pressures remain constant, which can either by improved or worsened by the domestic policy bottlenecks (Kapur and Mohan, 2014, p.1). This was seen during the financial market volatility ...

People often juxtapose their world to the world of nature. More and more often modern people, in contrast to those living in ancient times, express an opinion that they are masters on the earth and, therefore, have a right to exercise dominion over animals, plants, and nature on the whole. However, in most cases, people are just slaves of circumstances and of the environment in which they happen to exist. Disgrace, a Booker-prize winning novel by J.M. Coetzee (1999), is all about that coexistence of the two worlds – the world of nature and the world of people who want ...

Defining the Coastal Environments in Tourism Industry

Tourism is one of rapidly developing industries in the global scales. Additional emphasis in this case should be put on the marine and coastal tourism - as two of the most popular options for spending the time and relaxation (Hewawasam, 2002, p. 2). At the same time, even while, taking into account general awareness among the scholars., pertaining to importance of tourism both in environmental and economic contexts, insignificant attention is paid by them to these two contexts of tourism (Sunlu, 2003, p. 263-270) The core need for additional attention to this sector is caused by insignificant understanding of ...

Discussion Question

Hive was discovered by Jeff Hammerbacher during his tenure at Facebook. Facebook was receiving huge volumes of data daily, and there was a need to create a mechanism to help in data storage, mining, and analysis. It is this tool that allows Facebook to process thousands of Terabytes of Data with ease on a daily basis. Hive employs a language called HQL which works in a similar way as SQL. Irrespective of the limitations of commands that HQL understands, the language is still useful. Hive gives users with little programming knowledge the capacity to process, extract and analyze data ...

Q1 Based on the best quote, “Take whatever idiot they have at the top of whatever agency and give me a better idiot Give me a caring idiot, give me a sensitive idiot, just don’t give me the same idiot” by the president of the Jefferson Parish, Aaron Broussard and the words from James Lee Wit that states “we promised to make an agency that could deliver on the political promises” (Cooper & Block, 2006). This suggests that FEMA was expected to provide the best services that were related to homeland security, for instance dealing with disaster, Hurricane Katrina ...

Burj Khalifah or Khalifah Tower, also called Burj Dubai is currently the world’s tallest skyscraper. Located in the metropolis of Dubai, the Khalifah Tower is a mighty structure which stands 829.8m or 2,723 feet tall (Merrick). Not only is it the world’s tallest skyscraper but it is also regarded as the world’s tallest free-standing structure. The structural length of the tower makes it occupy the most number of stories in a building, and it also has the highest occupied floors in the world. It is a frequently visited tourist destination by people from all over ...

Introduction

Are humans threatening the survival of our planet by disrupting the ecosystem? Marvin Gaye and the public believed this to be the case in the 1960’s and 1970’s when the modern Green Movement first began. Gaye sang “Poison is in the wind that blows from the north and south and east. Radiation underground and in the sky, animals and birds live near by all die. What about this crowded land, how much more abuse from man can we stand?” . Greenhouse effect, ozone layer depletion, ocean poisoning, topsoil depletion, food chain poisoning, acid rain, pollution along with demands ...

Fostering Successful Emergency Planning

Fostering a successful emergency plan ensures that the plan focuses on intensive training and exercises. In doing so, the plan reinforces emergency preparedness for a number of potential emergencies. The exercises that emergency planners can create to test their plans include trial or testing through prototypes and operations, rehearsing the plan and explaining the plan to others and memorizing it (‎Perry, 2016). The best way to access emergencies is through trials. I believe this is true because when accessing emergency systems using trial, one bases the trial on socialist systems. The use of socialist systems in responding to emergencies ...

In the late Bronze Age, war fought by the Greeks and the city of Troy defenders in Anatolia emerged. This war was known as the Trojan War. In this case, Odyssey refers to the adventures of the Odysseus in the Trojan War that is his return from the Trojan War. There are several characters involved in Odyssey. They include Odysseus, Penelope, Aeolus and Telemachus (Cline, 2013). In this paper, I have chosen Odysseus as a character from the Odyssey who was the Ithaca king in Greek who had involved in the Trojan War for ten years. The paper exemplifies ...

