Essays on Sunlight

Herbicides play a significant role in ensuring healthy growth of plants. In Canada, approximately seventy herbicides are utilized in the forestry sector. They have been used since the nineteen forties. The herbicides assisted in rapid clearance of weeds leading to increased production in the forest sector. However, utilization of these herbicides has adverse effects on wildlife and environment. It is essential to ensure these effects are minimized. This paper gives a summary on the utilization of glyphosate herbicide (Vision). Additionally, it discusses various adverse effects resulting in its utilization. It also provides an examination of the benefits of herbicide ...

Global warming refers to the phenomenon due to which the average global temperature rises by a few degrees over a specified period of time, or as the time passes. The concern that this raises is that if the temperature keeps on rising every few years or so, it is not hard to imagine what would be its effects to the global climate and environment over the next few decades. The rise of a few degrees in a few years is not much of an issue; however, if this rise is consistent, that is where the concern of most of ...

Are Solar Roadways Viable Technologies for the Future?

Solar roadway refers to road surfaces that are capable of generating electricity through photovoltaic solar power cells (Aggrawal, Mehta and Tiwari 161). One of the existing proposals involves the use of panels that encompass LED signage as well as solar panels that vehicles can be driven on. It is a concept that requires the replacement of roads, highways, sidewalks, driveways, and parking lots with the panels. The layers embedded with LED can be utilized for creating crosswalks and traffic warnings (Hartwig 1). Extra electricity can be used for charging electric vehicles or can be routed into the power grid. ...

An ecosystem shapes the kind of species of animals and plants that lives within it in some ways. For instance, a Tropical Rainforest Ecosystem is one perfect example of an ecosystem inhabited by various kinds of animals and plants (Ewers et al., 2015). In particular, the tropical rainforest ecosystem is in the tropical regions of the globe mostly associated with warm and at times hot climate. Animals that are adaptive to this climate and as well as adaptive plants and vegetation characterize the ecosystem (Gagic et al., 2015). The tropical rainforest ecosystem has influenced the environment in some ways. ...

Part 1: Answers to Preliminary Questions

• Photosynthesis is the process by which green plants use sunlight energy to manufacture food using water and carbon dioxide as raw materials.

• An increase in the intensity of sunlight increases the rate of photosynthesis up to a given level.

• Photosynthesis and respiration processes complement each other. It is possible to examine the relationship between photosynthesis and cellular respiration under controlled experimental conditions. This can be conducted by setting up an experiment with two sets of experimental set-ups. In each set-up, there should be two test-tubes: one with a high concentration of carbon dioxide and another with a high concentration of oxygen. One pair of test tubes, consisting of a test-tube with a high concentration of oxygen, ...

Introduction

The flavour and taste of tomatoes are determined by several factors including nutrition, mineral availability, and sunlight exposure. These general factors play a significant role since they affect other small factors, such as the chloroplast, which further affects the taste of tomatoes. The quality of tomatoes grown in the same region can have different flavours. This aspect can be due to the difference in a variety or the nutrition present in the soil. However, the taste of the tomatoes can be attributed to the degree of ripeness as well (Bruno & Wetzel, 2004). There are several practices, such as picking ...

Solar energy harnessing through the use of solar panels installed in small homes presents better alternative to the hydroelectric provided through the national grid. While the use of solar panels may provide several advantages over the use of hydroelectricity, its usage presents several pitfalls to the user. It is imperative to investigate and outline the possible costs and advantages associated with the use of solar panels as a source of harnessing solar energy before installation is started. In most cases, the decisions concerning the installation of solar panels as the primary source of electricity are normally based on the ...

[City and State]

Introduction

Structures such as large buildings can create its own unique internal environment that can significantly impact the comfort and health of its occupants. After many years of investigating and studying building infrastructures, engineers and designers have increased their understanding and knowledge on the environmental conditions that exists within the building in relation to its physical properties. For the same reason, a solid background in building physics is an integral part of a building’s design, particularly in this modern era wherein green buildings are the rising trend. Most modern buildings integrate building physics prior to construction ...

Abstract

Systemic lupus erythematosus (SLE), otherwise known as lupus, is an autoimmune disease caused by varying and often unknown sources. There are different types of lupus, with SLE being the most common. Other types include lupus nephritis, cutaneous lupus erythematosus, drug-induced lupus, and neonatal lupus. SLE can affect different organ systems including the skin, kidneys, liver, blood cells and brain. There is no direct known cause for this disease, but it is thought to be caused by a combination of factors such as certain medications, hormones, genetics and the environment. There are currently few treatments available for this disease and ...

