Midnight rider. Environmental Science & Technology Essay Example for Free

Midnight rider. Environmental Science Technology Essay The Midnight Rider Introduction   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   This documentary series explores the life of Paul Revere who was an American patriot. He was born in Boston, Mass, and he was a superb silversmith and also an ardent patriot however he was a mediocre military leader. As a member of sons of liberty, Revere became the main express rider for Boston committee of safety (Peltier, 2005). His role was to carry information such as letters, news, copies of proposed resolutions and dispatches to the patriots who were dispersed all over New England and also as far as Philadelphia and New York (Pelley, 2009).   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Revere’s famous ride in 1775 to Lexington was only the most popular of the numerous courier services that he carried out. Later Revere was court-martialed and given an acquittal for his leadership for the period of failed 1779 Penebscot Bay expedition (Dorsey, 2007). Although was released his was not grated a similar treatment and therefore he was forced to walk on foot to Lexington and at Lexington Green he witnessed the late phases of the battle. Subsequent to the American Revolution, Revere carried on with great success his trade in silversmith (Sullivan, 2012). Revere supplied materials for constitution of U.S.S and also worked together with Robert Fulton during developing copper boilers for the steamboats (Keene, 2013).   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Americans in the 21st century have a lot in common with their patriotic forefathers even though they are separated from the midnight ride of Paul revere by 238 years (Countryman Foner, 1985). They are ready to fight for their sacred rights whenever they feel that they are being denied their rights. They are inspired by the Paul Revere’s ride since when they remember the reason for this ride they get inspired and are ready to face their own fight against the forces of tyranny (Dorsey, 2007). References Countryman, E., Foner, E. (1985). The American Revolution. New York: Hill and Wang. Dorsey, A. (2007). Black History Is American History: Teaching African American History in the Twenty-first Century. Journal of American History, 93(4), 1171-1177. Jensen, M. (1970). The American People and the American Revolution. The Journal of American History, 57(1), 5. Keene, C. (2013). Mystery of the midnight rider. New York: Aladdin. Peltier, M. J. (Director). (2005). Paul Revere, the midnight rider [Documentary]. united states: A E Home Video :. Pelley, J. (2009). Midnight rider. Environmental Science Technology, 43(6), 1661-1662. Rachum, I. (1993). From à ¢Ã¢â€š ¬Ã…“American Independenceà ¢Ã¢â€š ¬Ã‚  To The à ¢Ã¢â€š ¬Ã…“American Revolutionà ¢Ã¢â€š ¬Ã‚ . Journal of American Studies, 27(01), 73. Revere, P., Forbes, E. (1963). Paul Reveres ride; a deposition.. Worcester, Mass.: A.J. St. Onge. Ruepp, K., Heyne, U., James, J. A. (1995). Midnight rider. New York: North-South Books. Sullivan, R. (2012). My American Revolution. New York: Farrar, Straus and Giroux. Thelen, D. (1994). The Practice of American History. The Journal of American History, 81(3), 933. Source document

