Alternative Energy Sources Essay Example for Free

Alternative Energy Sources Essay What does a car, heater, and stove have in common? They are all powered by fuel sources. The most popular being fossil fuels. Fossil fuels are dead plant and animal matter that has been compressed and heated over millions of years. They are burned to create heat, which in turn creates energy. However, with heavy industrialization (agricultural and manufacturing), transportation, and personal energy use, our world’s fossil fuel supplies are rapidly depleting. Even more, fossil fuels pollute our environment. Scientists are on the search for alternative energy sources so the world can be weaned of its fossil fuel supply. Out of the many alternative fuel sources, I will be focusing on solar and wind power. Solar power is simply the conversion of energy from the sun into usable energy. Solar energy can be harvested in two ways: indirectly by using the heat of the sun and directly by utilizing its energy to turn it into electricity. What makes solar power so popular is the fact that it can be used anywhere that has sunlight. Solar power can be collected in 3 different ways: solar heat collectors, solar thermal concentrating systems, and photovoltaics. Solar heat collectors are collectors that are designed to absorb the heat from the sun. The most common ones are flat plate collectors that have a dark absorber plate that is covered with a transparent plate (usually glass). In between the two plates are pipes that are filled with heat-transferring liquid like antifreeze. When sunlight strikes the absorber plate in the collector, the heat is absorbed into the liquid, which is then passed through pipes to the water heater. When the liquid is finished being used, it flows back up to the plate where it is heated again and repeats the process. Solar thermal concentrating systems use mirrors and lenses to concentrate the energy of the sun into a small area to produce energy. The energy heats up molten salt in pipes that run along the concentrating system which is the power source of a generation system. The concentration system can make the liquid in the pipes heat up to 3000 degrees Celsius in some cases, which makes this method preferable for industrial use or electricity. Finally, the use of photovoltaics directly converts light from the sun into electricity at the atomic power. The system consists of a solar cell, which is made of semi-conductive materials like silicon. The solar cells are made to create an electric field. When the light from the sun hits the cell, the lectrons are separated from the atoms and form an electric current, which produces electricity. There are many benefits for using solar power as an alternative fuel source. 1) Solar power is constantly renewable. The energy from the sun will virtually never run out. 2) The sun is also available world wide so it is a power that everyone can use. 3) Solar energy is also very low maintenance; after installation of the systems there is barely any other work involved with it. In addition, 4) it is a silent producer of energy, even with the photovoltaic cells. However there are a few cons that go along with solar energy. ) Even though the sun is a free source of energy, the cost of solar cells can be quite costly with most cells starting a $1000 for one. 6) Solar energy can only be produced when the sun is out so that means about half of the day solar panels aren’t generating electricity. Lastly, 7) weather can affect the efficiency of the solar panels. Wind power is the conversion of wind energy into a useable form of energy. Wind power is used widely around the world since there is wind everywhere, however you are most likely to find wind power being used in higher elevations (such as hills) since that is where the wind is the strongest. Wind power is harvested with wind turbines. The process is pretty simple: the wind spins the turbines, which activates a generator, which converts the energy into electricity. Like solar power energy, 1) wind power is sustainable and renewable since wind will always be around to move the turbine. 2) Wind power is also free. 3) The land that the wind turbines are on can be shared for other uses such as farming. 4) Since wind power is available worldwide, the US can use the turbines as its own fuel source and free its dependence from foreign oil. On the negative side, 5) wind turbines can take up a lot of space. ) Even though it is a clean source, the turbines can be very noisy which may be bothersome to nearby communities. Lastly, 7) the cost of wind turbines and the generators are far more expensive than fossil fuels, which makes it a poor competitor cost-wise. With the depletion of fossil fuels, alternative fuel sources are the obvious choice for the present and future. Two of these sources, solar and wind power, are both revolutionizing the way we produce electricity, while benefiting the environment. Even though they both have a few cons, the fact that we have energy sources that are both sustainable and renewable is far superior to the latter.

