American and Canadian Industry Today Research Paper

American and Canadian Industry Today - Research Paper Example While the recent economic recess across the globe affected the United States financial sector to a great extent and consequently, also affected the American industries, Canada on the other hand, has proved to be promising and capable enough to continue with its industrial progress. However, in the post economic recess era, while the US industries are showing the potential to retain their lost glory, collaboration and mutual support between both nations, in terms of resources and technologies have proved to be positive. The boon of globalization has provided both nations with scope to support each other so that the process of survival becomes easier in the highly competitive business scenario. While respective industrial prosperity of both Canada and US is dependent on export and import between these two nations, financial cooperation between United States and Canada has not shown much positivism since last few years. However, with the intention to make the situation better in terms of respective financial assistance in February 2010, Prime Minister of Canada Stifen Harper and President of the United States Barack Obama made cooperative deal which focused on exploring avenues of free trade among the two countries and for the public works the reciprocity in gove rnment procurement programs. It is quite clear from governmental policies of both these nations that they are providing a greater deal of importance over the aspect of mutual coexistence in terms of trade and financial assistance, compared to earlier times. It has been realized by either of the nations that the process of mutual cooperation is continued, it will be quite challenging for them to retain position of their industries in the highly competitive market. The United States of America is known as the high ranked nation is all the prospective. Who’s GDP is one of the highest among the developed nations ( $ 14.266 trillion

How Chrisianity religion in a way protecting world enivornment (how it Research Paper

How Chrisianity religion in a way protecting world enivornment (how it relate to ecology) - Research Paper Example spiritually and socially bound with God and with each other respectively in a culture where coexistence with nature or the rest of creation on Earth inevitably essential. This simultaneous connection with the environment and God, an entirely unseen supreme entity known to be the Creator and is above all creation, undoubtedly bore huge impact in the process of establishing human civilization. At the dawning of the environmental movement, optimistic attitude by people seemed sufficient in dealing with the issues of the environment so they initiated planting trees, tidying up waterways and various streams, setting up parks, and fixing highways for safety while maintaining some aesthetic value for men to utilize attraction as a means to draw mature concern for the ecosystem. Ideals and sentiments, however, have become affected by factors that are quite significant to industrial advancements and general modernization as well as consumerism which operate at the rate that may not be suppressed even if legislation by authority was imposed. Though scientific endeavor has been considered to remedy ecological problems, the latter’s condition continue to worsen instead. A collection of scientists from different nations with Nobel-acclaimed laureates necessitated a warning to humanity: â€Å"Human beings and the natural world are on a collision course. Human activities inflict harsh and often irreversible damage on the environment and on critical resources. If not checked, many of our current practices put at serious risk the future that we wish for human society – and may so alter the living world that it will be unable to sustain life in the manner that we know. Fundamental changes are urgent if we are to avoid the collision our present course will bring about.† Apparently, even with the collaboration of science, a lack of conviction for something higher than the prevailing cause and something of profound intrinsic value serves to make humanity realize that spiritual

Cardiac Involvement in melanoma Essay Example | Topics and Well Written Essays - 250 words

Cardiac Involvement in melanoma - Essay Example As it mainly affects the skin, it causes majority of skin cancer related deaths worldwide. At present, it is the sixth most common cancer in the United States, with the current lifetime risk for developing invasive melanoma is 1 case per 60 Americans, a 2000% increase since 1930. (Swetter, 2010). Cause of the disorder Melanoma is caused when the melanocytes are constantly exposed to sunlight, paving the way for Ultra-violet photons to strike the chromophore, a part of melanocyte. So, exposure to UV radiation clearly plays a role in melanoma. As people with history of sunburns, especially blistering sunburns during childhood or in teenage, are likely to show an augmented risk of developing melanoma. (aad.org). Another widely accepted caustic factor is genetics, with familial melanoma occurring mainly due to the chromosomes 1p, 9p and 12q. Having two or more close relatives who have had this disease is a risk factor. (medicinenet.com). Symptoms The symptoms of Melanoma, as mentioned ab ove, are any changes in the shape and color of the existing moles and also any new lump or lesions on the skin. The early symptoms of melanoma can be summarized by the mnemonic, â€Å"ABCD†. ‘A’ stands for Asymmetry and it means one half difference between the abnormal area and the other half.