A Study On The Sky X Devices

A Study On The Sky X Devices In todays worlds Connectivity is the most important thing. No matter where ever we are we need to keep ourselves connected with the world to keep ourselves updated. The world around us is changing at a rapid pace so if we dont keep up with it we would be left behind. One of the prime way by which we do this is internet. But there are places where Internet is not available. There are few places where due to terrestrial location or other reasons the internet availability is not possible or its prohibited. In todays world we feel like sharing whatever we can on the network, we share a lot of data on the network. We keep uploading the Videos on Youtube. We keep on adding our photo on the networking websites. Day by day our need for the bandwidth is increasing as our need to share and upload the data keeps on increasing. Here comes an option for this also its the communication using the satellites. The Geo-stationary satellite orbiting at an altitude of 36,000 kms can be used for this. Satellites can be used to carry our data traffic and they could be used to communicate with each other. But the problem with it was that the prevalent TCP protocol at that time did not have enough of technology advances to overcome the disadvantages of satellite communication as compared to its advantages. So the SKY-x technology was introduced, it provided a secure and fast way to transfer data through satellite. It was totally transparent to the users. In place of tcp protocol it used a new XTP protocol (Xpress Transport Protocol) .This new Protocol is optimize for the data transfer over Satellite. Problem with TCP: The data transfer using satellite is facing various problems like large latency rate and high Bit error rate with the Asymmetric design of the bandwidth of all satellite. Satellite is one of the best options in the upcoming days to communicate and transfer data. But there did not exist proper standards or Protocol for the transfer of the data. The currently used TCP Protocol was not optimized for the transfer of data over Satellite, due to which the High bandwidth provided by the Satellite mostly goes unused. This also reduces the throughput of the satellite transmission. So we were not able to fully utilize the benefits provided by the Satellite transmission. Where as the Satellite transmission was more prone to bit error caused due to the environmental changes. The TCP Protocol was designed so that they can give high performance and large throughput over local area network.TCP protocol had various feature for LPV6 which were specialized for the Optical fiber network. So network setup of Optical cables and using the TCP protocol were far more reliable and cheaper than transmission using TCP protocol over satellite. All the benefits which are incurred over the cable network by TCP Protocol are lost on the satellite transmission. TCP had a congestion avoidance algorithm/mechanism which were not suited for satellite transmission because satellite transmission had a long round trip. This long round trip was misinterpreted by the TCP as congestion and hence it reduces the transmission rate. This resulted in the wastage of the bandwidth provided by the Satellite transmission. Hence the Congestion avoidance algorithm used by the TCP is also a big problem in the Satellite transmission. The WINDOW SIZE Problem: The TCP protocol utilizes a sliding window mechanism to limit the total amount of data to be transfer over the network. When the window become full, the sender stops sending the data anymore until it receives the acknowledgment signal from the recevier.As the back channel speed is less on satellite using tcp protocol its very difficult to transfer data on satellite, So to avoid this TCP statically fix the size of window to 100 kb over the T1 satellite, which limits the total amount of bandwidth which we can use as compared to total provided by the satellite. Moreover many of the operating system uses a window size of 8 Kb which only provides us with a speed of 128 kbps per connection, which is very less as compared to bandwidth available over satellite. Thus window sizing mechanics reduces the transfer of the data over the Satellite. While the SK-x technology dose not use a fix window size of 8 Kb it uses the performance enhanced size of the window thus allowing us to fully utilize the bandwidth provided by the Satellite for the data which can be compressed SKY-x technology provides a better throughput rate than the simple cable network. Thus the SKY-x technology is much better than the TCP Protocol for the transfer of data over the satellite. SKY- x Technology: The SKY-x technology was developed by one of the worlds leaders in TCP/IP Protocol developer Mentat.The SKY-x technology Products replace the TCP protocol product