The artist M.C. Escher Research Paper Example | Topics and Well Written Essays - 500 words

The artist M.C. Escher - Research Paper Example In some of his works, he created polytypes that cannot be constructed in real world and can be explained using mathematics knowledge. His study on mathematics began with George Polya’s academic paper about plane symmetry groups. What he studied inspired him to study the concept of 17 wallpapers (Math Explorer Club, 2009). By using this mathematical concept, he manage to create a periodic tilings made up of 43 colored drawings of different types of symmetry. This was the point where he started developing mathematical approach to expressions of symmetry shapes in his drawings. He was being viewed as a research mathematician during that time when he documented his findings in a book wrote about asymmetry polygons. He researched about color based division and he came up with a system of classifying combinations of shape, color and symmetrical properties (Math Explorer Club, 2009). He also developed several interlocking figures that appear to be mathematically incorrect. With the use of black and white color, he manages to develop different dimensions to make the impossible mathematics look possible. He normally combines 2 and 3 dimensional images to a single print. In his works entitled ‘reptiles’ he drew pictures where reptiles come out of tessellation, move around, and go back into 2 dimensional forms. To create certain linear perspectives, he picked a point on the drawings such that all the lines in the work will converge together at one point. In this way, he used mathematics to develop a certain perception from the audience, without using any special mathematic tool. Escher circle limit III contains tessellations that he drew with a free hand and they are mathematically correct (Abrams, 1995). In 1956, he analyzed the concept of representing infinity on 2 dimensional planes. His wood carvings circle limit I-IV shows the infinity concept. In 1959, he explained further about infinity using his construction (Abrams, 1995). The

New and Emerging Energy Supply Technologies Essay

New and Emerging Energy Supply Technologies - Essay Example According to Michael Pollan, we have to act now to arrest the present rate of our carbon emission before we face another kind of planet . The documentary of Nick Miller entitled â€Å"An Inconvenient Truth† articulated that global warming precipitated the climate change that have disastrous consequences have been proven to be right with series of climate disturbances that flooded cities and region beyond regions which never happened before . The growing need of energy also compels us to develop new supply energies that would lessen, if not totally depart our dependency towards fossil fuels whose stability of supply and price is subjected to a myriad of factors that ranges from the political factors to deliberate contraction of supply by the OPEC . These factors that caused disturbance in terms of supply and price are often beyond the control of dependent economies to fossil fuels yet they are affected by it due to the heavy dependency of its economy to oil. Exporting countries of oil may have nothing to do with the conflict in the Middle East yet they are still severely affected when the political instability in the region contracts the supply that would precipitate the spike on the price of oil that fuels our energy source. The spike in price of oil in turn reflects in every goods and services that we purchase due to our dependency to energy that make such goods and services to become available. Such, the development and creation of new energy supply source is not just a matter of technological musing but an imperative of conserving our already degraded environment and to ensure that there is a stable and sufficient supply of energy that is clean, cheap that could meet our energy demands. There are emerging technologies which are directed at producing energy source that intends to make energy supply cleaner and hopefully, cheaper with the ultimate objective of weaning away from the dependency to carbon based energy sources that cause excessive CO2 emiss ion. These emerging technologies ranges from making the existing energy source more efficient that would significantly reduce its CO2 emission to the point that it is already negligible such as carbon capturing sequestering4 to technologies that virtually emits no CO2 such as hydrogen fuel whose byproduct is only a vapor. The harnessing of nature to produce electricity such as the usage of Dinorwig's reversible pump/turbines also proves to a reliable source of energy5. The obstacles in making these emerging energy technologies viable on a mass scale will also be tackled including the ones that are already in used right now either as a pilot study or in experimental phase. One of the most popular emerging technology in supplying energy is the use of hydrogen fuels because of its clean emission. The technology is made possible by combining hydrogen and oxygen to form water where the chemical reaction during the process creates electrical energy. The technology that controls the combin ation of these two gases to produce the electrical energy are the fuel cells. This is envisioned to be used in fuel cell powered vehicles that will be virtually CO2 emission free because the only byproduct of the technology is water vapor6. While this technology can virtually wean our dependence on oil, the cost of the technology is just too prohibitive (its very expensive) and unreliable to make it available on a mass scale. Storing and transporting hydrogen can also be a challenge because it needs to be compressed to thousands of pounds per square inch (psi). At present, automative producers are using storages in

Understanding Rhetorical Structures as They Pertain to Audience Essay Example for Free

