The Physics Of Scuba Diving Swimming with the Fis Essay Example For Students

The Physics Of Scuba Diving: Swimming with the Fis Essay h Have you ever wondered what it would be like to swim with the fish and explore the underwater jungle that covers two-thirds of the earths surface? I have always been interested in water activities; swimming, diving and skiing, and I felt that scuba was for me. My first dive took place while on a family vacation. I came across a dive shop offering introductory dives, which immediately caught my interest. After much convincing (my parents), with my solemn assurance that I would be careful, I was allowed to participate in a dive. I was ready, or so I thought. We will write a custom essay on The Physics Of Scuba Diving: Swimming with the Fis specifically for you for only $16.38 $13.9/page Order now The slim basics such as breathing were explained and I was literally tossed in. Sounds easy enough, right!, well WRONG!!. From the moment I hit the water, my experience was much less than fun. I quickly sank to the bottom into a new world, with unfamiliar dangers. I really wasnt ready for this experience. I was disorientated, causing me to panic, which shortened the length of my dive, not to mention my air supply. Lets just say I would not do that again. To start exploring the underwater world, one must first master a few skills. Certification is the first step of learning to dive. From qualified professionals one must learn how to use the equipment, safety precautions, and the best places to dive. This paper is designed to help give a general understanding of the sport and the importance that physics plays in it. Self- contained Underwater Breathing Apparatus, or SCUBA for short, is a hell of a lot of fun. However, there is considerably more to Diving than just putting on a wetsuit and strapping some compressed air onto ones back. As I quickly learned, diving safely requires quite a bit more in terms of time, effort, and preparation. When one goes underwater, a diver is introduced to a new and unfamiliar world, where many dangers exist, but can be avoided with proper lessons and understanding. With this knowledge the water is ours to discover. The Evolution of Scuba Diving Divers have penetrated the oceans through the centuries for the purpose of acquiring food, searching for treasure, carrying out military operations, performing scientific research and exploration, and enjoying the aquatic environment. Bachrach (1982) identified the following five principal periods in the history of diving which are currently in use. Free (or breath-hold) diving, bell diving, surface support or helmet (hard hat) diving, scuba diving, and, saturation diving or atmospheric diving (Ketels, 4) SCUBA DIVING The development of self-contained underwater breathing apparatus provided the free moving diver with a portable air supply which, although finite in comparison with the unlimited air supply available to the helmet diver, allowed for mobility. Scuba diving is the most frequently used mode in recreational diving and, in various forms, is also widely used to perform underwater work for military, scientific, and commercial purposes. There were many steps in the development of a successful self-contained underwater system. In 1808, Freiderich yon Drieberg invented a bellows-in-a-box device that was worn on the divers back and delivered compressed air from the surface. This device, named Triton, did not actually work but served to suggest that compressed air could be used in diving, an idea initially conceived of by Halley in 1716. (Ketels, 9) In 1865, two French inventors, Rouquayrol and Denayrouse, developed a suit that they described as self-contained. In fact, their suit was not self contained but consisted of a helmet-using surface-supported system that had an air reservoir that was carried on the divers back and was sufficient to provide one breathing cycle on demand. The demand valve regulator was used with surface supply largely because tanks of adequate strength were not yet available to handle air at high pressure. This systems demand valve, which was automatically controlled, represented a major breakthrough because it permitted the diver to have a breath of air when needed. The Rouquayrol and Denayrouse apparatus was described with remarkable accuracy in Jules Vernes classic, Twenty Thousand Leagues Under The Sea, which was written in 1869, only 4 years after the inventors had made their device public (Ketels, 10). .ua96b85575b54bbe30512b24649449874 , .ua96b85575b54bbe30512b24649449874 .postImageUrl , .ua96b85575b54bbe30512b24649449874 .centered-text-area { min-height: 80px; position: relative; } .ua96b85575b54bbe30512b24649449874 , .ua96b85575b54bbe30512b24649449874:hover , .ua96b85575b54bbe30512b24649449874:visited , .ua96b85575b54bbe30512b24649449874:active { border:0!important; } .ua96b85575b54bbe30512b24649449874 .clearfix:after { content: ""; display: table; clear: both; } .ua96b85575b54bbe30512b24649449874 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .ua96b85575b54bbe30512b24649449874:active , .ua96b85575b54bbe30512b24649449874:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .ua96b85575b54bbe30512b24649449874 .centered-text-area { width: 100%; position: relative ; } .ua96b85575b54bbe30512b24649449874 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .ua96b85575b54bbe30512b24649449874 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .ua96b85575b54bbe30512b24649449874 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .ua96b85575b54bbe30512b24649449874:hover .ctaButton { background-color: #34495E!important; } .ua96b85575b54bbe30512b24649449874 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .ua96b85575b54bbe30512b24649449874 .ua96b85575b54bbe30512b24649449874-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .ua96b85575b54bbe30512b24649449874:after { content: ""; display: block; clear: both; } READ: AIDS and HIV misc 12 00 EssaySemi-Self-Contained Diving Suit The demand valve played a critical part in the later development of one form of scuba apparatus. In the 1920s, a French naval officer, Captain Yves Le Prieur, began work on a self-contained air diving apparatus that resulted in 1926 in the award of a patent, shared with his countryman Fernez. This device was a steel cylinder containing compressed air that . The Physics Of Scuba Diving Swimming with the Fis Essay Example For Students The Physics Of Scuba Diving: Swimming with the Fis Essay h The Physics Of Scuba Diving: Swimming with the Fis Essayh Have you ever wondered what it would be like to swim with the fish and explore the underwater jungle that covers two-thirds of the earths surface? I have always been interested in water activities; swimming, diving and skiing, and I felt that scuba was for me. My first dive took place while on a family vacation. I came across a dive shop offering introductory dives, which immediately caught my interest. After much convincing (my parents), with my solemn assurance that I would be careful, I was allowed to participate in a dive. I was ready, or so I thought. We will write a custom essay on The Physics Of Scuba Diving: Swimming with the Fis specifically for you for only $16.38 $13.9/page Order now The slim basics such as breathing were explained and I was literally tossed in. Sounds easy enough, right!, well WRONG!!. From the moment I hit the water, my experience was much less than fun. I quickly sank to the bottom into a new world, with unfamiliar dangers. I really wasnt ready for this experience. I was disorientated, causing me to panic, which shortened the length of my dive, not to mention my air supply. Lets just say I would not do that again. To start exploring the underwater world, one must first master a few