to transfer data over Satellite. These Products are transparent to Users they behave the same way as the TCP Protocol product and they provide more security and Less Latency time while giving high throughput over satellite. It consists of SKY-x Gateway, SKY-x Client/Server, SKY-x OEM Products. The SKY-x gateway works in the same way as the TCP Gateway except that the Sky-x gateway intercepts the TCP signal and helps to convert it to the SKY-x protocol so that it can be used to transfer over the satellite. The SKY-x client are the same except that they need to be installed on the pcs of the local user to help them to connect using satellite. The SKY-x technology Protocol replaces the TCP Protocol used on Optical Fiber for the use on the satellite. Adding the SKY-x products into the network helps the user to efficiently use the full bandwidth provided by the satellite. The SKY-x products enhances the performance of the network transparently with out needing to change any thing over the client side or the server side. The SKY-x product increases the overall performance by thrice, while increases the files transfer by 10 to 100 times over the satellite. This product are enhanced version of the otherwise known TCP Performance enhancing (TCPPEP) Or the Satellite spoofer. The XTP protocol used was developed by the XTP forum a non profit organization. The SKY-x products divide the normal TCP connection into three different components: 1. The connection between the TCP client and the SKY-x gateway on the remote side of the network. 2. The Connection between two SKY-x gateway involving XTP protocol for the transfer of the data over the Satellite. 3. The Connection between the SKY-x Gateway and the TCP server on the other side of the network. Unicast versus Multicast: The fiber optic network used the unicast data transfer to send the data to all the clients it used to send the same copy of data to all the clients which a bit time consuming and waste a lot of bandwidth of the network. While the Unicast was not good for the satellite network. But the only multicast protocol available was UDP based. This UDP based protocol did not involve any method to detect the error in data transfer and to check the re-transmission of the data over the network. It even does not provide any mechanism to re-sequences the data packets sent over the network. This problem was overcome by the SKY-x multicast. It provides a reliable and secure way to multicast the data over the satellite. It provides fast efficient, reliable multicast file transfer. Any data that is lost or corrupted during the transmission is re-transmitted, providing transfer reliability rendering the special FEC software as a unnecessary thing. The SKY-x multicast fan out is an important part of the SKY-x Gateway. It transparently converts the TCP unicast data to the SKY-x multicast data. The SKY-x gateway can transfer the file to every remote location with just one multicast. As the SKY-x multicast is transparent to the user any device can transfer the data using the Multicast no matter whatever operating system it has without needing any special software. Below is a graph showing comparison between Unicast traffic and Multicast traffic: As shown in the graph Unicast transmission increases the traffic of the network considerably, whereas using multicast for the same no of users the traffic is 18th of the Unicast transmission. Thus the SKY-x technology also reduces the traffic over the high bandwidth Satellite Network. Thus SKY-x technology has overcome each and every Limitation of the TCP protocol hence providing us with an efficient way to connect using the Satellite. SPEED TCP versus SKY-x: The new technology used in the Sky-x products increases the performance as well as the speed of the network. The SKY-x products use a Fast start feature which enables it to establish new connection at a very fast speed. The HTTP Benchmark by the WEB Stone shows that for an 8 Mbps line having 50 simultaneous connections using a SKY-x gateway has an average response time of 0.7 to 1.1 sec which is much lowered as compared to the 3 sec time on a network using TCP protocol. Increased Throughput: The Sky-x Technology provides a high bandwidth even at a high bit error rate. It does so by compressing the data transmitted over the network. For a 10 Mbps satellite the TCP protocol is able to provide a small bandwidth of 1.5 Mbps while at an error rate of 1* 10-5 its bandwidth drops to as low as 0.03 Mbps. While on the other hand even at the above mentioned error rate the SKY-x products maintains a bandwidth of 5.8 Mbps when the data is not compressible, if the data is compressible it maintains a bandwidth of 15.1 Mbps. THE SKY-x Architecture: The SKY-x products or network have a SKY-x Gateway installed into the system. This gateway provided by the SKY-x