Literature Review

Impact Mitigation

Intelligent locomotive bumper designs have been touted as possible life-savers for pedestrians. Paden, Kelly, Hines, Botham and Simms explored the feasibility of a life-saving locomotive bumper (103). There were several motivations behind their paper. Perhaps the most important one was the high number of pedestrians that were killed every year in train impacts. Between the years 2007 and 2012, about 10,950 non-suicide deaths were attributed to train impact on humans. Including suicide deaths on railroads, 28,800 pedestrians were killed during that 6-year period. Also, Paden et al., noted that passenger trains served densely populated areas ( ...

Abstract

Rose hip (Rosa Canina), often cultivated for its fruits, are orange-red oval berries, which seeds (including shells) are used in supporting the treatment of bladder infection, diarrhea, diabetes, and related conditions often in the form of a 3-g powdered seeds capsule. Its seed oil contains ascorbic acid, carotenoids, polyphenols, and GOPO, which reduces inflammation and pain, and lowers inflammatory markers. Extraction methods used include solvent extraction, supercritical fluid extraction, and subcritical fluid extraction. Licensed rose hip supplement products include Hyben Vital and LitoZin/i-flex. Hyben Vital dosage is twice daily for 3 to 4 months to reduce osteoarthritic pain and ...

What are the advantages and disadvantages of Pre-drawn Hazard maps from the agencies?

Risk mapping refers to a program introduced by the federal agencies to equip the communities with the flood tools and information, which enables them to come up with the readily appropriate strategies to reduce hazards and improve their mitigation plans. The pre-drawn maps have various advantages. They help the concerned bodies come up with essential floodplain regulations regarding land use. This move ensures that the people have the ability to target higher-risk locations and come up with the evacuation needs. Such moves provide the reduction of loss of lives. Additionally, employing the appropriate regulations on land use means that ...

Part 1

The current theory regarding the evolution of the earth’s ocean is that water is present during the formation of the earth. Most of the discovered materials which was more than 4 billion years old also contained evidences of the present of water (Genda, 2016). Some scientists suggest that the water on earth emerged in the surface when steam was released in the volcanoes. Additional water emerged in the surface of the earth coming from meteorites and comets during the formation of the earth. The continuous addition of water from volcanoes and meteorites or comets led to the formation ...

Part 1

The equipment used to assess VO2 max and lactate threshold includes the h/p/cosmos Pulsar 5.0 treadmill, the Cosmed Quark PFT Ergo testing equipment, the Cosmed V2 mask, the HR Belt Cosmed-ANT (w/transmitter), and a computer.

Calibration Processes

The preliminary step for the experiment is to perform the calibration of the equipment. The treadmill velocity should be calibrated by marking a point and noting the time it takes to complete a predetermined number of revolutions. This time is used to calculate the velocity by using the length of the belt, which should also be measured. These calibrations should be performed at different ...

Development of long-term recovery plan following a disaster is an essential and complicated process. Communities affected by a disaster need to measure its impact before formulating a plan. The preparation can last for several months since it needs enormous resources. Hurricane Katrina remains the most destructive natural disaster in United States' history. It affected several areas in the country (Pratt, 2016). Communities in New Orleans city were the most affected. The city is located along Mississippi River. Hurricanes and flooding are major sources of disasters. New Orleans has been affected by other hazards such as drinking water pollution and ...

The Federal government has limited options to address economic issues. These are generally described as “Fiscal policy” and “Monetary Policy.” In the most general terms, fiscal policy involves government tax and spend programs. The underlying theory is that tax cuts increase consumers spending ability by leaving consumers with more money and government spending provides a more direct stimulus by injecting money into the economy. Fiscal policy is generally identified under the popular “Keynesian Economics” label. Monetary policy, on the other hand, involves the central bank (the Federal Reserve Bank system, or “the Fed”) “adjusting” the money supply through interest ...