skills. Certification is the first step of learning to dive. From qualified professionals one must learn how to use the equipment, safety precautions, and the best places to dive. This paper is designed to help give a general understanding of the sport and the importance that physics plays in it. Self- contained Underwater Breathing Apparatus, or SCUBA for short, is a hell of a lot of fun. However, there is considerably more to Diving than just putting on a wetsuit and strapping some compressed air onto ones back. As I quickly learned, diving safely requires quite a bit more in terms of time, effort, and preparation. When one goes underwater, a diver is introduced to a new and unfamiliar world, where many dangers exist, but can be avoided with proper lessons and understanding. With this knowledge the water is ours to discover. The Evolution of Scuba Diving Divers have penetrated the oceans through the centuries for the purpose of acquiring food, searching for treasure, carrying out military operations, performing scientific research and exploration, and enjoying the aquatic environment. Bachrach (1982) identified the following five principal periods in the history of diving which are currently in use. Free (or breath-hold) diving, bell diving, surface support or helmet (hard hat) diving, scuba diving, and, saturation diving or atmospheric diving (Ketels, 4) SCUBA DIVING The development of self-contained underwater breathing apparatus provided the free moving diver with a portable air supply which, although finite in comparison with the unlimited air supply available to the helmet diver, allowed for mobility. Scuba diving is the most frequently used mode in recreational diving and, in various forms, is also widely used to perform underwater work for military, scientific, and commercial purposes. There were many steps in the development of a successful self-contained underwater system. In 1808, Freiderich yon Drieberg invented a bellows-in-a-box device that was worn on the divers back and delivered compressed air from the surface. This device, named Triton, did not actually work but served to suggest that compressed air could be used in diving, an idea initially conceived of by Halley in 1716. (Ketels, 9) In 1865, two French inventors, Rouquayrol and Denayrouse, developed a suit that they described as self-contained. In fact, their suit was not self contained but consisted of a helmet-using surface-supported system that had an air reservoir that was carried on the divers back and was sufficient to provide one breathing cycle on demand. The demand valve regulator was used with surface supply largely because tanks of adequate strength were not yet available to handle air at high pressure. This systems demand valve, which was automatically controlled, represented a major breakthrough because it permitted the diver to have a breath of air when needed. The Rouquayrol and Denayrouse apparatus was described with remarkable accuracy in Jules Vernes classic, Twenty Thousand Leagues Under The Sea, which was written in 1869, only 4 years after the inventors had made their device public (Ketels, 10). .u802412f75d4bf43d19432de1406c7c2a , .u802412f75d4bf43d19432de1406c7c2a .postImageUrl , .u802412f75d4bf43d19432de1406c7c2a .centered-text-area { min-height: 80px; position: relative; } .u802412f75d4bf43d19432de1406c7c2a , .u802412f75d4bf43d19432de1406c7c2a:hover , .u802412f75d4bf43d19432de1406c7c2a:visited , .u802412f75d4bf43d19432de1406c7c2a:active { border:0!important; } .u802412f75d4bf43d19432de1406c7c2a .clearfix:after { content: ""; display: table; clear: both; } .u802412f75d4bf43d19432de1406c7c2a { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u802412f75d4bf43d19432de1406c7c2a:active , .u802412f75d4bf43d19432de1406c7c2a:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u802412f75d4bf43d19432de1406c7c2a .centered-text-area { width: 100%; position: relative ; } .u802412f75d4bf43d19432de1406c7c2a .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u802412f75d4bf43d19432de1406c7c2a .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u802412f75d4bf43d19432de1406c7c2a .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u802412f75d4bf43d19432de1406c7c2a:hover .ctaButton { background-color: #34495E!important; } .u802412f75d4bf43d19432de1406c7c2a .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u802412f75d4bf43d19432de1406c7c2a .u802412f75d4bf43d19432de1406c7c2a-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u802412f75d4bf43d19432de1406c7c2a:after { content: ""; display: block; clear: both; } READ: Delusional Disorder Treatments EssaySemi-Self-Contained Diving Suit The demand valve played a critical part in the later development of one form of scuba apparatus. In the 1920s, a French naval officer, Captain Yves Le Prieur, began work on a self-contained air diving apparatus that resulted in 1926 in the award of a patent, shared with his countryman Fernez. This .

The Equal Family of Words

The Equal Family of Words The Equal Family of Words The Equal Family of Words By Mark Nichol This post discusses a family of words that pertain to balance, impartiality, or uniformity. The root equi-, which forms without the i when it precedes a vowel, ultimately derives from the Latin adjective aequus, meaning â€Å"even† (which is not related to equus, meaning â€Å"horse† and the source of equestrian). Equal refers to a state of balance, and the noun form is equality; a person or system that favors or promotes equality is an egalitarian. (The consonantal change occurred in French.) Equity is the quality of fairness, though the word also has senses in finance and in property ownership of rights or value. The adjectival form is equitable, and equitably is the adverbial form. The antonym, with the same variations, is inequity, though iniquity, which means â€Å"wickedness,† stems from the same source. (Its adjectival form is iniquitous, and the noun is formed by attaching to that word the suffix -ness.) To equate is to balance or compare, or to make even or smooth; the act of doing so is equation. (That noun also denotes a logical or mathematical expression.) Equanimity is fairness, and equilibrium is mental or physical balance. The root word of the former term is a form of animus, meaning â€Å"mind† or â€Å"spirit,† so a literal translation is â€Å"even mind,† and the root word of the latter term is derived from libra, meaning â€Å"balance† or â€Å"scale,† so equilibrium literally means â€Å"even balance.† (Equanimity has no adjectival form, but equilibrious, though rare, serves that function for equilibrium.) Equivalence (equivalency is a variation) is literally â€Å"equal worth†; the adjectival form is equivalent. The source of the root of equivocation is also that of vocal and voice; literally â€Å"equal voice,† the word has pejorative senses of â€Å"avoiding commitment to what one says† or â€Å"using language to deceive.† One is described as equivocating or being equivocal. Equinox derives from the Latin word for â€Å"equality of night (and day)†- the root nox is related to the first syllable of nocturnal (and both are cognate with night)- and refers to the two days of the year, six months apart, when day and night are of identical duration. A word that may not be an apparent relative of those described above is adequate, which means â€Å"sufficient.† (Its Latin forebear literally means â€Å"make equal.†) Depending on context, the word can be neutral or disparaging. And the rare term equiparation means â€Å"equal treatment.† (The root syllable is related to par and per, which pertain to value.) Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Vocabulary category, check our popular posts, or choose a related post below:12 Signs and Symbols You Should KnowHang, Hung, HangedOne "L" or Two?