Understanding Rhetorical Structures as They Pertain to Audience Essay This paper is about the understanding of the Rhetorical Structures as they pertain to audience, purpose, and context and how they affect the argument of whether taxes should be raised on higher income brackets in order to fund social programs for at-risk and underserved, low income children. I will discuss the relationship between the audience, purpose, and context to the context of the argument. Understanding Rhetorical Structures How do audience, purpose, and context affect the argument of whether taxes should be raised on higher income brackets in order to fund social programs for at-risk and underserved, low income children. I will discuss the relationship between the audience, purpose, and context to the context of the argument. Discussion The goal of this discussion is to see the relationship between audience, purpose, and context of should Taxes be raised for higher income brackets in order to fund social programs for at-risk, underserved, and low income children. The first audience for this group are wealth fortune 500 CEO’s. They are considered the in the higher income bracket in my opinion. They need to be educated on the understanding that even though most lower income families struggle, it is not because they are not trying. The economy has taken its toll on a lot of jobs here in the US over the past couple of years and even though they are working a full time job and sometimes two full time jobs, they cannot afford any kind of social program for their children. The present economy conditions are hurting the lower income families to the point that they struggle to make ends meet and can sometimes barley afford to put food on the table for their children. The higher income bracket would need to see just how little the additional taxes would take from them and what the benefits of those taxes could do for a low income family struggling to make ends meet. They still could possibly not be receptive to the idea, but giving them examples of the cost and benefits of such programs I think they would start to understand. The second audience for this group is the low income families of at-risk, and underserved, low income children. They need to be educated on the benefits that could come from the higher taxes. In my opinion, the higher income bracket can afford the higher taxes to fund some of these programs. The cost of living, food, gas, and housing all affect the income of many families in the US. If they understood what could come from the taxes, they could get some reissuance as to vote on such a bill if it came up to vote for the public. Education on the subject of the current tax laws would be a good example of what the different taxes brackets that are used today in the US. Lower income families would jump on the idea of being able to send their children to a soccer camp, or baseball camp. According to an article on â€Å"Taxing the rich is good for the economy†, raising taxes on the higher income bracket would reduce the taxes on low and middle income families. This would also allow for those families to keep more of their income to use towards these programs. All in all I think it would be a beneficial idea to entertain. The context of the economy, food, and taxes all play an important role in this argument. The higher income bracket would be resistant to the idea until they were presented with facts on the cost and the minimal decrease in income for them. The lower income families would be blessed with some relief with their children’s social experience and the ability to provide more learning resources to them.

Removing Bubbles From Wallpaper

Removing Bubbles From Wallpaper The most important and the useful thing in decorating your house is the wallpaper. There are several wallpapers available in the market that you can apply on your own. However there are several problems that the person normally faces while applying wallpaper. The biggest problem is of the wallpaper bubble and so most of the people want to know the tips for getting a bubble out of the wallpaper. To begin with what are wallpaper bubbles? They are the bumps visible in the wallpapers surface that are caused because of the air pockets that are trapped between the wall as well as the paper. It is quite common to find such wallpaper bubbles in every wall even if the wallpapers are applied by the professionals. But that doesnt means that it is not at all possible to have the beautiful wallpaper on the wall without the wallpaper bubbles. There are several easy as well as simple DIY fixes that are best in providing you the wallpaper look smooth as well as totally free from the wallpaper bubbles. In addition there are several useful tips that are helpful in enabling one to apply wallpapers on the wall without any bubbles. Some of the tips that are considered very helpful for you to get out from the trouble of wallpaper bubble, if they have already arisen. They are as under: The first thing you can do with the air bubble is that you can cut the air bubble with the craft knife in the cross. Open the leaves from the cut put some adhesive and then again smoothen it back into the place. You can also use a pin in order to put the hole in the air bubble. After doing so you can put some of the adhesive over the hole and then leave it to dry for some days. It is also beneficial if you try pricking the hole with the help of syringe with a long needle. You can force the paste into the hole with the help of syringe and flatten it again. You can also try hard rollers on the surface. It is so because it helps in getting the bubble out of the wallpaper. All the above stated points will help you in getting a bubble out of wallpaper.