In the mid-nineteenth century classical school of political economy was in crisis, as its theory was based on the interpretation of cost values and could explain some of the pressing problems of the economy. The weakest point of the classical school was that it was poorly focused on the subject-user, for which production takes place. The opinion of the classical school was confined to the manufacturer. An exit of the crisis was found by the marginalists. This direction of economic thought emerged in the last third of the XIX century in the center of this system is subject to ...

Q1. A 200mm diameter pipeline divides into two smaller pipelines, one being 100mm in diameter and the other being 150mm in diameter. If the velocity in the 100mm pipe is 0.3m/s and that in the 150mm is 0.6m/s, calculate the flowrate in litres/s and the velocity in m/s in the 200mm pipe. [ 13 l/s, 0.413m/s] Solution: Flow Rate = (pi/4)(0.1)2(0.3) + (pi/4)(0.15)2(0.6) = 0.01296 cubicmeters/sec = 12.96 l/sec. (ans.). Velocity = (Flow Rate)/(Area) = [0.01296]/[(pi/4)(0.1)2] = 0.4125 m/s. Q2. If the specific volume of water is 0.001251 m3 /kg. calculate:

The mass and weight ...

Introduction

A theoretical research was conducted to demonstrate and to understand several fundamentals of hydraulics. This lab entailed information gathering and analysis of hydraulic fundamentals. It employed the use of both primary sources and secondary sources to collect relevant information on the selected topics on hydraulic fundamentals. The aim of the lab was to research and understand several fundamentals of hydraulics. The fundamentals were identified, defined and described in a non-technical manner. Additionally, the importance of the hydraulic fundamentals was briefly discussed. The scope of the lab was confined to a list of hydraulic fundamentals which included hydraulic head, the ...

Abstract

The Hurricane Katrina is considered the most devastating storm in the United States due to its magnitude of destruction and the casualties involved. Though the weather forecasters had predicted about the storm, the American government had not put any measures to deal with the catastrophe. As a result, the Gulf Coast States that was hit hardest by Katrina lost properties worth billions as well as thousands of lives. The parties involved in the rescue process included the Army Corps, Coast Guards, as well as FEMA. The Katrina hurricane recorded the government inefficiency in two levels. The first one is ...

Book report

The considered book to be analyzed is Blink: The power of thinking without thinking. The first to consider is the word title blink which is the action to shut and open the eye in an instant. The Author develops the idea that it is possible for humans to train the brain with experience and techniques to give a response to an external stimulus in a short time. The subtitle "thinking without thinking", from my point of view is a words play that gives the idea of the reader of the instantly of the process. It is possible to have ...

Abstract

A sandstorm is characterized as one that whips up extraordinary loads of sand into the air, forming a dense cloud above the ground in the process. While most of the sand will rise higher than 50 cm, some sand particles can even ascend to the height of 2 meters. According to Wikipedia, the average diameter of the particles carried by such dust storm winds will vary between 0.15 and 0.30 mm. Wind speeds such during sandstorms have been recorded at up to 16 km per hour and more, while most storms continue to blow for between three hours to ...

Introduction

As the need for energy conservation and preservation of the environment becomes more popular, many countries and firms are now utilizing renewable energy in order to generate power. Renewable energy, also known as green energy, is defined as the energy that comes from natural resources which can be replenished constantly, such as sunlight, tides, wind, biomass, and geothermal heat. Because the sources of this energy can be constantly renewed, it can be said that this type of energy cannot be exhausted completely (Ciolkosz).

Why Use Renewable Energy Sources?

There are many advantages in using renewable energy. First off, renewable energy is environmentally sustainable. Unlike ...

Question 1

Geography is unique since it is the most basic and essential science. The creation of the field of geography is through human curiosity concerning the atmosphere and the environment in the world. It becomes unique because it is both a social and natural science. The core unifying factor between human and physical geography is the environmental determinism concept which argues that the natural environment directly influences human beings’ moral, mental and physical habits. Both depend on each other while on the earth’s surface since a majority of human’s activities are through the exploration of physical activities.

Question 2

The ...