International Human Resource Management Essay Example | Topics and Well Written Essays - 3500 words

International Human Resource Management - Essay Example The workforces of firms are seen as the main resources that enable competitive advantage. The practices of Human Resource Management (HRM) have led to dramatic developments in developed countries such as the United Kingdom and the United States of America, as well as many developing economies such as India (Budhwar and Khatri, 2001). The Indian economy is characterized by huge growth in Foreign Direct Investments (FDI) made by multinational corporations entering different sectors of the economy. This economic status requires companies that tend to invest in the Indian economy to have special and modernized people management practices. Human Resource Management (HRM) systems and practices may vary from one country to another, as cultural and national factors influence the ways that human resources are managed across the globe. In this paper I will illustrate the distinguishing features of various HRM systems that Indian people practice in their organizations in terms of recruitment an d retention, training and development, and performance and reward management. Challenges facing Indian HR practices will also be examined. 2. Culture in India Culture in India is predominantly affected by the following factors: 2.1 Power distance Many Indians believe that power and wealth are unequally distributed within the country and that this situation is badly in need of change. Strong organizational hierarchy leads to the occurrence of both respected and disregarded positions among employees. The caste system, which is largely accepted in India, cannot be changed, although barriers between castes are shrinking and ‘untouchability’ was declared illegal in 1949. Caste is thought to be determined by behavior in former lives and is therefore accepted as fate. This affects the entire life of Indians, including their social status and profession (Khan-Panni and Swallow, 2009 {in Hollinshead 2009}). 2.2 Uncertainty avoidance In India there is a relatively low level of un certainty compared to other countries. Structures and traditions play key roles in reducing uncertainty, as Indians respect traditions, caste and heritage; elements that determine their role in society (Khan- Panni and Swallow, ibid {in Hollinshead 2

The Age of Global Communications Technology and a Cause for Worry for Essay

The Age of Global Communications Technology and a Cause for Worry for the Subsequent Spread of Westernization - Essay Example It is a factor that assists in determining the speed with which human beings are able to grow and develop on a personal as well as societal basis. The internet is one such form of global communication technology in the world today. Over the last few decades it has spread all over the world massively, wiring almost every corner of the world and helping in spreading information and resources to every nook and cranny. This paper is a reflection of how this same global communication technology, in the form of the internet, has helped to spread westernization all over the world within the span of a very short period, how this spreading of the western culture has been affecting various parts of people’s lives, namely, culture, politics, business, science and technology; and whether or not this very spread of westernization, affecting all these portions of a person’s life, is a cause for worry for the rest of the world or not. The world has become almost like a small village, with almost each and every person connected to the other. All kinds of information can be found online with the help of the internet. In the last few decades, the internet has also become a very common and affordable phenomenon taking over every person’s household; most people look for the feature of having internet on their cell phones, smart phones, personal computers, laptops, and any other aspect of their life that may have the option of being connected to the World Wide Web consortium. Information from various kinds of libraries, government agencies, NGOs, offices etc, from all around the world can be available easily on a person’s private laptop with the click of the mouse; such resources help in researching, writing as well as gaining more and more knowledge on vast topics. Sitting in one’s bedroom, a person can conduct meetings worldwide through video conferencing, play multi player games with people from around the world, social network with friends and family and do so much more. (Huntington, Samuel) The internet is thus that part of the global communication technology which does not restrict a person from knowing more about anything. The internet is also mostly free to anyone wanting to make use of it, and thus its appeal grows even more. However, the question remains, has the widespread use of this part of technology led to the spreading of western culture, and if it has, then is this westernization a cause for worry for the rest of humanity? Westernization is the adoption of western thoughts, ideas and beliefs, in terms of science, technology, industry, politics and culture. It also includes aspects like religion, philosophy and anything else that includes the adoption and usage of foreign thoughts coming from the West. It is thus the process of inculcating values and ideologies from the west into an indigenous thought process. Westernization basically comes from the acceptance and implementation of ideals from Europe and Amer ica. Since these regions have been known to dominate the world for a good period of time since the modern world took its course, they have been said to have left behind their values and way of living life in the countries and colonies they had captured back then. Most countries around the world have been under the rule of Europe for a very long time in the past. Others have been a part of American cultures and ideals before they broke free and started forming their own governments and democracies. However, despite breaking away from these parent overriding rules, they still retain a vast amount of culture from them. For example, India was ruled

Climate Change Essay Example for Free

Climate Change Essay Climate change also known as global warming is a worldwide natural phenomenon that has threatened the existence of many plant and animal species as well as the human race. Because of the significant amount of greenhouses trapped within the earth’s atmosphere, the planet is on the verge of having erratic and unpredictable climate patterns. For the last decade, the world has witnessed the initial effects of climate change particularly during the Hurricane Katrina tragedy and the intensified drought in Africa. According to the â€Å"Intergovernmental Panel on Climate Change† (IPCC), in the future, the likelihood of experiencing worse conditions of flood, drought and â€Å"other forms of extreme weather† will be rampant. Eventually, this will only lead to more loss of life and the destruction of the biosphere (United Nations Environment Programme). The common green house gas that is emitted into the atmosphere is carbon dioxide (CO2) which is being produced at an alarming rate. During the industrial revolution, the CO2 emission was measured at 280 parts per million (ppm) but now in the modern age, the level of CO2 has reached 390 ppm and it is continuously increasing by 1. 5 to 2 ppm every year. Based on the research conducted by environmental experts, the temperature in the earth’s atmosphere should only be at 2 degrees Celsius in order for all life forms to tolerate the warmth or coldness of the atmosphere. Also, scientists disclosed that there is a â€Å"50 per cent chance of keeping to 2 °C if the total GHG concentration remains below 450 ppm† (United Nations Environment Programme). Given these data, it has been evident that the production of green house gases had greatly affected the dynamics of the environment. As a result, a set of related problems have surfaced such as amplified carbon emissions, dependence on fossil fuels and use of excessive natural raw materials and energy for infrastructures. In the contemporary world, fossil fuels have been considered as one of the essential elements needed to live a comfortable modern life. In its basic form, fossil fuels are not damaging but the moment they are burned that is the only time they become harmful because they produce carbon dioxide. More so, the quantity of CO2 yielded would depend on the fuel’s carbon content. For the production of a â€Å"unit of energy,† more or less ? of CO2 is generated from coal. According to the statistics, â€Å"fossil fuels supply 85%of the primary energy consumed in the United States and are responsible for 98% of emissions of carbon dioxide. † More so, a startling figure of 80% has been attributed to the â€Å"carbon dioxide emissions† of many Americans which is credited to the utilization of â€Å"coal and petroleum fuels. † Though the industrial sector is the biggest consumer of energy, it is not the highest producer of CO2 emission. Because of the dependence