Everywhere you go, you are likely to meet these very tall houses. Some of these mega structures run into hundreds of floors. It appears like a craze, some competition or sport. Investors with huge loads of cash are today investing in real estate. The idea is to come up with a fancy-looking and incredibly tall house. Unfortunately, the United States of America today houses some of the tallest buildings that the world has witnessed in its long history. Even in the face of the effects that these structures pose, it is surprising that the numbers are swelling. The authorities ...

Osteoporosis is a debilitating disease characterised by reduced mineral density of the bones as well as the destruction of the tissues of the bones. This damage makes the bone fragile and prone to fractures. The fractures often occur in the spine, wrist, and the hip bone. The disease mostly affects the elderly individuals in the society. This paper examines the causes, diagnosis, prognosis, and osteoporosis-related psychosocial issues. Additionally, the paper is set to explore the accommodations required for an individual suffering from osteoporosis.

Causes of Osteoporosis

Loss of bone density and structure is natural in the process of ageing. However, bone loss ...

1. How does the basic leaf structure suit its function? A leaf is a plant organ that is very crucial for a plant survival. It has a structure that makes it suitable to perform its functions. A leaf normally has a larger surface area so that they are able to absorb sunlight more easily. Sunlight is required by plants for the food making process. A leaf is normally very thin. This allows the carbon dioxide to travel and diffuse in a short distance. Also, oxygen which is usually a by-product, diffuse out easily. A leaf has a green coloring ...

Children have been implemented in literature for a long time. Artists have used them in many different ways, from fantasies and folk tales, to myths and science fiction. The Others is a supernatural horror film, where a mother and her two children form part of the main characters of the story. It is based in an isolated, dark mansion. The children also form a very important part in the story, as they inspire both sympathy and fear throughout the movie, the first progressively decreasing as the movie develops. They also add a surge of gothic sensibility to the film, ...

A History of Innovation

Tesla was founded in 2003 by engineers who wanted to capitalize on the growing market for electric vehicles (Tesla, 2016). Tesla was named after Nikolai Tesla, and the corporation uses several of his patents in the construction of its vehicles. Our major production was the Tesla Roadster, created in 2008. The Roadster could go from zero to sixty MPH in 3.7 seconds, making it one of the quickest vehicles on the market, let alone one of the fastest electric vehicles. The company would sell 2,400 of the Roadsters in total. In 2012, the company launched the Model S ...

The majority of energy used in the world consists of fossil fuels, such as oil and coal. However, at the current usage rates, the Earth will run out of fossil fuel, and the population will have an energy shortage. Many researchers are now looking into renewable sources of energy to combat the threat of exhaustion of our current energy sources. Renewable energy sources are ones that use the aspects of the Earth that cannot be consumed, and therefore, we would never be depleted. Waterfalls, wind, and solar power are three renewable sources of energy that people are using today. ...

Cellular respiration equation:

C6H12O6+6O2→6CO2+6H2O+38ATP. Glucose+Oxygen→Carbon dioxide+Water+38ATP.

Photosynthesis equation:

6CO2+6H2O+sunlight, nutrients→C6H12O6+6O2. Carbon dioxide+Water→Glucose+Oxygen. Respiration and photosynthesis are opposite processes. It means that products of cellular respiration are reactants of photosynthesis and vice versa: the products of photosynthesis are reactants for cellular respiration. It is known that plants are autotrophs. Thus, they have to realize cellular respiration because they need energy for their existence. Due to cellular respiration, they receive energy, which is used to make organic compounds (glucose) and oxygen during photosynthesis. From the other side, people are heterotrophs. They ...

Abstract

Global warming is a process of increase of the temperature of Earth's atmosphere and global ocean. Scientists have identified: uncontrolled emissions and other irresponsible human behavior has caused the steady climate change that could alter the planet completely. Governments and peoples of the developed countries of the world have recognized the danger of a global catastrophe. The aim of this work is the disclosure of the problems of global warming, the explanation of the causes of global warming, its characteristic features in particular regions and the effects which may be dangerous for humanity in a not far future, a ...