helps to make the network transparent to the user, it transparently intercepts the TCP protocol transmitted by the user and convert it into the XTP (Xpress Transport Protocol) which is optimized for the Satellite transmission. Then on the other side it converts back the XTP protocol into the TCP protocol for the Server. So the client and the Server side in the Network remain unaware to all this translation. It requires no special change to be made on the part of the client or the Server in the Network, so all the applications the Program which were used previously keeps functioning on this network also. The XTP protocol also supports the TCP congestion avoidance algorithm to keep the terrestrial network stable and protected. The two Sky-x Gateway pass the data between each other as if there doesnt exists any intermediate link between client and the server. XTP protocol also provides a functionality called as Web pre-fetching. The Web Pre-fetch is used to fetch all the embedded objects in a web page whenever a client sends a request for even a simple html page. Then these embedded objects are made visible to the client as and when it is requested by the client thus avoiding the fetch time required for fetching it from the satellite. Thus the XTP protocol not only provides the security stability on the satellite network but it also considerably increases the speed of data transfer by using the Web Pre-fetch. XTP also provides an Accelerator which helps in speeding up the network traffic. It accelerates the XML and HTTP sessions, database synchronization as well as the transfer of the file Large or small between the client and the Server. Thus it helps in providing a better response time and throughput of the network. It also helps in speeding up the Database backups. It minimizes the re-transmission of data required due to error in it or due to the loss of data. Thus it also helps in the use of Satellite as a communication medium. SKY-x Products: Mentat was the first company to build a product having the sky-x technology. Mentat is leader in developing the products based on the TCP/IP protocol. Renowned Companies like Apple, IBM, Motorola, and Sony depend on the TCP/IP network software provided by Mentat. It launched various product named Mentat SKY-x XR10 Gateway. Mentat SKY-x XH45 Gateway. Mentat SKY-x XH155 Gateway. These products built by Mentat had the in built Accelerator to speed up the network traffic. The XR10 is designed to be used for the satellite which provides a link of 10 Mbps. Or it could also be used in combination with the other Mentat products like the XH45 which supports higher bandwidth links. The XH45 is designed for the satellite providing the link of 45 Mbps or it can also be used as a hub in a network having XR10 products. In the Same way Mentat also provides the SKY-x servers as SS10 SS45. The SKY-x SS10 server is used in the network having 10 Mbps links. While the SKY-x SS45 server is used in the network having the 45 Mbps links. Packeteer Mobiliti Technology: Packeteer is the Global Leader in Wan Application Optimization. In Todays World the users should be able to work from wherever there business demands. On the other hand the Companies should also provide their workers with the facility like LAN no matter wherever they are or they would be at a risk to lose many chances to carry out their business successfully. Packeteer came forward with a solution to this by integrating the SKY-x technology into its Mobility software. So the user can access the LAN from the remote location using there Desktops and Laptops. This Mobiliti software supports TCP file transfer automatic backup. It caches or saves the recently used document on the client side so as that the user can access them whenever needed even if the server is not available. This software is available in various languages like German, French, Chinese and Japanese. It also automatically configures the my document folder also provides and option to choose the location to store the recently used file by the user. Conclusion: Thus the new SKY-x technology is better than the TCP Protocol for Satellite transmission. The Sky-x Technology provides a large bandwidth as well as a fast data transfer on the satellite network. It has removed all the limitations which existed in the use of TCP for satellite transmission. Thus the SKY-x technology has opened a new horizon in the way we used to communicate with each other. Now we can use the Satellite as the medium of communication and remain connected with each other even at the most remote places on the earth. And this new SKY-x Technology also comes as a savior to us for our daily increasing bandwidth requirements. It provides a large bandwidth to transfer data on the network. Thus now we can connect to more places and also share more Data on the network.