Abstract

The understanding of the performance of an aircraft is one of the most important issues that many stakeholders in the aviation sector aspire to understand comprehensively. A significant number of aircrafts experience challenges in the process of take-offs or when they are landing. However, through research, engineers have discovered that the climb performance of many aircrafts is affected by several factors including incidences of collision with various obstacles. It is also crucial to acknowledge that an aircraft is characterized by performances in different speed conditions. Through the performance at each speed condition, engineers are able to predict that manner ...

The world is realizing the impacts of global warming and energy crisis and moving towards solutions that can help them to overcome these issues. The Pertamina Energy Tower is such a project that is in the construction process in Jakarta, Indonesia and the completion date of the project is in 2020. The renowned American architectural firm Skidmore, Owings, and Merril LLP (SOM) is involved in the project. The total area is 495,000 square meters with a site area of 57,512-meter square. The building will have 99 floors with the height of over 500 meters. The building will ...

Sustainable energy building: It incorporates several natural factors for sustainability. The presented design will allow the building to harvest wind energy through an opening at the top and integrated wind turbines. The wind funnels will be used to produce energy from predominant air currents. The design of the building presents sustainability gains at its core (Kibert 25). Energy generation techniques: The design capitalizes on Indonesia’s extensive familiarity with geothermal energy, leverage the neighboring campus as a reserve for generating and conserving energy, and shaping the building itself to focus ambient wind into the wind turbines integrated into the ...

On a daily basis, I use energy to watch television, listen to music, cook, take a hot shower, and warm the house. All these activities involve the use of energy, thereby making it a fundamental part of our daily lives. The sources of energy that I use include electricity, solar power, and natural gas. Renewable energy encompasses energy that is generated from resources that can be replenished naturally such as rain, sun, wind and geothermal heat (Hansen, 2014). Renewable energy sources provide energy that can be used in the generation of electricity, water and air cooling or heating, home ...

According to the National Research Council, it is posited that any project can never be risk-proof, and efforts should be enforced to mitigate the same. In its 2005 publication titled The Owner's Role in Project Risk Management, it maintains that the amount of uncertainty in any given project is normally relatively high. Further, the adversity involved in some of the pertinent project risks can be so great such that it is literally impossible to design risk mitigation strategies at the planning stage of a project. In the case where a vendor is underperforming, there is the likelihood of occurrence ...

Introduction

Urban sprawl has turned out to be a controversial issue in recent times due to the rate at which green spaces are disappearing in most of the cities, especially in the United States. Nnaemeka-Okeke (2016) describes urban sprawl as the expansion of a community devoid of concern for the environmental impact. In other words, urban sprawl is the uncontrolled expansion of the metropolitan areas. This phenomenon primarily results in the extinction of green spaces and a variety of environmental consequences. Banai and DePriest (2014) maintain that urban sprawl is considered a cause of the climate change, with environmental effects ...

Throughout the history of Europe, Africa and Asia there had been Empires. These included the Roman, Akkadian, Babylonian, Greek, Shang, Persian, Holy Roman, Bulgarian, Byzantine and Russian Empire along with many more. While Africa, Asia and Europe went through many Empires, South America only had three, the Aztec, Inca and Mayan before the arrival of the Europeans. This paper will look at the effect of Europe’s need to increase their empire on the New World. The first European arrivals to the New World were the Spanish, who decided to expand their empire into the Caribbean after Columbus had ...

Introduction

Newton's Second Law of motion asserts that the acceleration of an object exhibits a direct proportional relationship with the subsequent force acting on it. It explores the relationship that exists between force, mass and acceleration as exhibited by an object. This experiment examines Newton's Second Law of motion by enabling a dwindling weight to speed up a glider of recognised quantity along a track. A thread that links the dwindling mass to the glider is passed above a smart pulley (Knight, 2004). It is imperative to note that the smart pulley exhibits insignificant inertia, low friction and its revolution ...

