Alternative-Fuel Vehicles Essay Example for Free

Alternative-Fuel Vehicles Essay Atmospheric pollution is a major problem nowadays. So it is important that we should immediately find alternative fuel sources for petroleum and reduce the emission of harmful gases in the atmosphere. This has been the dream of many scientists because this will significantly reduce the emission of carbon dioxide, a green house gas, to the atmosphere. Most of these fuels can be manufactured domestically so I cut the costs of importing from other countries. Some are even derived from renewable sources. Electric cars are now being manufactured globally. Unknown to many, electricity-powered cars came into the automotive scene before its diesel and petroleum counterpart. But due to the limitations of the technology in the past, its development was stopped and diesel cars became the standard car. Most of the problems electric cars faced points to the battery. Batteries were heavy and required recharging. But there are new developments in this technology. A battery now has longer life and comes in much lighter forms. The main drawback of this car is the distance it can travel before the batteries run out. If there are enough recharging stops, like gas stations, the electric car will prove itself as a fuel-efficient and environment-friendly car. Natural gas cars are also gaining popularity. The promise of being able to fuel the car at one’s own home is hard to deny. Honda calls it a personalized solution to the fact that gasoline stations don’t sell natural gas. The Honda model Civic GX is coined as the cleanest internal combustion engine-powered vehicle ever tested by Environmental Protection Agency. However, natural gas is not renewable. A potential advantage of Hydrogen cars is that it can be used over and over again by the process of electrolysis. Although the supply hydrogen is not limited as fossil-fuels, production of such cars doesn’t come at a cheap price. Hydrogen has many advantages if used to fuel cars, but currently it is very expensive. Some car companies offer to convert diesel cars into hydrogen cars, but most of the time the price of conversion is much more expensive than the original price of the car. Also, hydrogen in normal temperature is gas and to be used as fuel it should be squeezed in high pressures so it is somewhat difficult to contain. Fuel cell cars are definitely a technology to watch for. It has the potential to minimize the use of energy while reducing harmful emissions at the same time. What sets it above the others is that it can make its own energy through certain chemical processes. Also, fuel cell cars don’t emit pollutants. But the price is almost the same for hydrogen cars, if not higher. The developments in fuel cells is rather young, it is not yet tested as compared to other alternative fuels, so it would be a risk if we utilize this technology right away. Among these alternative sources of energy, I choose natural gas. The other alternatives may score a higher grade in terms of energy advantage and minimal emission, but they are too expensive. The economy will suffer as we save the environment using Hydrogen, Electric, and Fuel Cell cars. Natural gas is widely distributed around the world. New natural gas reserves are discovered as time pass, it is just waiting for us to harness fuel from it. Most countries will be able to tap their own resources and strengthen one’s economy. The production of cars and fuel supply for natural gas cars is also very feasible compared to the other alternatives. Atmospheric pollution is increasing during each day. And since natural gas is the cheapest, we can immediately put it to use. This is the realistic approach concern the threat of global warming. We put into use something that works and will be a benefit for both the economy and environment. And after we became successful in harnessing natural gas, and the economic condition permits it, it is the time to upgrade to hydrogen or fuel cells and completely eliminate harmful emissions from vehicles. Alternative-Fuel Vehicles. (2017, Feb 19).

Week 10 Assignment Example | Topics and Well Written Essays - 750 words - 1

Week 10 - Assignment Example Although evidence has shown us that human body and human mind interacts, intimately, and affect each other, it is however difficult to understand and explain how these two aspects of human person relates and interacts. (b): Interactionism. The interactionism theory holds that, although body and mind are separate, distinct and independent substances, they however exert causal effects on one another. What this in essence means is that although the human body is extended and the human mind unextended, the two however interact closely, whereby an effect in one of them causes the corresponding event in the other, despite the fact that the two aspects of human person do not touch each other. This theory was propounded by Rene Descartes. (c): Parallelism. Parallelism theory rules out any casual interaction between the mind and the body, but holds that there is a one-on-one correspondence between events of the body and events of the brain. According to this theory, it is not the mind or the body that first experiences a given event and then causes the event on the other aspect of the body; the mind and the body will experience the given event in their own way, although there will be a one-on-one correspondence in the event experienced by the body and the mind. (f): Double aspect theory. This theory views body and mental events and processes as two different aspects of one human person. According to this theory, mind and body are not separate and distinct substances. Mind and body are merely two different attributes of a unitary human person. Question 1: According to Descartes, the main difference between the body and the soul or mind lies in the fact that, while body is material and extended, the mind or the soul is immaterial and unextended. Descartes viewed body and soul as distinct and independent substances. Question 2: In his argument on the existent of physical objects, Rene Descartes had first of all to find the basis

Racial Disparities in Correction Populations Essay

Racial Disparities in Correction Populations - Essay Example The above information, if given with critical analysis could be used to strongly prove that racial disparities in correction populations exist in the US justice system. It is important to dig on this issue because this could entirely create a significant impact on the US justice system, not only on its national and federal context, but on the entire international setting. The US, as a primary advanced and influential nation on earth, should always ensure it has substantially showed the appropriate example in all aspects especially for humanitarian cause. After all, there is a negative meaning associated with racial disparities and this could be enough at some point to remarkably refute the remarkable image of the US towards fairness in dealing with justice. There are varying opinions and even substantial justifications in line with racial disparities. The proof of these can be considered through various researches and other related studies that could potentially create meaningful ins ights about racial disparities in general. ... Justice systems employ important legal concerns. These legal acts encompass the society, and eventually groups of people. Race involves group of people so it is eventually a social group which is subject of a social construct and that it can only be refined to function well if there is prevailing justice system. Racial disparity therefore is about â€Å"unfair, unjust, unequal or unnecessary care or treatment of group of people† which can be evidently observed through the association of their race with whatever case confronting them (Loue & Sajatovic 2011, p.1260). Correctional populations defined There are varying existing definitions or concepts about correctional populations. However, in the context of the discussion in the prevailing justice system in the United States, the following are individuals that should be considered who belong to the correctional populations: they are incarcerated individuals either in prison, jail or supervised by the community that could be eith er probation or parole (Bureau of Justice Statistics 2012). Correctional populations therefore are composed of groups of people who have to face punishment or consequences of their acts as interpreted and justified by the final authority of the justice system. Evidences of racial disparities in correctional populations There are varying evidences of racial disparities in correctional populations and basically this can be illustrated by understanding the percentage of racial groups represented in a certain population, the number of individuals of a racial or minority groups that are integral parts of the criminal justice system, and many more (Walker,