of the transportation segment in petroleum, it has become the number one emitter of CO2 (Energy Information Administration). Also, the commercial and residential sectors contribute to the energy consumption by being too reliant on electricity produced by fossil fuels. Given this circumstance, the US government had signed the Kyoto Protocol which is intended to dramatically lessen carbon emissions across the globe. However, the US withdrew from its commitment and since then its CO2 production had risen to â€Å"more than 15% above 1990 levels. † More so, former President Bush disclosed in 2001 that the US government would not ratify the Kyoto Protocol because it would only result to a financial crisis and other countries particularly the developing ones were not compelled to reduce their CO2 production. Furthermore, he mentioned that CO2 reduction would be more possible if it is done in a voluntary manner and â€Å"through the development of cleaner technologies† (BBC). Since little efforts have been implemented to stop the emission of CO2 and to break the dependence towards fossil fuels, the natural resources are rapidly depleting and the earth’s temperature is continuously rising. However, there is still hope for this worsening environmental situation. Many alternative methods and products that can be utilized in order to mitigate the effects and eventually stop climate change. There are three potential policies that can be implemented by every government or institutions in the world which are the following: (1) Transportation conservation; (2) Use of Biofuel; and (3) Building Efficiency. These policies can significantly address the issues concerning climate change if it will be solidly implemented by concerned organizations or government agencies and strongly supported by the public. Transportation conservation is a process that involves the act of minimizing the use of gas-powered vehicles that emit the harmful carbon gases. The policy concerning transportation conservation can be implemented in the community or national level in order to feel its utmost impact to people’s daily living and even in the environment. There are many ways on how to make this policy work. The promotion for the use mass public transit would be an initiative that will lessen the consumption of fuel gas thus carbon emissions. Based on statistics, there over 65% of the population drive alone, only 20% practices carpool, â€Å"5% walk, 3% work at home† and a shocking 7% uses the public transit system specifically in the states of Chicago and New York. Through this, an ordinary individual can save up an average of 700 gallons of gas annually which costs $1000 to $2000 (University of Oregon). Second, in order to minimize travel, people can opt to work at home (telecommuting) or close to their home. By adapting this lifestyle, people would be less dependent on the use of cars or any type of vehicles. More so, people can opt to walk or use a bike or any vehicle that does not require gas in order to go from point A to point B. Once this is implemented and carried out by thousands of people, it is definite that there will be a significant decline in the earth’s temperature. It has done before during World War II and is surely possible and doable in the modern era. Another solution would be to remove the dependence to fossil fuel gas. It is not easy to disregard the conveniences that people have grown into. But by seeking alternative ways to power the people’s vehicles, the earth’s atmosphere can still be salvage. Biofuel is a renewable energy that is harvested from renewable sources including biomass such as wheat and corn. Unlike fossil fuels, these natural resources can easily be produced in an environmentally-friendly way. The many benefits of using biofuel are â€Å"energy security, reduce greenhouse gas and pollutant emissions, improve vehicle performance, enhance rural economic development and, under the right circumstances, protect ecosystems and soils† (International Energy Agency 11). If biofuel will be imposed as the perfect alternative to gas, it will make a huge difference in resolving climate change. On the other hand, the consumption of energy of infrastructure also contributes in the increase of the releases of CO2. Usually, buildings in the US use up to 40% of energy and 70% electricity. Government and non-governmental organizations have started to campaign for the construction of green or smart buildings. This type of infrastructure focuses on the optimal use of the natural resources and energy for a â€Å"large-scale avoidance of greenhouse gas emissions and reduction in U. S. demand for fossil fuels† (Massachusetts Institute of Technology). To be able to build energy efficient infrastructures, certain green standards must be established. But first, owners of existing commercial buildings must be persuaded to modify their buildings to become energy efficient which will help them save more money and more profits (Klustner). Among the three mentioned potential policies on climate change, transportation conservation is the best and practical way to alleviate the effects of global warming. It is an easy and simple method that everyone can follow. However, in order for this policy to work, public support and implementation sustainability must be guaranteed. Works Cited â€Å"Biofuels for Transport: An International Perspective. † 2004. International Energy Agency. 23 March 2009 http://www. iea. org/textbase/nppdf/free/2004/biofuels2004. pdf â€Å"Building efficiency technologies. † 2009. Massachusetts Institute of Technology http://web. mit. edu/mitei/research/innovations/efficiency. html â€Å"Climate change: The big emitters. † 4 July 2005. BBC. 23 March 2009 http://news. bbc. co. uk/1/hi/sci/tech/3143798. st â€Å"Greenhouse Gases, Climate Change, and Energy. † May 2008. Energy Information Administration. 23 March 2009 http://www. eia. doe. gov/bookshelf/brochures/greenhouse/Chapter1. htm Klustner, Kevin. â€Å"The Six Degrees of Building Efficiency. † 5 September 2007. Greenerbuildings. com. 23 March 2009 http://www. greenerbuildings. com/feature/2007/09/05/the-six-degrees-building-efficiency â€Å"Saving energy in the Transportation Sector. † 1999. University of Oregon. 23 March 2009 http://zebu. uoregon. edu/1999/ph161/l24. html â€Å"What is Climate Change?. † N. d. United Nations Environment Programme. 23 March 2009 http://www. unep. org/themes/climatechange/whatis/index. asp

Physics of Firearms Essay -- physics firearm gun guns rifle pistol

A firearm, in the most basic form, consists of a barrel, an action, a firing mechanism, a stock and a sighting device. No matter the form of the firearm, the same basic principles of physics and chemistry apply. The study of these principles is called ballistics. There are three types of ballistics, internal, external, and terminal. Internal ballistics is the study of the flight of a projectile inside a firearm. External ballistics is the study of the flight of a bullet after leaving the muzzle and until it hits the target. Terminal ballistics is the study of the effects of a projectile on a given target. Because this essay deals with the flight of the bullet, terminal ballistics will not be discussed. Internal ballistics is the study of the flight of a projectile inside the firearm. The main components of internal ballistics include the firing process, rifling, and recoil. The Firing Process The firing process begins when the trigger of a gun is pulled. This releases the firing pin, allowing it to collide with and ignite the primer and cartridge. As the cartridge burns, it produces a hot gas that increases the temperature and pressure inside the cartridge. Once the pressure of the cartridge exceeds the friction holding the bullet in place, the bullet moves down the barrel of the rifle. When the bullet leaves the barrel the pressure decreases greatly and the hot air expands as it leaves the barrel. This is the cause of the loud bang when a rifle is shot. Rifling The accuracy of a firearm depends greatly on the spin of the bullet as it leaves the rifle. The spin of a bullet is caused by the grooves (rifling) cut on the inside of the barrel of the gun. Without a spin on the bullet, there would be no gyroscopic forces ... .... Unless a shooter has a ballistic simulator, they rely on drop tables which are provided by cartridge manufacturers. Shooting at an Angle In the "zeroing a rifle" section we required that the line of sight to the target was horizontal. What if this is not the case? The picture below shows the path a typical bullet will take when shot at a target that is not at the same elevation as the shooter, or upward angle. If a shooter shoots at a target whos line of sight to the target is not horizontal and the line of sight distance (or slant range (Rs)) is equal to the zero range of the rifle and he aims directly at the target, the shooter will shoot over the target. (See diagram) To correct for this, the shooter must compensate for the zeroing of the rifle. This is done by finding the horizontal range to the target (Rh). One can use trigonometry: Rh = Rs cos(a).