The Reasons for Participating in the MMPA Program Essay

The Reasons for Participating in the MMPA Program - Essay Example The University of Toronto seeks a diverse and unique entering class of current and future managers. How will your distinctiveness enrich the learning environment and enhance your prospects for future success? In the midst of the overwhelming competition in the business world, it is becoming increasingly important to have a strong sense of maturity in the learning process. Having realized this, I have taken time to develop myself as an accounting student. My past learning experience during the undergraduate program in U of T’s Mississauga campus has enabled me to develop and nurture a mature student status. My maturity as a student and profound learning skills coupled with strong determination to succeed will be a strong boost to the learning environment in The University of Toronto. I will, therefore, use my learning experience, positive influence, and power to motivate others to nurture a learning environment amongst fellow students. If we are all united together as students towards a common objective of getting the best out of the program, then my chances of succeeding in the master’s program will be secured. More importantly, the favourable learning environment that will have been nurtured will be a good platform for me to maximally gain all the required skills for my future practice. What sets me apart from the rest is my resilience. Life experiences have taught me to be resilient even in distressing conditions. Actually, my resilience enabled me to go through the undergraduate program despite having accidents and fee problems.

Philosophy of Education for Foundations of Education Essay Example for Free

Philosophy of Education for Foundations of Education Essay Introduction Education is an ongoing process based upon experience. The old adage you learn something new everyday is very true, and nothing fascinates me more than simply talking to other people; you can learn so much from them. Education is the foundation of our American society, and the children of today are the future of our country, but educating them is not enough; we must be good role models and present a system of morals and values in our classrooms. Our objective in education is directly related to the social sciences in that the classroom is a microcosm of our society. As teachers we try to prepare our students for real-world situations. Interacting socially, communicating effectively and understanding other peoples emotions, feelings and points of view will help our students blossom into productive and understanding adults. Howard Gardner wrote about multiple intelligences, which I think is a huge step in improving the classroom environment and lesson plans to include ways that everyone can learn (Tomlinson, 2002). He identified eight different ways to be smart that traditional IQ tests would not show. This model allows students to excel in these categories through different types of instruction, such as verbal ability, referred to as the linguistic intelligence, or the ability to play an instrument, referred to as the musical intelligence (Johnson et al. , 2005). My classroom will be entertaining, first and foremost. I understand the material I am teaching elementary school children, but delivering that material effectively depends on how they feel about school. Motivating children and getting them excited about learning is not always easy, but it is a key ingredient to a successful classroom. As a male entering the elementary education field I understand my role as a possible father figure (Kindlon and Thompson, 1999) and recognize the importance. I want to make a difference in the world, and I see no better way than through the efforts of education. Definition of Philosophy From the perspective of a future educator, I see myself identifying with the qualities of existentialism the most. This theory can be hard to explain at times because it relies so heavily on the meaning we impose on our lives through education, an idea that cannot be expressed in a limited amount of words and one that differs from individual to individual. Existentialism is routed in the fact that our lives are meaningless; we live in a meaningless world and a meaningless period of time no different than any other. In essence, the quest to find meaning in our lives defines our life. A large part of this view is the idea that we are all free, an idea embraced in America but not typically recognized throughout the world or throughout history. Given this, our freedom allows us to make choices and these choices define us. The goal of the teacher through this philosophy is not to teach freedom, but to embrace it. Tracking, measurement and standardization homogenize the classroom, whereas our goal as teachers is to individualize the classroom and foster a healthy student-teacher relationship. The students feelings are important and we should not compare ourselves to an ideal self but who we actually are, and education is the tool that fills the gaps of understanding this. Because I have yet to become a teacher, I am not quite sure how and in what ways measurement and standardization negatively impact the classroom, but I am aware of the separation and animosity created my tracking. Getting the students to think positively about themselves will foster healthy learning and create a positive self-esteem that will drive them to learn both in the classroom and through questioning on their own. Sparking that fire is the idea behind existentialism, and in a world where we are essentially meaningless, it is up to us as teachers to inspire our students to grasp the freedom they have, bring meaning into their life, and use that excitement to find meaning in all that they do. Also, in sparking critical thinking, students will engage in a thoughtful and reflective process similar to Blooms taxonomy where a number of levels of learning are happening, dependent on how information in the classroom affects them and their existence as well as essence. Another important tool we can use to define our philosophy as a teacher is the Ways of Knowing. I feel like I identify most with the Eastern Way of Knowing, particularly the Chinese thought because of the emphasis on moral development. Understanding facts and theories is important in education, but sometimes it is hard to distinguish what is actually necessary from what is trivial. Preaching morals allows us to respect others, particularly elders, and gain from their knowledge, something that cannot always be taught in the classroom. Also, it will foster a more productive and peaceful society, one that is the best to learn in. Confucianism and Taoism play a large role in this type of knowing as well, and the reliance on harmony can be compared to the need for smooth transitions in the field of education. Although Confucius implemented the need for rules and standards, contradictory to my belief in existentialism, he has influenced society and education in particular for thousands of years. These rules help keep life orderly and efficient, and the success of Chinese government, business and family life can be attributed to this as well as the harmony between the three. Taoism affects the Chinese thought by suggesting that we should leave things alone and not force personal desires onto the way things will naturally occur. This eliminates the need for competition and is more consistent with the existentialist view. Competition can be good in many ways, but when comparing students we must be careful and considerate. There is no place in the classroom for making anyone feel inferior, and I feel more strongly about that than any other aspect of teaching right now. In relation to morals and respect, I will never allow a student to think they are better than any other student, and hopefully using this method will prepare them for life in the real world, where manners and morals can actually take you pretty far. Even if its not for achievement, preaching this will promote self-improvement and a genuine compassion for other students, which is what I strive for in the classroom. Based on the work of Jean-Jacques Rousseau, and rooted in existentialism, humanism is the educational approach that I fell closest too. Humanism makes the assumption that we are essentially born good and that children enter the world not as a blank slate, but with innate qualities and dispositions. Consistent and nearly identical to existentialism, humanism stresses the role of individualism in the classroom and says that society turns people evil. Group-oriented education is rejected because it weakens the student-teacher relationship, limits self-actualization (based on the students feelings), and measures students as objects, effectively doing away with the individual self. Teachers involving humanism in the classroom look for student interests as guidelines for instruction and assessment and even go as far as letting the students pick the material and activities. Students discover their own opinions through divergent thinking and should not be influenced by the teachers views. Eastern influences on Humanism are also prevalent, as people should be looked at as valuable individuals that deserve respect, not as objects to be manipulated, described by the I-Thou and I-It example, respectively. I am an optimist; the glass is always half full. Therefore, I strongly believe that people are created equally, good and free. Society can have a negative impact on individuals, but it can also have a positive impact. Our goal as teachers is to become that positive force and to let every student know that we care about them as individuals. The book cites how a college classroom can consist of more than one-hundred students, leaving know room for a personal relationship with the professor. One of the main reasons I came to W and J was for that small school feel where I could have a personal relationship with my professors: I feel like I do better in my classes and that I also learn more and feel more confident about my abilities. If we can achieve this goal, rather than making our students just a number, we will truly succeed as educators. References Johnson, J. A. , Musial, D. , Hall, G. E. , Gollnick, D. M. , Dupuis, V. L. (2005). Introduction to the foundations of American education (pp. 448). Boston: Allyn Bacon. Kindlon, D. , Thompson M. (1999). Raising Cain: Protecting the emotional life of boys (pp. 333). New York: Ballentine. Tomlinson, C. A. (2002). Different learners, different lessons. Scholastic Instructor, 9, 21, 24-26, 91.

