Understanding Oxidation

Oxidation is a phenomenon that occurs in everyday life. You would notice that a freshly cut apple would turn brown when it is exposed to the air. When oxidation occurs that element will eventually lose electrons while interacting with another element. Another example of this that we regularly see in daily life is the formation of rust on iron.

Effects of Oxidation

When exposed to air, iron forms a flaky reddish outer layer, which we call rust. Rust is the result of this natural process and leads to corrosion. Like the formation of rust on iron, copper will also oxidize as it reacts with oxygen. What forms is copper oxide, which is greenish in color. This green layer forming on top when it oxidizes is known as patina. However, unlike iron, this element does not react with water when exposed to it. Iron on the other hand is sure to form rust when exposed to water.

Another big difference and diametric opposite is that where rust corrodes patina protects. This is also yet another reason why copper is such a valued metal since it is corrosion resistant. Underneath the oxidized layer, patina averts any further corrosion. This is also used as a waterproofing layer on the roofs of old buildings.

An example of oxidation is the one that you will see on the Statue of Liberty. The copper in it has a green colored protective layer, which is only about 0.005 inch thick. This protective layer of patina protects Lady Liberty from being exposed to air and water. Oxygen and water is prevented from reacting through this layer of patina.

Heat Transfer

Heat can still be transferred even if patina forms after this element has oxidized. The idea for this process is pretty much the same as with a convection oven. Oxidized copper is still pretty malleable in spite of the layer of patina on the surface. Since that layer is very thin, it has no effect on this element’s ability to radiate heat. However, take note that you may still see some varying results depending on what method you use to transfer heat.

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Mapping the Human Gene

The project was started in 1990. It was initially an American undertaking but soon there were contributions from all over the world. Its primary objective was to determine the DNA sequence in the body.

Another one of its goals was to analyze and map the 25,000 genes in the body. The project was completed ahead of schedule. The only thing that remains now is to analyze the data. This however, can take years to finish.

The goals of the Human Genome Project can be divided into various categories. They are given below. The benefits from the project run the gamut from medicine to forensics.

Medicine

Probably the biggest benefit will be in health. With the gene mapping completed, it’s easier to identify genes associated with diseases. The information gathered from genes can lead to development of needed medication. There is also the strong possibility of identifying the weak genes and replacing them.

Eliminate Environmental Problems

The technology arising from the project can also help the environment. The area of microbial genomics can lead to the development of new energy sources. As one of the goals of the Human Genome Project, it can reduce pollution. Already there is a lot of headway being made when it comes to making pollution detection tools.

By analyzing the genetic sequence of bacteria, ways and means of managing them can be developed. It gives scientists the chance to learn how it causes disease and how to fight it. Gaining deeper knowledge of microbes will also help in managing the environment.

Reducing Health Risks for People

The project can also limit the potential for health risks. A lot of diseases are caused by exposure to pollution and radiation. One of the goals of the Human Genome Project is reduce or eliminate this aspect. Related to this field of study are inherited diseases. By evaluating the genes, it may become possible to keep the ailments from being passed on.

Shedding Light on the Past

By evaluating the genes, more information about human evolution becomes possible. The genes in the body are subject to slight variations and mutations. This information will help scientists discover the physiological makeup of various races. It will also help establish the links between humans and other species in the animal kingdom.

Forensics

Already, DNA is proving invaluable in solving crimes. But it can also be used to settle paternity cases and identify microorganisms that affect livestock. DNA and gene information can make it easier to identify and protect endangered animals.

Agriculture

Crops can be modified to make them more resistant to pestilence. It can also lead to the production of more nutritious food. It can also reduce the need to use pesticides and other chemicals.

The goals of the Human Genome Project encompass virtually all of human existence. There is no question it will take years before they are attained. But the first steps have been taken.

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Work is Easier to Find

Most, if not all of the companies you will apply for, will require you to submit a résumé. This will contain your work / school information. This is the only way that the company will be able to gauge your competence. Simply put, a law firm won’t hire you if you can’t show proof you graduated and passed the bar. The same can be said for other professions like doctors and engineers.

At the same time, being learned means knowing how to adapt. You will also be able to assimilate and understand the tasks assigned to you better. That is another reason why education is important. It gives you the confidence to face the challenges set before you.

Chances of Financial Success Are Higher

In line with finding work much more easily, being knowledgeable makes it simpler to manage your own finances. This will ensure financial security in the future.

This is of course very applicable to those who run businesses. Through constant and diligent studying, you will be able to attain success in your chosen business venture. As an employee, you can perform tasks more efficiently. This leads to an increased production and potential promotion.