Capital Punishment Essay - Should the Death Penalty be Abolished?

Should the Death Penalty be Abolished? Everyone has different beliefs about the death penalty. Some people believe it is barbaric and inhumane to put someone to death who has been convicted, while others feel that the death penalty gives resolution to the victim's family and friends. The death penalty is used to punish criminals for the wrong they have done. However, I believe that killing a person to "punish" them is not enough. People cannot suffer and think about the anguish they have caused people if they are put to death. Keeping the criminals alive and doing manual labor for the rest of their lives, without parole, is a better method of punishment. The way the government is now, many criminals are sentenced to death and may remain on death row for many years. Our tax money is being used to keep these people alive while they are waiting to be put to death, and then more money comes out of our taxes to actually put them to death. In rare occasions, the government has accused the wrong person and the innocent person dies. The death penalty is irrevoca...

Pythagorean Philosophy and its influence on Musical :: essays research papers

Fundamentals of Musical Acoustics. New York: Dover Publications Ferrara, Lawrence (1991). Philosophy and the Analysis of Music. New York: Greenwood Press. Johnston, Ian (1989). Measured Tones. New York: IOP Publishing. Rowell, Lewis (1983). Thinking About Music. Amhurst: The University of Massachusetts Press. "Music is the harmonization of opposites, the unification of disparate things, and the conciliation of warring elements...Music is the basis of agreement among things in nature and of the best government in the universe. As a rule it assumes the guise of harmony in the universe, of lawful government in a state, and of a sensible way of life in the home. It brings together and unites." - The Pythagoreans Every school student will recognize his name as the originator of that theorem which offers many cheerful facts about the square on the hypotenuse. Many European philosophers will call him the father of philosophy. Many scientists will call him the father of science. To musicians, nonetheless, Pythagoras is the father of music. According to Johnston, it was a much told story that one day the young Pythagoras was passing a blacksmith’s shop and his ear was caught by the regular intervals of sounds from the anvil. When he discovered that the hammers were of different weights, it occured to him that the intervals might be related to those weights. Pythagoras was correct. Pythagorean philosophy maintained that all things are numbers. Based on the belief that numbers were the building blocks of everything, Pythagoras began linking numbers and music. Revolutionizing music, Pythagoras’ findings generated theorems and standards for musical scales, relationships, instruments, and creative formation. Musical scales became defined, and taught. Instrument makers began a precision approach to device construction. Composers developed new attitudes of composition that encompassed a foundation of numeric value in addition to melody. All three approaches were based on Pythagorean philosophy. Thus, Pythagoras’ relationship between numbers and music had a profound influence on future musical education, instrumentation, and composition. The intrinsic discovery made by Pythagoras was the potential order to the chaos of music. Pythagoras began subdividing different intervals and pitches into distinct notes. Mathematically he divided intervals into wholes, thirds, and halves. "Four distinct musical ratios were discovered: the tone, its fourth, its fifth, and its octave." (Johnston, 1989). From these ratios the Pythagorean scale was introduced. This scale revolutionized music. Pythagorean relationships of ratios held true for any initial pitch. This discovery, in turn, reformed musical education. "With the standardization of music, musical creativity could be recorded, taught, and reproduced." (Rowell, 1983). Modern day finger exercises, such as the Hanons, are neither based on melody or creativity. They are simply based on the Pythagorean scale, and are executed from various initial pitches. Creating a foundation for musical representation, works

Personal Narrative- My Love of Reading and Writing Essay -- Personal N

Personal Narrative- My Love of Reading and Writing Reading and writing has always played a vital part in my life. From toddler to adult, pre-elementary to college, I’ve managed to sharpen both skills to my liking. However, even though it significantly helped, schooling was not what influenced me to continue developing those skills into talent. Many different things shaped and influenced my learning, and now reading and writing have become the safety net of my life. I know that even if I have nothing else in the future, I’ll still have my talent and knowledge. To ensure my success, I hope to further develop those skills so that I may fulfill my wishes. I was always a creative child; it was something I just could not not be. Back then I didn’t know how to be ‘normal.’ While the other children wrote their essays about their mothers and pets or their best friends, I wrote about becoming birds or about ducks building robots. Truly. I suppose I could blame it on my parents – my father for trying to teach me how to read when I was too young and my mother for reading The Hobbit by JRR Tolkein to me as my bedtime story – but I know, truthfully, that it wasn’t their fault. It is no one’s fault, for I do not see my strange imagination as a terrible, abnormal thing. I do know that no one in particular influenced my creativity when I was younger, but I remember being obsessive about certain stories. I remember when I got my first computer – a 16-color piece of, well, garbage that barely ran. But even though it was so old and primitive, it opened new doors for my imagination, and I spe nt my childhood either playing games about knights and dragons or running around outside and acting out my own unscripted scenari... ...from high school with high hopes that college would add the finishing touches to my writing skills – I knew I still had flaws in my style, and I didn’t know how to fix them. And now here I am, aiming to become a successful novelist or screenwriter of some sort (as long as it allows my imagination to run wild). I suppose it’s a good thing that many things shaped my literacy skills. A dozen heads are better than one, after all (and to think out my ideas, sometimes I need those extra brains, but that’s what friends are for). I’m confident that I will succeed in the writing field, wherever it may be – literature, movies, gaming – and I’m forever thankful for my talents, for I know that so many others have not had the encouragement or will to read and write as I have. So, here’s to the future of my writing, and hopefully it will be just as creative as my past was.