The Greatest Commandment Essay -- Bible, God

The Greatest Commandment â€Å"to love God† is the first and greatest commandment of all. In researching this commandment I have found that to love God is truly what God really wants from all of us. The commandment is referenced in all four of the gospels of the New Testament as well as being referenced in the Old Testament through the Ten Commandments in which the New Testament was based on. This commandment is so powerful it is found in Luke 10:25-37, Mark 12:28-34, John 13:34-35 and Matthew 22:34-40. It is also found in Deuteronomy 6:5 and also based on the Ten Commandments in Exodus 20:1-17. Take for instance the gospel of Matthew in where the New Testament begins with the book of Matthew revealing the fulfillment of the prophecies in Jesus Christ, the long-awaited Messiah. Matthew was a Jewish tax collector for the Roman government who was called upon by Jesus to become one of the 12 apostles which often in his gospel will give us an eye witness account. Matthew wrote the gospel while living in Antioch, Syria after following Jesus between the years of A.D. 50-70. Matthews’s gospel provides an essential link between the Old and New Testament. Matthew 22:34-40 teaches us of the greatest commandment and what God wants from us foremost. In the scripture of Matthew 22:34-40 where this commandment is told by Jesus to the religious leaders, the Sadducees and the Pharisees who were attacking him and challenging him with one of the Pharisees in particular who was a lawyer decided to test Jesus in hopes of embarrassing him by asking: â€Å"Teacher, which is the greatest commandment in the law?† (NIV, Matthew 22:36) Knowing that this was a difficult question because of the Ten Commandments in the Old Testament in which all are from ... ...merciful, for they will be shown mercy" and "Blessed are the pure in heart: for they shall see God" (Holy Bible, Matthew 5:3-11). These scriptures say a lot to us reinstating what Matthew has written in how we should live our lives and follow the laws stated by Jesus in The Greatest Commandment so that we can obtain our peace of heart and give our love, ourselves selflessly to God. For when Jesus answered this question, the religious leaders and the Pharisees knew that he had answered well. After this question was answered Jesus also asked and answered a question about his son ship to God and from then on his answers showed his wisdom and those that questioned him never dared to ask Jesus any more questions. They knew that he was the son of the Lord. All knew and understood that these two Greatest Commandments were to be the law and the prophecies to live by.

Addressing International Legal and Ethical Issues Simulation Essay

1. Cad-Mex has a moral obligation to its publics to act as a responsible citizen. Corporate social responsibility demands that the company looks into the welfare of the communities in which it operates. At the same time the stakeholders of Cad-Mex demand that the company be managed prudently and generate a return on their investments. A price reduction in the face of an epidemic appears to be the best course of action that the company takes. By insisting that local companies can make generic versions of the drug, the government is in further breach of the contract signed by both parties. Suing the government for its actions may lead to expensive litigation costs and cancelling of the contract. Agreeing to work with the government under the new rules will endear the authorities to the company and improve chances of future business. In both cases the ethical issues weigh heavily in the decision making process as the company does not want to lose the investments already made and at the same time it wants to avoid further losses. See more: Defining research problem and setting objectives Essay 2. After agreeing to report for work on some Sundays during the year, one of the managers turned around and claimed that his faith could not allow him to. He insisted that he must attend church and was entitled to one day off per week. His decision was bound to cause dissension as other manages had sacrificed their Sundays to work for the company; most of them were also regular church goers. In trying to settle the matter amicably it is important the core values of the company should be observed. The company wants to be recognized as a fair employer that appreciates the vital role that cultural diversity plays in the workplace but at the same time needs employees to honor their agreements and give their best efforts to the successful implementation of the company’s goals. Teamwork is a crucial aspect in work situations and because one manager has reversed his decision to work without considering the backlash it may precipitate, it will be in the company’s best interests to relieve him of his duties. The raison d’Ã ªtre will be his failure to be part of the team and not his religious obligations to go to church.

Decreasing Racism in Canada - 989 Words

Do you think Canada is still racist country? In my opinion, I definitely support the fact that Canada is not a racist country anymore. It has changed significantly since its birth; it was once a child, however, it has now grown up and is a role model for other countries. Rewinding back to the early and mid 1900, Canada was known as a racist country; however after WWII, it started to reduce the racism, sexism, and hatred against non-white Races. Canada began to allow multi races such as Chinese, Japanese, and the Jewish to live in Canada, however, life was still difficult for the non- whites. The essay â€Å"Our Home and Racist Land† was written approximately 50 years ago and talks about facts that occurred 30 years before the essay was written.†¦show more content†¦He told me that Canada has changed â€Å"tremendously, it is now much cleverer, intelligent, and knows how to make a better decision.† I think my neighbor has succeeded and well fought racism, he ow ns a house and has a BMW now; this man is wealthy and a successful person now. A quote from the book that I found interesting was â€Å"Police relations are at all-time low† which was said by the narrator of the story. The narrator tries to tell that police officers back in the 80s were corrupted, in a way that they would be friendlier to whites then any other races. Fortunately, today the police and the law of Canada are tight and protected. The law is made for everyone in Canada which does not provide special benefits or disadvantages for a certain race. A fact is that Toronto is the most cosmopolitan city in the world. We have the most multicultural people living in Toronto. Canada accepts over 1 immigration applicants to come to Canada and start a completely new life. It does not set any restrictions against anyone who applies to come to Canada. Everyone in Canada has the right to follow their religion, what they want to wear, where they want to live, how they want to li ve, and follow their desired cultures. Ever since my family and I moved to Canada, we have not experienced any sort of racism. It has been seven years since I’ve moved to Canada and since then I have not been discriminated,Show MoreRelatedRacism: a World Problem1425 Words   |  6 PagesRacism: A World Problem In one way or another everyone encounters racism at many times in their life. Whether they are making the comments or victims of it, racism is everywhere and continues to be denied throughout the world. 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