Of course, even the best can be affected by an economic crisis or unexpected event. This is exactly why education is important. Instead of reacting emotionally, you will be able to analyze the situation objectively. You will be able to make decisions with the long term in mind.

Earn Respect

Learning isn’t just limited to facts and figures. It is also about how you interact with people. Your manners and behavior can make as big a difference as your ability to crunch numbers and recite facts. Those who spend time learning good habits and manners are better communicators. It also gives them confidence to speak with people. A person with good breeding is more likely to get a warmer reception in the workplace.

Always Trying to Improve

Those who know why education is important recognize one fact: learning doesn’t end in the classroom. It never ends. Study the life of any successful individual and you will see the same thing. They are able to thrive because they never stop studying. The most successful CEOs never rest on their laurels. They are always doing research on the latest trends. Knowledgeable people are aware that there is always more to learn.

A Happier Life

Knowledge brings forth opportunity. You will be able to see potential for growth and prosperity when others see only despair. Of course, it isn’t just about financial success. A learned person knows the importance of balancing health, family and work.

To sum it up, the reason why education is important is that your future depends on it. It makes all the difference in the world.

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To obtain an MBA, you will first need a Bachelor of Arts degree from an accredited college or university. In addition, you may be required to pass the GMAT (general management admissions test) or GRE (graduate record examination) with satisfactory scores in order to qualify for acceptance. There are many schools to choose from to complete your MBA, and the program can usually be completed in 24 months in a traditional program or 18 months in an accelerated program. During the course of study, you will be required to take general knowledge courses such as economics, accounting, business law, ethics, management, marketing and finance. When your general courses are complete, you will embark on a study in your specialty area.

With the easy access of Internet learning, many students are earning their MBA degree online (more info here). There are many great accredited online universities available. In addition, many brick and mortar schools offer online degree programs in addition to their in-class curriculum. The tuition for this degree varies by school, with public universities offering lower tuition rates than private colleges and universities. The top schools for business are the Ivy League universities such as Columbia, Harvard, Yale and Princeton. All of these schools offer comprehensive MBA programs of study that will propel you toward a successful career in business.

In addition to studying in the degree program, many students learn hands-on in an internship. These students work for Fortune 500 companies, small businesses and independent firms, learning the world of business firsthand. In exchange they receive valuable experience, knowledge and college credits that can be used toward the completion of their degree. Completing an internship is a great way to get your foot in the door in the world of business.

If you are a looking to study toward an MBA degree, you will be in good company. Many students around the country and around the world are digging into the world of business, finding lucrative opportunities at every turn. Get started today on your path toward business success with an MBA today.

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Impact on the Lifestyle of People and Energy Consumption in the State of Arizona

Why does not Arizona observe daylight savings time? The state does not practice daylight savings time because the temperature in the area is hotter than in the other parts of the country. According to reports, many people living in Arizona do not agree the practice to be implemented in the area because it will affect their leisure activities. For instance, there are activities that they cannot do like night entertainment and softball. In addition to this, daylight savings time is not implemented in the state because it can only increase electricity consumption. When they extend the day, it only shows that the time that business establishments and homes use air conditioning and other cooling appliances will be extended.

However, other areas in the state also practice the daylight savings time. One of these is the Navajo Indian Reservation. The reason behind the implementation of this practice is that the reservation occupies some territories in other states that implement the practice like Colorado, New Mexico and Utah.

Other Relevant Information About the Daylight Savings Time

There are various reasons why legislation regarding the practice of the daylight savings time was approved in the U.S. The primary reason is that it is important to save energy consumption in the area. The idea behind the development of this legislation is to save electricity that will be used when homeowners turn their lights at night. It was first approved by the Congress in 1918 during World War I to conserve fuel and energy consumption.

The legislation was dropped after the war but it was reintroduced during World War II. In 1944, the Congress signed legislation saying that the implementation of daylight savings time is up to local governments. This is the reason why some U.S. states including Arizona do not implement the practice.

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The Significance of Nanotech

Why is nanotechnology important? There are numerous reasons why this field of study is significant. One of the reasons is that it contributes greatly to the development of modern and advance equipment that are used in the healthcare industry. Numerous studies were conducted to assess the possible effects of the use of nanomaterials in vaccine formation, skin care and wound regeneration. Aside from these, scientists and medical experts also do different research on the application of nanomaterials in epidermic as well as pulmonary systems.

Nanotechnology is very essential to the potential invention of medical nanorobots. Studies about nanorobots showed that these are smaller than cell. Nanorobots have the capabilities to clean the arteries and remove harmful bacteria from the human body. With the development of nanotech, medical experts can easily assess the cause of heart attack by simply checking the blood proteins of a patient.