Article 21 of the Constitution of India After Maneka Gandhi’s Case Essay

INTRODUCTION To a great extent, the Supreme Court of India finds its strength in Article 21 of the Constitution, for the reason that much of its judicial activism has been based on interpreting the scope of this Article. Majority of the PIL cases have been filed under this Article only. The Supreme Court is now known as an activist court. There has been no change in the words used in Article 21, but there has been a change in the way it has been interpreted. The scope of the Article has expanded considerably post the Maneka Gandhi decision. This will be critically analysed in the following few pages. ARTICLE 21 The Article reads- â€Å"No person shall be deprived of his life or personal liberty except according to procedure established by law.† Constituent Assembly Debate Over Article 21 India’s constitutional system was rooted in the traditions of British parliamentary sovereignty and legal positivism. Thus, the emergence of a strong Supreme Court challenging parliamentary legislation via substantive due process was unlikely given this traditional historical context. But aside from the historical legacy of British rule and legal positivism, two specific historical factors directly influenced the Constituent Assembly to explicitly omit a due process clause in the section on Fundamental Rights. The first was the influence of United States Supreme Court Justice Felix Frankfurter on Constitutional Adviser B.N. Rau, who traveled to Britain, Ireland, the United States and Canada in 1947 to meet with jurists regarding the drafting and framing of the Indian Constitution. The second factor was the tumultuous and chaotic period of communal violence that gripped Northern India as a result of the partition of Muslim Pakistan from Hindu India, which led the framers of the Indian Constitution to remove the due process clause from their draft constitution for the protection of individual liberty.1 The Constituent Assembly of India originally included a due process clause in the Fundamental Rights provisions associated with preventive detention and individual liberty in the initial draft version adopted and published in October of 1947. At this point, a majority of members of the Constituent Assembly favored inclusion of a due process clause, because it would provide procedural safeguards against detention of individuals without cause by the government. However, Rau had succeeded in qualifying the phrase liberty with the word â€Å"personal,† effectively limiting the scope of this clause as applying to individual liberties, and not property rights. After this draft version was published, Rau embarked upon a multi-nation trip to the United States, Canada, and Ireland to meet with jurists, constitutional scholars, and other statesmen. In the United States, Rau met with American Supreme Court Justice Felix Frankfurter, a student of Harvard Law professor James Bradley Thayer, whose writings about the pitfalls of due process as weakening the democratic process had already impressed Rau prior to the visit. In his meeting with Rau, Frankfurter indicated that he believed that the power of judicial review implied in the due process clause was both undemocratic and burdensome to the judiciary, because it empowered judges to invalidate legislation enacted by democratic majorities. 2 Frankfurter had a lasting impression on Rau, who upon his return to India, became a forceful proponent for removing the due process clause, ultimately convincing the Drafting Committee to reconsider the language of draft Article 15 (now Article 21) in January 1948. In these meetings Rau apparently was able to convince Ayyar, the crucial swing vote on the committee, of the potential pitfalls associated with substantive interpretation of due process, which Frankfurter had discussed extensively with Rau. Ayyar, in ultimately upholding the new position on the floor of the Assembly in December 1948, supported removing the due process clause on the grounds that substantive due process could â€Å"impede social legislation.† With the switch in Ayyar’s vote, the Drafting Committee endorsed Rau’s new preferred language-replacing the due process clause with the phrase â€Å"according to the procedure established by law,† which was apparently borrowed from the Japanese Constitution.3 Protection of Life and Personal Liberty Gopalan’s Case Immediately after the Constitution became effective, the question of interpretation of the words â€Å"life and personal liberty† arose before the court in the case A.K. Gopalan v. State of Madras.4 In this case, the Petitioner had been detained under the Preventive Detention Act, 1950. The petitioner challenged the validity of his detention on the ground that it was violative of his Right to freedom of movement under Article 19(1)(d), which is the very essence of personal liberty guaranteed by Article 21 of the Constitution. He argued that (i) the words ‘personal liberty’ include the freedom of movement also and therefore the Preventive Detention Act, 1950 must also satisfy the requirements of Article 19(5). (ii) It was further argued that Article 21 and Article 19 should be read together as Article 19 laid out the substantive rights while Article 21 provided procedural rights. (iii) It was also argued that the words â€Å"procedure established by law† actually meant â€Å"due process of law† from the American Constitution which includes principles of natural justice and the impugned law does not satisfy that requirement. Thus the main question was whether Article 21 envisaged any procedure laid down by a law enacted by a legislature, or whether the procedure should be just, fair and reasonable. On behalf of Gopalan, an argument was made to persuade the Supreme Court to hold that the courts could adjudicate upon the reasonableness of the Preventive Detention Act, or for that matter, any law depriving a person of his personal liberty. Majority Decision in Gopalan The Supreme Court ruled by majority that the word ‘law’ in Article 21 could not be read as meaning rules of natural justice. These rules were vague and indefinite and the Constitution could not be read as laying down a vague standard. The Court further interpreted the term ‘law’ as ‘State made law’ and rejected the plea that the term ‘law’ in Article 21 meant jus naturale or principles of natural justice. Justice Fazl Ali’s Dissenting Judgment Justicle Fazl Ali in his dissenting judgment observed that preventive detention is a direct infringement of the right guaranteed in Art. 19 (1) (d), even if a narrow construction is placed on the said sub-clause, and a lawrelating to preventive detention is therefore subject to such limited judicial review as is permitted by Art. 19 (5). There is nothing revolutionary in the view that â€Å"procedure established by law â€Å"must include the four principles of elementary justice which inhere in and are at the root of all civilized systems of law, and which have been stated by the American Courts and jurists as consisting in (1) notice, (2) opportunity to be heard, (3) impartial tribunal and (4) orderly course of procedure. These four principles are really different aspects of the same right, namely, the right to be heard before one is condemned. Hence the words â€Å"procedure established by law â€Å", whatever its exact meaning be, must necessarily include the principle that no person shall be condemned without hearing by an impartial tribunal. Relationship among Articles 21, 22 and 19 An attempt was made in Gopalan to establish a link between these three Articles. The underlying purpose was to persuade the Court to adjudge the reasonableness of the Preventive Detention Act. It was therefore argued that when a person was detained, his several rights under Article 19 were affected and thus, the reasonableness of the law, and the procedure contained therein (regarding reasonable restrictions), should be justiciable with reference to Arts. 19(2) to (6). Rejecting the argument, the Court pointed out that the word ‘personal liberty’ under Article 21 in itself had a comprehensive