Global warming is the excess greenhouse effect caused by various factors that rise earth’s temperature beyond an optimum level, causing adverse impacts to the biosphere. Earth’s temperature is determined by the amount of solar radiation received from sun, radiation reflected or absorbed by various gases in the atmosphere as well as various surface features such as snow, water bodies, built environment etc. (US Environmental Protection Agency, 2016). Natural as well as anthropogenic factors contribute to global warming and associated climate change.

Natural Vs. Anthropogenic Causes of Climate Change

Global surface temperature increases occur due to natural causes such as sunspots and Milankovitch cycles. Milankovitch ...

Introduction

The concept of sustainable development was first introduced in 1987 by the United Nations as part of the Report of the World Commission on Environment and Development, in which it was stated that sustainable development implies “meeting the needs of the present without compromising the ability of future generations to meet their own needs” (United Nations General Assembly, 1987). The World Conservation Strategy published in 1980 served as prelude to the conception of this notion, as the UN recognized the importance of minimizing the impact of human activity over the earth’s ecosystems and adopting models inclined towards sustainability ...

Ultraviolet light (UV light) is a type of electromagnetic radiation that is located between visible light and X-rays in the electromagnetic spectrum. It is invisible to the human eye, and has a frequency greater than that of visible light but lesser than X-rays. It has a wavelength ranging from about 10 nm to 400 nm (ISO, 2007). UV light is a part of the radiation that comes from the sun. It can also be produced artificially by electric arcs, black lights, tanning lamps and mercury vapor lamps. The name Ultraviolet literally translates to “beyond violet”, as it has a ...

Abstract

Continuous exposure to a wide spectrum of natural light has constructive impacts to not only one’s health but also their moods. The production of hormones such as serotonin and melatonin based on the intensity of light has a large impact on the distribution of an individual’s emotions. This study seeks to validate the role of sunlight in the distribution of a person’s mood and whether a lack thereof has a negative impact on their emotional balance. The paper utilizes similar researches conducted on this issue to establish an argument about the constructive impacts of sunlight on ...

Space/ Scale/ Territory

Millennium Park is a 24.5-acre park that has several venues for performance, art, architecture, sculpture, and landscape architecture. It is located centrally in Chicago’s central business district and the lakefront. The Millennium Park emerged from a dilapidated ground-level parking space and rail yard into perhaps what may be regarded as the world’s biggest “green roof,” spanning two multi-level parking spaces with a total of over 4,000 cars and one commuter rail line. In Millennium Park, space is created in various ways. For example, there is the illusion of space created through structures and activities that allow ...

Aim: The aim of this project is to determine the influence of sunlight and shade on the characteristic of leaf morphology. Background: The gradient in light received by the leaves, compel them to adapt for optimum growth in a particular environment. This adaptation takes place gradually, with changes in certain morphological features. These morphological changes that take place with time and space in which the plant grows is defined as succession and has a role to play in evolution. Certain environmental factors like shade and sunlight can present as a slightly adverse condition that affect plant growth. In order ...

Abrigo do Lagar Velho is a rock-shelter in the Portuguese valley that is famous for the stratigraphic range of the Upper Paleolithic human occupations within that area.

Absolute dating technique (chronometric dating) refers to the process of revealing the age on a certain time scale.

Acclimatization is the response of an organism to a gradual change in environmental conditions by adjusting and sustaining within these changes. Acheulian (Acheulean) is a tool made of stone that had round cutting edges and was used during the Lower Palaeolithic era.

Adolescent growth spurt refers to the sharp growth in height and weight rates t during adolescence.

Aegyptopithecus refers to the extinct primate of the Oligocene Period, resembling a modern-day lemur, whose fossils were found in Egypt. Afar Triangle is the region that is part of the ...

Which is a better choice at the grocery store: paper bag? Plastic bag? Or tissue bag? Explain your answer.The best choice at the grocery store is to bring a used bag. Paper bags, plastic bags, and tissue bags all have individual issues associated with their use. Paper bags come from a renewable source, and are biodegradable. Despite this, they require more energy to make and are less likely to be reused. Plastic bags are not biodegradable but consume less energy to be made than paper or tissue bags. Tissue bags are the highest energy consumptive option, but are more ...