Benefits of Sports Essay

It is widely accepted that sport is good for us. Sport is good to our body and mind, it help us to keep in shape, control the level of blood sugar and blood pressure, and it is very good way to cure depression. Sports can be divided into different categories. Game sports like Hockey, football, or basketball need a lot of running and throwing. They are good to some people but not everybody can take part in. Other sports like tennis, table tennis, and volley ball are milder and more enjoyable by the majority of people. Sports can be very dangerous if you are not careful. However, I will argue that moderate exercise is good for everyone. Jogging, walking, and aerobics are the kinds of exercise I enjoyed most. They are definitely good for my body. Moderate exercise is good for middle aged and elderly people. It helps them to lower the cholesterol level, blood sugar level and blood pressure level. Moderate exercise is good for maintaining their bone denseness. Exercise is good for our mind too. This is very beneficial when you suffer from depression. Another thing that can learn from sports is teamwork and how to work well with others. This happens when parents and coaches commend their young athletes for unselfish play and congratulate them on their team’s efforts as well as their own. One more thing that a child learns from sport is how to cope with difficulty. Children learn how to live with losing and the fact that there are not always going to get thing their way. They also learn how to turn these defeats into positive things, by learning from their mistakes.

John Locke Essay

The topic that I chose for my philosophy paper is empiricism. Empiricism is the theory that all knowledge is derived from sense-experience. This idea was developed from a famous English philosopher, John Locke, states that knowledge can only come from our sensory experience, nowhere else. Empiricists believe that getting knowledge without the experience is unachievable. There are three subcategories of Empiricism; Classical, Moderate, and Radical. Classical Empiricism completely rejects the thought of â€Å"in-born† knowledge. It states that at birth, we are born as a blank slate. Throughout the years, the more experience the more we learn. Radical empiricism is a dividend of the theory that concludes that knowledge comes from our senses. When we experience certain things, the sense that comes along with it is what gives us the knowledge that we take from it. Moderate empiricism is a more improved on and fits today’s philosophical and psychological findings. Moderate empiricism writes that not all knowledge should come from what you live through; some of it is simply learned. A valid example that they used to further prove their theory is the understanding of school subjects such as math or history. A person doesn’t have to live through anything to understand that a triangle has three sides or that George Washington became president in 1789. I interpret this theory the way it was written. I understand where john Locke’s idea of empiricism evolved from and there are many pieces of evidence to support it. I think what this theory states is that our experiences define us as humans. What we live through is what gives us the knowledge on either how to improve on it, to learn from it, or to continue doing it. In many ways, I believe that this is true in sculpting our personality. I think this theory goes in search of why people are so different, despite that they are taught the same material in school, and they answer that with the fact that every individual goes through incomparable experiences and that’s what makes us different and therefore gives us our knowledge. There are numerous examples of empiricism. Any experience in which a lesson is taken from is proof of empiricism. That may include a job experience in which the employee disappointed their manager and now knows to do everything he can to avoid doing what it is that he did. This goes along with Classical and Radical empiricism. The individual has learned something based solely on experience, but also through the sense of embarrassment and disappointment. A student who puts in a large amount of effort in his work and then receives praise on it from his teacher will want to go through that experience again and feel accomplishment. I feel very diverse about this theory. In many ways I do agree with it because our experiences are what give us our beliefs and set us as different individuals. However, the theory in ways contradicts itself because it underestimates the power of learning in class and knowing  not to do certain things even. An example that I have lived through that goes along with my opinion on this is my health class in the seventh grade where we were taught all the vital effects of drugs. Therefore, I have learned, but not through experience, not to do drugs. I did not have to go through addiction or even experimentation of illegal substances in order to get the knowledge not to do them. The theory that more closely relates to my belief is rationalism. Rationalism states that knowledge is based off of reason. Examples of that is mathematical problems,  knowing an illusion isn’t real and that your mind is actually being deceived, and why things happen the way they do. We don’t touch a pot of boiling water because we’ve done it before and experienced pain, we don’t touch it because we see the steam coming out of it and with that, we imply our reasoning that it would burn if we do touch it. There is also a flaw in empiricism. We all perceive things differently, and therefore our knowledge may be inaccurate. A student presenting might think he did awful and never volunteer again because his experience gave him the false knowledge that he wasn’t able to do good. Meanwhile, his fellow classmates might have thought greatly of his presentation. Empiricism can give off false knowledge of our experience, making us self-conscious, and even changing our personality completely, all because of how we perceived it. That is why I apply rationalism to my life and personality. I don’t have to experience something in order to gain knowledge from it. I am able to make decisions based off of reasoning, knowing the effect of an action without having to experience it, and knowing what is right without having to do what is wrong first.