content and ordinarily, if left alone, would include not only freedom from arrest or detention, but also various freedoms guaranteed by Art. 19. However, reading Articles 19 and 21 together , Article 19 must be held to deal with a few specific freedoms mentioned therein and not with freedom from detention whether punitive or preventive. Similarly, Art. 21 should be held as excluding the freedoms dealt with in Article 19. The Court ruled that Arts. 20 and 22 constituted a comprehensive code and embodied the entire constitutional protection in relation to life and personal liberty and was not controlled by Article 19. Thus, a law depriving personal liberty had to conform with Arts. 20 and 22 and not with Art. 19, which covered a separate and distinct ground. Article 19 could be invoked only by a freeman and not one under arrest. Further, Article 19 could be invoked only when a law directly attempted to control a right mentioned under it. Thus, a law directly controlling a citizen’s right to freedom of speech and expression could be tested under the exception given under Art. 19(2); and a law that does not directly control the fundamental freedoms under Article 19, could not be tested under the clauses (2) to (6) of Article 19. This judicial approach meant that a preventive detention law would be valid, and be within the terms of Article 21, so long as it conformed to Article 22. Due Process of Law The V Amendment of the US Constitution lays down inter alia that â€Å"no person shall be deprived of his life, liberty or property, without due process of law.† The use of the word ‘due’ in this clause is interpreted to mean ‘just’, ‘proper’ or ‘reasonable’ according to judicial review. The courts can pronounce whether a law affecting a person’s life, liberty or property is reasonable or not. The court may declare a law invalid if it does not accord with its notions of what is just, fair and reasonable. Thus, this clause known as the ‘due process clause’ has been the most significant single source of judicial review in the US. It was contended in Gopalan that the expression procedure established by law in Art. 21 was synonymous with the American concept of ‘procedural due process’, and therefore, the reasonableness of the Preventive Detention Act, or for that matter, of any law affecting a person’s life or personal liberty, should comply with the principles of natural justice. The Supreme Court rejected this contention giving several reasons: i) The word ‘due’ was absent from Article 21. ii) The fact that the words ‘due process’ were dropped from draft Article 15 (present Article 21), signified the intention of the Constituent Assembly, that was to avoid the uncertainty surrounding the due process concept in the USA. iii) The American doctrine generated the countervailing but complicated doctrine of police power to restrict the ambit of due process, i.e., the doctrine of governmental power to regulate private rights in public interest. If the doctrine of due process was imported into India, then the doctrine of police power might also have to be imported, and which would make things very complicated. The ruling thus meant that to deprive a person of his life or personal liberty- i) There must be a law ii) It should lay down a procedure iii) The executive should follow this procedure while depriving a person of his life or personal liberty. Criticism Gopalan was characterized as the ‘high-water mark of legal positivism.’ Court’s approach was very static, mechanical, purely literal and was coloured by the positivist or imperative theory of law, which studies the law as it is. Article 21 was interpreted by the majority to mean that Art. 21 constituted a restriction only on the executive which could not act without law and that it was not applicable against legislative power, which could make any law to impose restraints on personal liberty, however arbitrary they may be. GOPALAN TO MANEKA: 1950-1977 Gopalan held the field for almost three decades. It can be observed during this period from the court decisions that the two major points settled in the case [that is, firstly that Articles 19, 21 and 22 are mutually exclusive and independent of each other, and secondly that Article 19 was not to apply to a law affecting personal liberty to which Article 21 would apply] got diluted to a great extent until finally in Maneka Gandhi’s case this position was reversed. The decisions immediately proceeding Gopalan’s case were decided on the same basis. For example, in Ram Singh v. Delhi5, where a person was detained under the Preventive Detention Act for making speeches prejudicial to the maintenance of public order, at a time when public order was not contained under Article 19(2), the Supreme Court refused to assess the validity of preventive detention under Article 22 with reference to Article 19(1)(a) read with Article 19(2) stating that even if a right under Art. 19(1)(a) was abridged, the validity of the preventive detention order could not be considered with reference to Art. 19(2) because of the Gopalan decision that legislation authorizing deprivation of personal liberty did not fall under Art. 19 and its validity was not to be judged by the criteria in Art. 19. The beginning of the new trend can be found in RC Cooper v. Union of India6, where Article 31(2) which had been amended to dilute the protection to property, the Court established a link between Article 19(1)(f) (right to property) and Article 31(2). But the draconian Gopalan ruling found its way back and reached the lowest point in ADM Jabalpur v. Shivkant Shukla7, remembered as the black day in Indian Constitutional history. In this case the political dissenters of the Indira Gandhi government were arrested and Shivkant Shukla contended that this was in violation of their right to life and personal liberty and so the writ of habeas corpus should be issued. Court held that during the period of emergency, a person could be detained and his right to life and personal liberty under Article 21 could be suspended, and such suspension could not be challenged and the writ of habeas corpus could not be issued during the emergency. This case showed that Article 21 could not play any role in providing any protection against any harsh law seeking to deprive a person of his life or liberty. It is the dissenting judgment of Fazl Ali J that was subsequently applied in the decision in Maneka Gandhi’s case and the cases after that, regarding the right to life and personal liberty. MANEKA GANDHI’S CASE In Maneka Gandhi v. Union of India8 and ever since, the Supreme Court has shown greater sensitivity to the protection of personal liberty. The court has reinterpreted Article 21 and overruled its Gopalan decision and which, in the words of MP Jain, can be regarded as a highly creative judicial pronouncement on the part of the Supreme Court. In this case, Maneka Gandhi’s passport was impounded by the Central Government under the Passport Act in the interest of the general public, as was provided under S. 103(c) of the Passport Act. This was challenged on the ground of being arbitrary to Article 21 and also because this was done without affording her a chance to be heard. The Court observed that as the right to travel abroad falls under Article 21, principles of natural justice must be observed and the right of hearing should be given, even though not expressly provided for under the statute. Some of the main propositions laid down by the court in this case are as follows: 1. The court reiterated the proposition that Articles 14, 19 and 21 are inter-related and not mutually exclusive. This means that a law prescribing a procedure to deprive a person of their personal liberty, should conform to the provisions under Article 19. Moreover, the procedure established by law under Article 21 must meet the requirements of Article 14. According to K. Iyer, J, no Article in the Constitution pertaining to a Fundamental Right is an island in itself. Just as a man is not dissectible into separate limbs, cardinal rights in an organic constitution have a synthesis. Here, the dissenting judgment of Justice Fazl Ali in Gopalan’s case was followed. 