Privacy On The Internet Essay -- essays research papers

Privacy on the Internet   Ã‚  Ã‚  Ã‚  Ã‚  Ever feel like you are being watched? How about having the feeling like some one is following you home from school? Well that is what it will be like if users do not have the privacy on the Internet they deserve. EPIC (Electronic Privacy Information Center), a advocacy group that has been fighting the Clinton Administration for tougher online consumer protection laws, and other privacy protection agencies have formed to protect the rights and privileges of the Internet user. With the U.S. Government, EPIC has had to step in and help small companies and Internet users with their own privacy problems, hackers getting into their systems and ruining the networks, and crackers stealing and decrypting private information. They have also helped with trying to stop the “IPv6';, an every day occurring problem from eventually taking over the already used widely IP addressing system. Intel also has had a feud with the government about privacy issues. When their new chi p came out, the Pentium III it had skeptic problems with its serial number feature. That is why I strongly agree with EPIC and what they are representing, privacy on the Internet.   Ã‚  Ã‚  Ã‚  Ã‚  Say you were on the Internet surfing around, would you want every site that you have visited to know who you are and almost every thing about you? No. That is why Intel had to disable their serial number feature in the new Pentium III. With this feature, each site on the Internet that you have visited could use this number to look you up and see who you are and almost every thing about you. Before released Intel told the U.S. Senate that they had disabled this function on every chip, but when these chips where out on the market for a while, programming companies found a way to go back in and enable this function without the computer user knowing it. So when the Senate heard this, Intel had yet another feud with its little problem. When the dust all settled Intel was to put this now option into the BIOS of every computer that had the PIII (Pentium III) installed on them. When the user opened up the BIOS there was now an option to either enable or disable the serial number on the chip. But since not many people know how to get into the BIOS of a computer it is hard for this option to be accessed. And once again Intel was back in the c... ... There’s no doubt there are serious privacy concerns for Internet users, about  ¼ of them don’t understand what is going on or just plainly don’t care about the risks that are involved. And what the future will bring if we don’t get our act in control?   Ã‚  Ã‚  Ã‚  Ã‚  In conclusion, with our privacy at risk we the people need to become more aware of what is at stake. Our privacy on the Internet, or privacy in our lives. It is now the public’s turn to speak up. We need to make our voices heard on these big privacy issues so we don’t end up losing every thing that this country has worked so hard for. We need to stand up and help EPIC and other protection agencies to help them help us. Our privacy is at stake and we need to control it, because without our privacy who knows what might happen in the years to come. Maybe people listening in on your telephone conversations or cameras in your house to make sure you are not doing anything wrong. Stand up for what you believe and lets end this once and for all. Privacy is what every American needs and America needs privacy. Get in the act now, privacy on the Internet.