In this paper, I am assuming myself as an administrator at Sunlight Hospital in California. The main complaint from patients is about the quality of care that needs to be improved with immediate actions. Employees, who work in this hospital including the staff technicians etc., are always very busy with their duties. They do not have much time to deal with minor problems of patients. Therefore, it is the duty of administration to keep an eye on each and every issue that a patient faces related to his or her stay at the hospital and in particular those issues ...

Depression is a psychiatric illness that is prominent with regard to incidence throughout the world (Marchand, 2012). This is a painful condition of despair, which is accompanied by dullness of thought and slow movements. A person feels deeply unhappy and completely unable to experience pleasure, has lost the purpose and meaning of life. There are also other symptoms such as disturbed appetite (overeating or malnutrition), problems with sleep - early waking up at 4-5 in the morning or oversleeping. However, the main criterion of depression is suicidal thoughts. Depression usually worsens overall health and wellbeing. Depression is often accompanied ...

Solar Energy

Solar Energy Background What can be more useful for humanity if not an unlimited power source, which we can use without any harm to the environment? Probably nothing, but solar power. Humanity has always tried to conquer the unlimited power of the sun – the history of solar technology dates back to the 7th Century B.C. and continues to this day. In the beginning, we tried to concentrate the sun’s heat by using glass, mirrors or other devices to light fires. From those times, we greatly progressed, but still we did not conquer this magnificent source of power. Why ...

Tim O'Brien's “ The Things They Carried” is a work of fiction but throughout the novel there is a blend of truth and fiction. The novel is a collection of twenty two stories interrelated stories that speak of the author’s experience in the Vietnam war. By including fiction as well as the comments of the characters in his stories,O’Brien presents an ambiguous story about war. He says that war and its experiences cannot be generalized and there is so much more to it than heroism, courage, fear, death and pain. Especially in the story, “How to tell ...

Introduction

The pollution in the highly urbanized areas allows the phenomenon called ‘greenhouse effect’ wherein the heat from the Sun is trapped on the land causing tremendous amounts of heat and leads to numerous issues such as the rise of temperature, drought, the melting of icebergs, and high evaporation of water. Unfortunately, the cities contribute to this effect, the use products containing CFC’s and the pollution of too much carbon dioxide in the atmosphere leads to the destruction of the ozone layers. With the destruction of the atmospheric barrier, the excessive radiation from the sun cannot be prevented. In ...

DISCUSSION BOARD

DISCUSSION BOARD

Part 1:

There are several analogies between the biological cellular structures evolution and the individual corporation development. A prokaryotic cell is a cell with no internal organelles; all the functions of the cell are distributed randomly inside, similar to a small company where all the members of the enterprise execute the functions of production, administration, and management. There are no specialized duties between the members of the organization similar to the lack of specialization in all the volume of the prokaryotic cell. In a eukaryotic cell (Diffen, 2014). There is a presence of internal organelles that execute specialized functions ...

Trans-World Flight Center, John F. Kennedy Airport (1956-1962)

Opened in 1962, the Trans World Flight Center of the John F. Kennedy Airport is one of the finest structures belonging to the Organic Modern Period that emerged in the mid-20th century.1 What makes this style truly remarkable was the fact that it is based on neo-futuristic designs as well as embodying strict adherence to geometrical proportions, the creation of functional space for the passengers, aircraft, employees, and maintaining harmonious interaction of the structure in its environment.2 The structure was designed by Eero Saarinen, a notable architect and one of the prolific figures that proposed designing the concept of ...

Algae are a diverse group of organisms that are mainly autotrophs. Autotrophs are organisms that mainly produce complex organic compounds by using simple inorganic molecules and light or in other instances by chemical reactions. Algae can be broadly classified into two main groups which are unicellular or multicellular. Seaweeds form the largest and most complex marine type of algae (Olanrewaju, Wan Nik, & Kader, 2013). It should, however, be noted that algae can further be classified in many different ways. Below is an illustration of some of these classification representations. Green algae are classified into the Plantae kingdom and are, ...

Use of Fossil Fuels for Power Generation and the Need for Renewable Energy

According to Nelson (2011), more than 85% of the world’s energy consumption, which is estimated at 520 exajoules, is generated through the burning of fossil fuels such as petroleum, natural gas and coal (p.19). Electric power generation from non-renewable sources will, unequivocally, result in their exhaustion and creation of a major energy crisis. For this reason, it appears primordial to shift in a greater scale to alternate power generation, such as solar, wind, hydroelectric, etc. Amongst these, Sorensen (2011) explains that though hydroelectric power does represent one of the major forms of power generation, its growth is stagnant ...