2. The court emphasized that the expression ‘personal liberty’ was of the widest amplitude covering a variety of rights which go to constitute the personal liberty of man. Some of these attributes have been raised to the status of distinct fundamental rights and given additional protection under Article 19. 3. The most significant aspect of Maneka’s decision is the reinterpretation by the court of the expression ‘procedure established by law’ used in Article 21. It now means that the procedure must satisfy certain requisites in the sense of being fair and reasonable. The procedure cannot be arbitrary, unfair or unreasonable. The reasonableness must be projected in the procedure contemplated by Article 21. IMPACT OF MANEKA GANDHI’S DECISION Article 21 which had lain dormant for nearly three decades was brought to life by the Maneka Gandhi decision. Since then Article 21 has been on its way to emerge as the Indian version of the American concept of due process. It has become the source of many substantive rights and procedural safeguards to the people. Some of the broad fields of this impact will be discussed as below: 1. Interpretation of the Word Life In Francis Coralie9 the Supreme Court, following the principle laid down in Maneka Gandhi’s case, has interpreted the meaning of life as has been interpreted by the US Supreme Court in Munn v. Illinois10, and held that the expression ‘life’ under Article 21 does not connote merely physical or animal existence but embraces something more. As recently as 2006, the Supreme Court has observed that Article 21 embraces within its sweep not only physical existence but also the quality of life. These cases only reflect a part of the scope and ambit of the word ‘life’ under Article 21, which has been extended widely by the Supreme Court over the years proceeding Maneka. There have been a number of areas in which the Supreme Court has related some of the Directive Principles of State Policies to the word ‘life’ under Article 21 and made it enforceable as a fundamental right. A classic example of this is the large number of environment related cases filed by MC Mehta. 2. Personal Liberty It does not mean merely the liberty of body, i.e., freedom from physical restraint or freedom from confinement within the bounds of a prison. The expression ‘personal liberty’ is not used in a narrow sense but as a compendious term to include within it all those variety of rights of a person which go to make personal liberty of a man. To begin with, the expression ‘personal liberty’ in Art. 21 was interpreted so as to exclude the rights mentioned under Article 19. The view was expressed in Kharak Singh v. State of Uttar Pradesh11 that while Art. 19(1) dealt with particular species of that freedom, ‘personal liberty’ in Art. 21 would take in the residue. This view was followed in Gopalan’s case as well. But the minority view expressed by Justice Subba Rao adopted a much wider concept of ‘personal liberty’. He differed from the majority view that Art. 21 excluded what was guaranteed by Art. 19. He pleaded for an overlapping approach of Arts. 21 and 19. In a recent judgment of 2009, Suchita Srivastava v. Chandigarh Administration12, the Supreme Court asserted the strict boundaries of ‘personal liberty’ but that such liberty must also accommodate public interest. A woman’s right to make reproductive choice has been held to be a dimension of ‘perso nal liberty’ within the meaning of Art. 21. 3. Law Ordinarily, the word law in Article 21 denotes an enacted law, i.e., a law made by the Legislature. But in AK Roy v. Union of India13, the question was whether an ordinance in the context of National Security Ordinance, 1980, promulgated by the President to provide for preventive detention in certain cases and connected matters, a law? The petitioner argued that since this was made by an executive it was not law and could not, thus, deprive a person of their ‘personal liberty’. The Supreme Court held that an ordinance passed by an executive is well within the meaning of ‘law’ and must therefore, also be subject to Fundamental Rights, just like an Act of the Legislature. 4. Procedure After Maneka Gandhi, it is now established that the procedure for purposes of Art. 21 has to be reasonable, fair and just. The Supreme Court has reasserted in Kartar Singh v. State of Punjab14 that the procedure contemplated by Art. 21 is that it must be ‘right, just and fair’ and not arbitrary, fanciful or oppressive. In re The Special Courts Bill, 1978, the Special Courts Bill proposed that a special court would be constituted to try certain persons holding high political offices during the emergency of 1975-1977. The special Court was to be presided over by a sitting or retired Judge of a High Court, to be appointed by the Central Government in consultation with the Chief Justice of India. The accused could appeal to the Supreme Court against the verdict of the special Court. For the procedure to be just, fair and reasonable, the Court suggested certain modifications: There should be a provision for transferring a case from one special court to another so as to avoid the possibility of a trial where a judge may be biased against the accused Only a sitting High Court Judge ought to be appointed, for the retired Judge would hold the office as a Judge of the special court during the pleasure of the government, and the â€Å"pleasure doctrine was subversive of judicial independence.† Instead of mere consultation, the Chief Justice’s concurrence should be there, which would inspire confidence not only of the accused but also of the entire community in the special Court. CRIMINAL JUSTICE AFTER MANEKA Arrest In Joginder Kumar v. State of Uttar Pradesh15, the Supreme Court has observed that an arrest can cause incalculable harm to a person’s reputation and self-esteem. Arrest should be made not merely on suspicion but only after a reasonable satisfaction reached after some investigation as to the genuineness and bona fides of the complaint and a reasonable belief to the person’s complicity and even as to the need to effect arrest. Speedy Trial Speedy trial has not been mentioned as a fundamental right in the Constitution. Yet the Court has declared this as a fundamental right in Hussainara Khatoon v. Home Secretary, State of Bihar (I).16 In this case, the undertrials were in prison for a long period of time, awaiting their trials. Bhagwati, J. held that although, unlike the American Constitution speedy trial is not specifically enumerated as a fundamental right, it is implicit in the broad sweep and content of Article 21 as interpreted in Maneka Gandhi’s case. This position was reiterated in Hussainara Khatoon(No. 2) and Hussainara Khatoon(No. 3). In a significant judgment in Abdul Rehman Antulay v. RS Nayak17, the Supreme Court has laid down guidelines for the speedy trial of an accused: i) Fair, just and reasonable procedure implicit in Article 21 of the Constitution creates a right in the accused to be tried speedily. Right to speedy trial is the right of the accused. The fact that a speedy trial is also in public interest or that it serves the societal interest also, does not make it any-the-less the right of the accused. ii) Right to Speedy Trial flowing from Article 21 encompasses all the stages, namely the stage of investigation, inquiry, trial, appeal, revision and retrial. That is how, this Court has understood this right and there is no reason to take a restricted view. iii) The concerns underlying the Right to speedy trial from the point of view of the accused are: (a) the period of remand and pre-conviction detention should be as short as possible. In other words, the accused should not be subjected to unnecessary or unduly long incarceration prior to his conviction; (b) the worry, anxiety, expense and disturbance to his vocation and peace, resulting from an unduly prolonged investigation, inquiry or trial should be minimal; and (c) undue delay may well result in impairment of the ability of the accused to defend himself, whether on account of