Literature

Edgar Allan Poe and his most predominant themes Edgar Allan Poe was an American poet, writer, and editor. He is also known for literary critics. He is one of the most important literary figures in Romanticism from 1840 to 1849. Poe’s work was of such dynamic nature that it has resulted in “massive impact” (3). He has also associated nature with good. Poe’s well-known fiction works are Gothic, and "Metzengerstein" was his first published Gothic tale. Some of his works were also satiric and comic such as “A Tale of Jerusalem”, “The Duc de L’Omelette” (humorous ...

Introduction

Exports can be seen as a mechanism for economic growth of a country. Increased exportation of products can provide output growth directly as part of aggregate output. An increase of foreign demand of products can result in a country’s growth through employment and additional income for exporters. Another significant contribution of exports is that it can impact economic growth by way of “efficient resource allocation,” including more economies of scale and technological change as a result of “foreign market competition” (Helpman & Krugman, 198; Ben-David & Loewy, 1998 as cited in Awokuse, 2008, p. 593). One of the drivers for ...

Describe air quality conditions in the US before steep regulations were imposed.

The United States has experienced the worst air quality conditions during the 1940s and 1950s as an effect of the progressing industrialization and urbanization. Another main reason is that the United States has no national regulation and policy towards hazardous gas emission and air pollution during these periods of time. During the 1940s and 1950s, the United States have experienced deadly photochemical smog on major cities including Los Angeles and Donora(Williams, 2013). In addition, the ozone levels in the lower layers of the atmosphere exceed its limit and become dangerous to people as well as the environment. During ...

Single Pump Results

Single Pump Calculations

Impeller Diameter (D) 114mm

Venturi inlet diameter (AP) 27.2mm Venturi throat diameter (AT) 18.5mm All calculations done assuming ρ= 1000 kg/m3 1. Graphs for the single pump test Figure 3: Percentage efficiency plotted against the flow rate in litres per second 2. Analysis of single pump graphs The graph in Figure 1 demonstrates an inverse correction that exists between flow rate and the size of the head. According to the curve, the fluid flow exhibits a maximum head (16.20795m) at zero flow (Derakhshan and Ahmad 807). On the other hand, the fluid flow demonstrates a minimum head (4.99490m) at the moment ...

Abstract

The experiment was done to investigate the relative roughness of pipe three though a plot of the friction factor verses the Reynolds number. A comparison of the obtain results was made against a Moody diagram. Also, additional comparison of the experimental results obtained from pipe 1 and 2 were made against theoretical values obtained through Prandtl and Blasius equations. This process entailed plotting the theoretical and the experimental values on the same comparative roughness against Reynolds number chart. Additional results of different types of flow, exhibited by the flowing fluid, was done and represented in a graph of head ...

Introduction

Policy makers and leaders around the globe have realized the need to protect the environment for sustainable operations and the future generations. The energy industry has now turned to renewable sources of power such as water, wind, biogas, etc. Wind power currently serves as the cheapest avenue for large-scale renewable energy. The transformation to more environmentally conscious practices requires the support of the government and other stakeholders. New Zealand strives to set the pace and standards for other nations in terms of utilizing renewable sources of power (Schaefer, Lloyd, and Stephenson, 2011). This essay assesses the development of electricity ...

Climate Change

The world is now facing a problem about climate change, which is a main environmental issue that creates many other problems. These problems are affecting the urban areas. This essay will list three of these problems like the rise of sea level, the rise of temperature, and abnormal weather that are caused by change in climate in urban places. This essay will also evaluate the mitigation efficiencies as well as the adaptation when it comes to resolving this problem. Mitigation means different actions that reduces the effects of greenhouse gases. On the other hand, adaptation means reduction of the ...

Introduction

Global warming is defined as “the rise in the average temperature of the Earth’s climate system and its effects” (Gills, 2015). There are various strands of scientific evidence that reveals that the climate system of the earth is indeed warming. Today, the scientific comprehension of global warming is expanding. A substantial amount of research has been done on the matter. However, there is still a debate going on about global warming. One side emphasizes the cause of global warming as human or anthropogenic activities, and that there is a need to mitigate the effects of global warming – that ...