(Student’s Full Name)

According to John Arend, Mike Benkert, Audrey deFilippis and Saretta Tillmaand, when the Commerzbank building opened its doors in 1997, the “53-story” edifice became the one of the “tallest” buildings located in Europe (1). Nevertheless, the edifice’s distinctiveness did not come from its height, but, rather, it came from the way in which it combined “form, inventiveness, and technical expertise” (Arend, Benkert, deFilippis, & Tillmaand 1). The design and construction of the Commerzbank saw the “[b]reaking away from the American model of deep-planned, air-conditioned structures” that have a “central service core” (Arend, Benkert, deFilippis, & ...

I and my friend James wanted to find out the absorption capacity of different color pigments mixed in water, when exposed to the infra-red radiation. Our hypothesis was the dark color pigment, on being subjected to infra-red radiation, would absorb more energy and will show up in the form of difference in temperature obtained before and after the exposure. Our experiment was influenced by some of the experiences in daily life. First observation was the preference of the light color clothes in hot day, as the light color reflects the sunlight and absorbs the little, preventing the body from ...

Crime statistics remains an essential component in the field of criminology that helps in formulating effective criminal justice policy. For over four decades, the Uniform Crime Reporting System (UCR), the National Crime Victimization Survey (NCVS), and its predecessor National Crime Survey (NCS) has been used in the United States to gather crime statistics. These methods have been used at the national level to estimate the crime and changes in the crime rates in the United States. Such data has helped the policymakers to develop sound policies that help to mitigate the problem of crime in the United States' societies ( ...

Introduction

Cellular respiration and photosynthesis are vital reactions in living organisms since without the two; there would be no life on earth. Cellular respiration involves a set of metabolic reactions that take place in cells of living organisms thereby converting nutrients like sugar into adenosine triphosphate (ATP) (Osterhoudt & Barhydt, 2010). On the other hand, photosynthesis involves the conversion of carbon dioxide into organic compounds by the photoautotroph in the presence of sunlight. Most animals attain their energy requirements through cellular respiration while on the other hand; photosynthesis is performed by most plants that can make their food. These two reactions ...

Abstract

The environmental problem has reached the level to become a global issue that needs to be addressed by all countries and steps that are already decided between nations have to be implemented at the earliest to ensure a sustainable environment for generations to come. Almost every country has assembled various organizations, media sectors and societies all over the world from the past three decades. The study investigates the major environmental issues that are currently taking place in the environment and the activities that are associated with this major problem. In particular, the report discusses environmental issues related to the ...

Bierstadt used light and shadow in a masterly fashion, which made his painting an extremely dramatic. Incredible contrasts reveal magnificent natural environment and its immense beauty made Bierstadt’s pictures popular. The viewer can easily determine three spaces of the artwork: The foreground is the nearest area to the viewer on the right part of the picture. This part shows a hunting scene of the Indians pursuing deer with horses and dogs. Still nearer on the right the mountain spring is visible, next to which a carcass of deer and some human items were left. At some distance three ...

The relevance of this work is expressed by the fact that the interest to Japan is increasing today. Many people, who are interested in modern Japan, are also interested in its history and culture. Consequently, the interest to theaters is also increasing, including the theater of Kabuki, which captivates the audience with its colorfulness and accessibility. The aim of this work is to fully consider the birth of Kabuki theater and study its origins, the specificity and role in Japanese culture. On the basis of the work’s purpose I have set the following objectives: - Consider the occurrence ...

A clean energy vehicle, popularly known as green vehicle, is a motor vehicle that makes minimum harmful effects to the surrounding environment in comparison to conventional vehicles, which use either gasoline or diesel as fuel for their internal combustion engines. Clean energy vehicle technology focuses on bringing spectacular improvements in vehicle technologies with the intention of reducing the dependence of running vehicles on nonrenewable energy sources like oil and improving the fuel efficiency. The areas in which the technology concentrates are: bio-fuels, energy conversion, clean combustion, electrification of vehicles, advanced batteries, lightweight materials integration of vehicle grid and analysis ...