Afraid to know the truth Essay -- essays research papers fc

Afraid to Know the Truth   Ã‚  Ã‚  Ã‚  Ã‚   AIDS is an extraordinary kind of crisis that is both an emergency and a long-term development issue. Despite increased funding, political commitment and progress in expanding treatment, the AIDS epidemic continues to outpace the global response. No region of the world has been spared. The epidemic remains extremely dynamic, growing and changing in character as the virus exploits new opportunities for transmission. The UNAIDS/WHO global overview of the AIDS/HIV epidemic has reported in the year 2003, almost five million people became newly infected with HIV, the greatest number in any one year since the beginning of the epidemic. At the global level, the number of people living with HIV continues to grow. In the year 2001 the number increased from 35 million to 38 million in 2003. In the same year almost 3 million people have died of AIDS; over 20 million have died since the first cases of AIDS were identified in 1981 (5). According to the Center of Disease Control and Prevention estimate that 850,000 to 950,000 people are living with HIV/AIDS in the United States one quarter of which are unaware of their infection (par.6).Based on these statistics it is an obvious fact that this is a growing problem which continues to get worse year after year. The AIDS epidemic has been established as not only a national problem, but just as well as an international problem. In 2003, young people (15-24) accounted for nearly half of all new infections of HIV worldwide; more than 6,000 became infected everyday (par.3). I become very dismayed to find out that the majority of people that are infected with this terminal disease are at the ages where many at this age go out in the world to make a life for themselves. But, because of lack of responsible actions they must live with this disease for the remainder of their lives. Even though there are many types of treatment for those infected with this disease and with treat ment AIDS/HIV patients can live a lot longer than 20 years ago when the first cases of AIDS were identified, the fact still remains it is an incurable disease. The most vital factor that will have to come into play to make a significant difference in slowing down or possibly stopping this epidemic is prevention. But, despite the seriousness of this problem there are many factors that come into play that... ... the reality of the truth appropriately. A CDC( center of disease control and prevention) study interviewed 2370 HIV-negative or untested people, 25% of those who were tested and 23% of those who delayed testing said the fear of a positive result was the main reason why they delayed testing (par.2). The biggest step in stopping this epidemic before it continues to have an even bigger impact on the world is obviously prevention. People need to become more aware of the risks and must become more responsible in protecting themselves. A crucial factor that would help the prevention of this epidemic even more is getting tested. I must quote the infamous lines that are said in ‘getting tested’ commercials that are frequently aired on MTV and VH1, â€Å"Knowing is Beautiful†. WORKS CITED 1.) UNAIDS/WHO 2004 Global Report on AIDS epidemic   Ã‚  Ã‚  Ã‚  Ã‚  2.) Fleming, P.L. et al. HIV Prevalence in the United States, 2000. 9th Conference on Retroviruses and Opportunistic Infections, Seattle, Wash., Feb. 24-28, 2002. Abstract 11. 3.) http://www.amfar.org/cgi-bin/iowa/news/record.html?record=25 4.) www.forrealease.com 5.) http://www.critpath.org/wtp/fastfax/ff210.htm Afraid to know the truth Essay -- essays research papers fc Afraid to Know the Truth   Ã‚  Ã‚  Ã‚  Ã‚   AIDS is an extraordinary kind of crisis that is both an emergency and a long-term development issue. Despite increased funding, political commitment and progress in expanding treatment, the AIDS epidemic continues to outpace the global response. No region of the world has been spared. The epidemic remains extremely dynamic, growing and changing in character as the virus exploits new opportunities for transmission. The UNAIDS/WHO global overview of the AIDS/HIV epidemic has reported in the year 2003, almost five million people became newly infected with HIV, the greatest number in any one year since the beginning of the epidemic. At the global level, the number of people living with HIV continues to grow. In the year 2001 the number increased from 35 million to 38 million in 2003. In the same year almost 3 million people have died of AIDS; over 20 million have died since the first cases of AIDS were identified in 1981 (5). According to the Center of Disease Control and Prevention estimate that 850,000 to 950,000 people are living with HIV/AIDS in the United States one quarter of which are unaware of their infection (par.6).Based on these statistics it is an obvious fact that this is a growing problem which continues to get worse year after year. The AIDS epidemic has been established as not only a national problem, but just as well as an international problem. In 2003, young people (15-24) accounted for nearly half of all new infections of HIV worldwide; more than 6,000 became infected everyday (par.3). I become very dismayed to find out that the majority of people that are infected with this terminal disease are at the ages where many at this age go out in the world to make a life for themselves. But, because of lack of responsible actions they must live with this disease for the remainder of their lives. Even though there are many types of treatment for those infected with this disease and with treat ment AIDS/HIV patients can live a lot longer than 20 years ago when the first cases of AIDS were identified, the fact still remains it is an incurable disease. The most vital factor that will have to come into play to make a significant difference in slowing down or possibly stopping this epidemic is prevention. But, despite the seriousness of this problem there are many factors that come into play that... ... the reality of the truth appropriately. A CDC( center of disease control and prevention) study interviewed 2370 HIV-negative or untested people, 25% of those who were tested and 23% of those who delayed testing said the fear of a positive result was the main reason why they delayed testing (par.2). The biggest step in stopping this epidemic before it continues to have an even bigger impact on the world is obviously prevention. People need to become more aware of the risks and must become more responsible in protecting themselves. A crucial factor that would help the prevention of this epidemic even more is getting tested. I must quote the infamous lines that are said in ‘getting tested’ commercials that are frequently aired on MTV and VH1, â€Å"Knowing is Beautiful†. WORKS CITED 1.) UNAIDS/WHO 2004 Global Report on AIDS epidemic   Ã‚  Ã‚  Ã‚  Ã‚  2.) Fleming, P.L. et al. HIV Prevalence in the United States, 2000. 9th Conference on Retroviruses and Opportunistic Infections, Seattle, Wash., Feb. 24-28, 2002. Abstract 11. 3.) http://www.amfar.org/cgi-bin/iowa/news/record.html?record=25 4.) www.forrealease.com 5.) http://www.critpath.org/wtp/fastfax/ff210.htm

On Dumpster Diving Review

In the article â€Å"On Dumpster Diving†, Eighner states â€Å"After all, the finding of objects is becoming something of an urban art† (455). This shows Eighner is not embarrassed about this practice because it really is meaningful and helps him to survive. Although this art is view for so many people as disgusting, after reading this article and analyzing it, dumpster diving involve certain skills, knowledge and values that makes me think when using them, dumpster diving is a whole different thing than just a nasty practice. I can recall the times I threw good food, supplies and even clothes that I thought were not useful or simply I did not like anymore, and regret it because it makes me feel like the type of college students Eighner mentions in his writing. â€Å"To live in the streets I must anticipate my needs to a certain extent: I must pick up and save warm bedding I find in August because it will not be found in Dumpsters in November† (406). It is incredible how people like us with our hands full of privileges call some things garbage while for those that lack of them have to take advantage to sustain their lives in the present and the future. Now, I am certain that my trash will look different, or otherwise it will make me feel bad since I know someone else might want that piece of bread or need that pair of shoes. As I read over and over Eighner’s lines he looks wiser to me. He emphasizes the value of things and how anything becomes useful, or in other words sustainability â€Å"†¦ things of interest turn up every day and some days are finds of great value. I personally think the main point of this writing is to open people’s eyes and see how we do not appreciate anything around us, and not only the material stuff but also our environment and community. We do not take care of our natural resources and waste them as if they were infinite, we do the same with our things, we stereotype people without t hinking that every single person in different. And if all together put a little of interest and work toward our community, it would make sustainability easier.