death, disappearance or non-availability of witnesses or otherwise. In Sunil Batra (II) v. Delhi Administration18, it was held that the practice of keeping undertrials with convicts in jails offended the test of reasonableness in Art. 19 and fairness in Art. 21. Prison Administration In Sunil Batra (I) v. Delhi Administration19, the important question before the court was whether solitary confinement imposed upon prisoners who were under sentence of death, was violative of Articles 14, 19, 20 and 21. It was held that under Sections 73 and 74 of the IPC, solitary confinement is a substantive punishment, which can be imposed by a court of law, and it cannot be left within the caprice of prison authorities. It further observed that if by imposing solitary confinement there is total deprivation of camaraderie amongst co-prisoners, comingling and talking and being talked to, it would offend Article 21 of the Constitution. The liberty to move, mix mingle, talk, share company with co-prisoners if substantially curtailed, would be violative of Article 21 unless curtailment has the backing of law. Here we see the high regard that the Supreme Court gives to human life and personal liberty, notwithstanding a person’s jail sentence. In Prem Shankar v. Delhi Administration20, the Supreme Court has held that handcuffing should be resorted to only when there is clear and present danger of escape. Even when in extreme cases, handcuffing is to be put on the prisoner, the escorting authority must record simultaneously the reasons for doing so, otherwise the procedure would be unfair and bad in law. This is implicit in Article 21 which insists upon fairness, reasonableness and justice in the procedure for deprivation of life and liberty. Legal Aid In Hussainara21, the Supreme Court has observed that it is an essential ingredient of reasonable, fair and just procedure to a prisoner who is to seek his liberation through the court’s process that he should have legal services available to him. Providing free legal service to the poor and the needy is an essential element of any reasonable, fair and just procedure. In Suk Das22, the Court quashed the conviction of the appellant because the accused remained unrepresented by a lawyer and so the trial became vitiated on account of a fatal constitutional infirmity. The court held that free legal assistance at the cost of the State is a Fundamental Right of a person accused of an offence and this requirement is implicit in the requirement of a fair, just and reasonable procedure prescribed by Article 21. Public Interest Litigation One of the most effective instruments evolved by the Supreme Court for attaining social justice is Public Interest Litigation (PIL). Any person with a sufficient interest and acting bona fide can file a PIL in the Supreme Court under Art. 32 or Art. 226. If there is a violation of any fundamental right or legal duties and there is legal injury to a person or a class of persons who are unable to approach the court by ignorance, poverty or by any disability, social or economic, any member of the public can make an application for an appropriate direction or order or writ before the High Court under Article 226 and before the Supreme Court under Article 32 for redressal. This was the gist of the principle laid down in SP Gupta v. Union of India23, in which the Court has given considerable relaxation to the doctrine of locus standi. PILs have played an important role in the fields of prison reforms, gender justice, environment protection, child rights, education, wherein the court has constantly made an attempt to uphold the value of a dignified human life, which is not merely confined to access to food, shelter and clothing, but goes much beyond. For instance, in Vishakha v. State of Rajasthan24, an incident of rape was held to be violative of not only the right to gender equality under Art. 14, but also of the right to life under Article 21. The Supreme Court has laid down specific guidelines as to what constitutes sexual harassment at workplace, placing the responsibility on the employer to ensure the safety of their employees, also making it mandatory for all public offices to have a Women’s Cell, where the women employees could take their grievances. These guidelines can also be found in the Criminal Law Amendment Act 2013. In MC Mehta v. Union of India25, the Supreme Court has developed the concept of absolute liability regarding the payment of compensation by an enterprise engaged in dangerous and hazardous activities. The Supreme Court has also exercised epistolary jurisdiction, wherein a letter has been treated as a petition before the court. In Labourers Working on Salal Hydroelectric Project v. State of Jammu and Kashmir26, litigation was started on the basis of a letter addressed by the People’s Union for Democratic Rights to Mr. Justice D.A. Desai enclosing a copy of the news item which appeared in the issue of Indian Express pointing out that a large number of workmen working on the Salal Hydro Electric Project were denied the benefit of various labour laws and were subjected to exploitation by the contractors to whom different portions of the work were entrusted by the Central Government. In all of these cases, and a number of others, a reflection of Maneka’s decision can be found, wherein the Court has tried to uphold the sanctity of a dignified human life. CRITICAL APPRAISAL OF MANEKA’S DECISION The kind of wide interpretation that has been given to Article 21 post Maneka, has not been given to any other provision. Article 21 read with Articles 32 and 226, has become the most important weapon of judicial activism. By relating Directive Principles of State Policy with Fundamental Rights, court is granting remedies on an ever increasing scale. But it must be remembered that Directive Principles are non-justiciable in nature and cannot be enforced. Yet, the Supreme Court has gone to great lengths to enforce these by relating them to right to life. But balancing of conflicting interests is an important function of law. Function of law is social engineering. This has to be performed by both, the Legislator as well as the Judiciary. Justice Cardozo also says that the court can evolve a process for dealing with the social ills. Thus, where legislators fail to balance the interests, it is the Court which must do it. The court will be criticized for judicial over-reach, that is, for undertaking the power of the legislator and laying down a law, as it happened in Vishakha v. State of Rajasthan. But it must be realized that where the Legislators fail, the court has to step in. The gaps need to be filled. Thus, from the perspective of Roscoe Pound’s social engineering theory, which is very relevant in the present scenario, court’s actions cannot be termed as judicial overreach. CONCLUSION Thus, the decision of the Supreme Court in Maneka Gandhi’s case became the basis of the court’s decisions in subsequent cases pertaining to not only Article 21 expressly, but wherever the court found a relation between life and another aspect of it. The Court developed a theory of ‘inter-relationship of rights’ to hold that governmental action which curtailed either of these rights should meet the designated threshold for restraints on all of them. In this manner, the Courts incorporated the guarantee of ‘substantive due process’ into the language of Article 21. This was followed by a series of decisions, where the conceptions of ‘life’ and ‘personal liberty’ were interpreted liberally to include rights which had not been expressly enumerated in Part III.27 The width of Article 21 will keep expanding as long as our Supreme Court upholds its title of the activist court, and intervenes dutifully to preserve the fundamental rights of the people. The Court has, thus, played the role of a social engineer, constantly making an effort to balance the conflicting interests of the state with those of the society and the individuals. REFERENCES 1. Indian Constitutional Law, M.P. Jain, Sixth Edition (2013). 2. Constitutional Law of India, J.N. Pandey, Forty Third Edition (2006).