Introduction

Modern technological trends are moving towards the application of sustainable energy resources. Sustainable energy is that which is balanced on the lines of consumption and supply (Berndes, 2003). Concerning this, the utilization of such energy sources promotes the maintenance of controllable collateral implications. Sustainable energy leads to insignificant levels of environmental degradation. Additionally, the sustainability of energy resources can be understood according to their longevity. Such sources are deemed to fulfill the needs of the present while guaranteeing their progressive benefits into the future. Sustainable development has become a mainstream topic that is addressed in various forums globally. Hitherto, ...

Solar Power Generation

Sustainable Technology – Solar Power Generation Power Generation from Fossil Fuels and Global Warming Global warming, as defined by Lineman, Do, Kim and Joo (2015), is the long-term trend of increasing average temperature of the lower atmosphere. It is widely known that this phenomenon is related to the concentration of greenhouse gases that trap heat in the atmosphere, such as carbon dioxide, methane, nitrous oxide, among others. Activities related to human development such as industrial processes, agriculture, cattle raising for meat consumption, transportation, deforestation and power generation are the major causes of greenhouse gases emissions. Specifically, power generation based on ...

Introduction

There are environmental chemical processes which require light to react. These processes are called photochemical reactions. Photochemical reaction is commonly initiated due to the absorption of solar energy or light. When molecules absorb energy in the form of light, the atoms are converted in a transient excited state (Larson & Weber, 1994). This transition state or excited has completely different physical and chemical properties with the initial state of the molecule. The excited states also have more tendencies to react since they are considered stronger acids and stronger reductants that the initial state of the molecule. The excited state of ...

            The generation of electric power through the exploitation of fossil fuels, such as coal, oil and natural gas, is one of the main factors influencing climate change due to the greenhouse gases emissions resulting from the process. In consideration, there is an increasing need to shift towards systems of power generation derived from renewable sources, which have a significantly lower environmental impact; among these are solar, wind, geothermal, hydraulic and ocean power generation. This essay will focus on solar power generation. The energy contained in sunlight can be converted into electricity through the use of Concentrated Solar Power systems ( ...

Investigation of Solar cells

Introduction Solar cells, also known as photovoltaic cells, rely on the photoelectric effect to convert the solar radiation into electric energy. Photoelectric effect refers to the tendency of materials to emit electrons when light is shown on them. The electrons dislodged from the surface of an object as a result of light being shown on the surface of such materials are referred to as photoelectrons. Not all materials exhibit the ability to emit electrons when placed along the path of light. Most with the ability to emit electrons are metals. Silicon is a key ingredient of a solar cell. ...

Introduction

There has been a growing need worldwide for alternative energy solutions to that of the traditional fossil fuel and mined coal. The need for sustainable renewable power sources can be attributed to the growing concern over the state of the area in which we live. Global warming is fast becoming the modern time's biggest threat to human life. Solar energy is one of the best answers to the energy problem that the world is currently facing. Solar power harnesses the energy from the ultraviolet rays emitted by the sun and converts it into electric energy. The determinants of the ...

Solar Energy

What can be more useful for humanity if not unlimited power source, which we can use without any harm to the environment? Probably, nothing, but the solar power. Humanity has always tried to conquer the unlimited power of Sun – history of solar technology comes from the 7th Century B.C. to nowadays. In the beginning, we tried to concentrate the sun’s heat by using glass, mirrors or some other devices to light fires. From those times, we went far away, but still we did not conquer this magnificent source of power. Why do we should develop solar power technologies? ...

Page 1-3: Astrid Elio’s Apartment. Evening. Astrid is sitting in the kitchen looking at her computer The first thought that came to Astrid’s mind was, “this can’t be right!” But this was the fifth time that she had run the test through the advanced analytics on her computer, and no matter what configuration she put in, the results were always the same. She ran it over and over in her mind, “Calixte, her fiancé, was a vampire!” Moreover, he was the newer strain of vampire, which were being called vombies. Vombies were different from older vampires ...

A pressing issue of climate change triggers the search for solutions to combat it. The scientific community frightens the Humanity with the formidable challenges resulting from global warming and other aspects of climate change. Geoengineering discipline is developing in the attempt to address the problem and mitigate its impacts with the assistance of the most advanced technologies. However, the matter of geoengineering technologies employment has proven to be rather controversial, and the governments of many countries now are facing a choice whether to fund research on geoengineering or to ban it. In this paper, I will weigh pros and ...