The Regulation of the Study

Present understanding and knowledge of this specific field of study is still limited, which is the reason why governmental institutions proposed regulations about the use of nanomaterials. Studies conducted about nanotechnology about security risks are insufficient to prove that nanomaterials cannot threaten the existence and survival of humans. Because of this, some countries implement laws and policies about the proper disposal of nanomaterials.

Some medical experts and physicians support the proposal of powerful political leaders that nanomaterials should not be exposed to humans as well as to the environment. In this regard, companies and institutions that support the use of these materials should develop effective and safe methods of disposing, destructing and recycling the materials. Governmental institutions in various countries propose that these companies conduct further researches about the harmful effects of nanotechnology on the environment and on the humanity as a whole.

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One of the common practices in Sweden, Denmark and the U.S. at the first day of school is giving apples to teachers. This tradition is practiced to appreciate the efforts of teachers in educating children and young people. To know why people associate apples with teachers, it is important to know the history of the tradition. In addition, it is also necessary to know what apples symbolize.

Apples and Teachers

Why are apples associated with teachers? People commonly see the fruit as a symbol of variety, change and growth. It symbolizes change and variety because it comes in different colors such as green yellow and red. Additionally, the fruit has various tastes like sweet, sour as well as tangy. Moreover, apple symbolizes growth since the strongest branch and grove of the plant sprout from the seeds of the fruit. However, people should know that without love or support, the fruit could become undesirable and bitter.

Educators serve as inspirations to students who want to enhance their understanding on different fields of studies. Teachers play important roles to the emotional, mental as well as physical growth of students. If educators do not receive support from other people like the parents of students and school administrators, there is a big chance that they will be unable to offer guidance to young people and children.

The Tradition of Giving Apples to Students

Why are apples associated with teachers? Another reason why people associate apples with teachers is the tradition from the 16th century until 18th century in various countries including Denmark and America, in which parents pay educators with foods like fruits. During this time, teachers do not receive enough salary to sustain the cost of living in their places. To help them with their basic needs, parents give the teachers of their children potatoes and apples. During these centuries, apples are considered special and expensive because these fruits are difficult to plant, cultivate and harvest. To compensate the efforts of educators and to make them feel special, parents pay them with different varieties of the fruit.

Teachers and the Bible

Some people associate apples with teachers because of the special story in the Bible, which says that Eve ate the fruit from the Tree of Knowledge. Even if apple is not stated or mentioned in the first book of the Old Testament, there are people who still believe that apple is the fruit of the Tree of Knowledge. Since teachers offer knowledge to students, individuals associate apple with them.

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Most people are aware of their sun sign (Leo, Virgo etc) but there are actually still questions regarding the origin and history of astrology. These are just some of the prevailing hypotheses about the subject.

Origin

It’s very difficult to give exact dates as to when the practice began. It’s a fact that early civilizations paid very close attention to the stars and their movements.

Primitive man was heavily dependent on agriculture for his food. Given this fact, he learned the value of observing the occurrences of the seasons, rain, sunshine and other heavenly influences. As time went by, man became convinced that the stars and planets played a role not just in his livelihood but in his character and personality too.

The Earliest Practitioners

The history of astrology probably started as far back as 3,000 BC in Mesopotamia. However the available records so far point to the Chaldeans and Babylonians as the earliest in the West (1,000 BC). In India and China, different systems emerged.

It’s not known exactly when the Zodiac signs emerged. One theory is that they were developed over time in Babylon. As the practice became more popular, the Zodiac symbols came into use to help in the interpretation of the facts. It’s been suggested that the other basic elements were also formed there. Whatever the case may be, it became very popular even in Egypt.

During the Medieval Age

The practice would survive the demise of the Greek and Roman Empires. Even when Christianity arose, it was able to survive and thrive. Part of the reason was that the history of astrology became intertwined with the Kabbala and Christian mysticism. As such, the Church authorities came to recognize its divine origin and meaning.

It wasn’t just the Church that relied on astrologers. Virtually all the royal courts employed one. These individuals became highly sought after. They were consulted for the proper times to go to war, making important decisions and taking note of heavenly portents. They were also in the business of fortune telling. Even during the Age of Enlightenment, its popularity never wavered.

The 20th Century

The belief was taken by the Europeans to America. From the 1900s up to the 1950s the demand for its services soared. Professional astrologers became numerous.

The history of astrology changed in the 1940s. That was when the first wave of magazines, newspapers and books started coming out. While the newspaper horoscopes added to its popularity, the knowledge of some people became limited to it.