Re: extended definition of solar power and nuclear power

Purpose This memo is an extended definition of solar power and nuclear power as sources of energy. Introduction Solar power is energy from the sun. This energy is harnessed by collecting sunlight and converting it to electricity (Winter et al. 4). The cells found in the solar panels make this conversion possible. The conversion of sunlight to electricity can either be done indirectly by the use of a concentrated solar panel or directly by use of the photovoltaic cell. Nuclear power, on the other hand, utilizes nuclear reactions to produce nuclear energy (Murray 495). This energy is found in ...

Because Lorraine Hansberry’s play A Raisin in the Sun takes its title from Langston Hughes’ poem about the dangers of deferring dreams due to racism, many people assume that the primary theme of the play is the corrosive effects of racism on the souls of African Americans. Indeed, this play is about a family of African American extraction who runs into racism as they try to move from the inner city projects of Chicago to the suburb of Clyborn Park. However, there are other themes at work in the play as well, such as the ins and outs ...

Introduction

Air pollution is defined as the introduction of biological molecules, particulates, and other harmful substances into the air in sufficient quantities such that they cause damage to the health of living organisms including human beings, plants, and animals and may sometimes cause death. These pollutants may also cause harm to property resulting in corrosion of buildings and causing them to crumble or destroy the environment by introducing foul odors and reducing visibility. Two different types of air pollution exist: natural or artificial, depending on the causative factors. Air pollutants are also classified into primary and secondary sources. Primary sources ...

Green buildings are a type of buildings whose design is optimized to reduce resource consumption during building, operation, and demolition. The main purpose of green buildings is to promote environmental conservation by reducing their carbon footprint. The design of green buildings is anchored on the principle of reduce recycle reuse. For example, the design is aimed at reducing water and electrical power consumption. Also, green buildings are equipped with provisions for recycling water and reusing it elsewhere. In addition, green buildings are sometimes constructed by reusing construction materials salvaged from demolished buildings (Colclough par.4). This paper examines the best ...

‘A Raisin in the Sun’ is about an African American family who struggle against racism and poverty to get out of the ghetto they live in and move into a white suburb. However Hansberry’s play is also filled with other themes such as pride, family, dreams and there are also many characters who dare to dream beyond their current life. The play focuses on racism, but on poverty as well. However, the beauty of the play lies in the fact that the central theme is family bondage. The poverty in their lives affects every member of the Younger ...

Infrared Cameras

Introduction An infrared camera is a non-contact device that detects infrared energy and converts it into a visible light display. The infrared energy is first translated into electrical impulses that are then converted into data for camera display. The image or video formed on the screen is of different colors depending on the intensity of the infrared emission. Most cameras have built-in visible light digital cameras that allow merging of infrared and visual images. There are two different types of infrared cameras; cooled cameras and uncooled cameras. The cooled infrared cameras produce superior image qualities than uncooled cameras but ...

‘A Raisin in the Sun’ on the outset is about the Younger family, an African American family who struggle against racism and poverty to get out of the ghetto they live in and move into a white suburb. However Hansberry’s play is also filled with other themes such as pride, family, dreams and full of characters who dare to dream beyond their current life. The beauty of the play lies in the fact that it not only focuses on racism but also on poverty. The poverty in their lives affects every member of the Younger family albeit in ...

Discovery of ultraviolet light

Ultraviolet radiation is very significant in the tanning individual who are interested in making their skin look like leather as well as for vampires killing, yet it cannot be seen or else felt. The question is then, how did people discover existence the existence of ultraviolet light? Although light is comprehensively abundant when it comes from its primary source the sun, and it is tough to get hold of it because it travels at very high speed than anything else globally. Since light is subsequently insubstantial, for many years, individuals managed only to collect a few frequencies without knowing ...

According to Socrates, “The unexamined life is not worth living”, which does reflect philosopher’s vision he adhered to throughout his life. The Matrix and Philosophy essay draws connections between the movie The Matrix and philosopher’s own life story. As Socrates stated, his mission was to “wake up” the people of Athens, which was his hometown. He commenced this mission by applying the Socratic Method, which is the “process of asking questions until the person either contradicts himself or makes a mistake”. According to the Oracle at Delphi, Socrates was the wisest man in the whole world, and ...