Astrologers were also relied upon by celebrities and movie stars. This helped boost its popularity even more. The rise of the Internet in the 1990s also helped. People could have their charts read online. Software allows laymen to make calculations on their own with ease.

The growth of the Internet has also sparked interest in the Chinese and Vedic (Hindu) variants. All of these contribute to its ongoing popularity.

The history of astrology has shown its ability to withstand criticism. Even though there are questions about its legitimacy, it’s still being believed and relied upon by millions around the world.

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To Appreciate Nature

If you don’t know anything about animals or biology, nature seems to be just about chaos. Everything seems to happen at random. But once you study the life cycles and food chain, you’ll have a better understanding of nature’s handiworks.

When you look at the subject, you learn why animals behave this way or that way. It makes one admire nature even more. The reason why zoology is important is that it gives you the opportunity to see nature for what it really is. Not random chaos, but various life forms that interact with one another in amazing ways.

To Understand Animals

Studying the subject allows you to learn more about animal behavior. For example, tigers and sharks are usually thought to be mindless killers. But if you consider their nature and habitats, it will be clear that they become threats only when people interfere with their activities.

Studying the matter will also dispel a lot of myths. Some still believe that killer whales attack people when in fact they are peace loving creatures. The notion that all snakes are poisonous is still widespread.

So one of the reasons why zoology is important is that it increases knowledge and removes ignorance. When we are ignorant about something, it creates fear and uncertainty. With knowledge, we are able to act more responsibly. This also leads to a better relationship with the animal kingdom.

To Understand the Importance of Preservation

Learning facts and figures about animals isn’t just about storing the data in your head. It also makes you realize why preserving and balancing nature is critical to human survival. When you study animal life you learn of their habits, food and behavior. You’ll see that they are all integrated.

When one species is eliminated, others are affected. Hence it becomes clear why preserving these animals and their habitat is crucial. To explain why zoology is important, it just needs to be pointed out that it leads to greater understanding of nature.

To Know Man’s Role in Nature

There’s nothing wrong with economic progress. But it shouldn’t come at the cost of destroying rainforests or wiping out entire species. When we harm nature, the retribution will be swift.

Cut off trees and destroy forest wildlife, and floods will take place. Drive animals from their homes and they will become a pestilence. When natural disasters strike, material properties are destroyed. The things for which animals are killed for are obliterated.

In short, more problems are created. It is only when you comprehend the facts about animals will this problem and others like it become evident.

You don’t need to be adept at it, but knowing why zoology is important will serve everyone in good stead. By learning about the subject, it becomes clear why balancing economic growth with natural preservation is critical.

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You might have seen it happen many times and ask why pennies turn brown. There are those that guess that pennies get rusty and thus producing the brownish color. That wild guess might not be too far off. In fact the formation of rust on iron is quite related to why pennies turn brown.

Properties of Copper

Pennies are made of a copper alloy. This might bring up a side question of why choose copper when minting pennies. The answer relies on the very properties of copper and why is it a wise choice when minting coins. Understanding the properties of copper will also explain why pennies turn brown.

Looking Into Copper Oxidation

It is common knowledge to us that iron rusts when you expose it to air or water, which is a process known as oxidation. Oxidation, in layman’s terms, is the process whereby oxygen is added to a compound. It usually occurs with a loss of electrons and reduction. This same process also occurs with a lot of ordinary things like rust forming on iron.

When iron oxidizes, rust forms and corrodes the iron. When you cut an apple in half and expose its insides to air, you will notice that parts of the inside will turn brown. All these phenomena are simply the results of oxidation. This is also the same explanation why pennies turn brown in the long run. However, the oxidation process for pennies will be a lot different than the oxidation you’ll observe on apples or iron.

A Non-Corrosive Oxidation

The primary difference of pennies, which are made of copper alloy, from iron is that you won’t see your pennies corrode. Copper does not generate any tarnish nor does it emit something. Oxidized copper will turn green in color and form patina. Patina is a coating of different compounds that serve as a protection to copper rather than corrode the metal.

Why Pennies Turn Brown and Not Green

All this discussion on copper oxidation and the formation of patina on copper still doesn’t bring to light why pennies turn brown, since patina is green. The brown tarnish on pennies is a combination of oxidation of copper and copper’s inherent characteristic of attracting minerals.

In the simple terms, aside from oxidizing copper attracts minerals from the dirt and everything around it. This happens when people handle the coins. In the long run, copper alloy pennies turn brown eventually through this process. Because of the properties of this metal, copper pennies change to a brownish color over time.

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