The Role Of Intermediary Devices In Networks Information Technology Essay

The Role Of Intermediary Devices In Networks Information Technology Essay TCP/ IP model and OSI layers are the two network models used by the internet. In the OSI model, an Ethernet switch operates at the Data-Link layer to create a different collision domain for every single switch port. A multilayer switch though may work at more than one OSI layers, including physical, data link, network and even the transport layer. A router on the other hand is considered a layer 3- the Network layer of the TCP/IP model- device since it does most of its routing decisions according to information in the IP packet of layer 3. Role of Intermediary Devices in the network The switch, which is basically a modern and more efficient version of the outdated hub, is a network access device. The router is an internetworking device. They are both intermediary devices. The basic functionalities of the processes that run in them are to regenerate and re-transmit data, maintain information about the pathways that exist across the network and internet, inform other devices in case of errors and transmission failures, guide data along substitute pathways when there is a failure in the link, classify and direct messages according to Quality of Service (QoS) priorities and permit or deny data flow based on security settings. LANs AND WANs A Local Area Network (LAN) is a computer network which typically covers one geographical area, delivering services and applications to those within a mutual organizational structure. A switch is used to connect these computers. Switches lack the capability of connecting multiple networks or distributing an internet connection. A Wide Area Network (WAN) is a network of computers covering a broad area and is used in interconnecting two or multiple Local Area Networks. It is usually built using leased lines. A router connects two or more logical subnets and thus is usually connected to two or more LANs or WANs or also a LAN and its Internet Service Provider (ISP). Routers are also used to link segments of a LAN that has been sub-netted into smaller segments. Routers are located at gateways, the meeting point of two or more networks (Ilascu, 2007) Address Table Packet-switched computer networks employ a forwarding technique called bridging. Bridging is dependent on flooding and source address examination in received packet headers to establish the address location of unknown devices. Switches maintain a table of Ethernet MAC addresses referred to as a CAM Table also known as Bridge forwarding table using a method called Transparent Bridging involving learning, flooding, filtering, forwarding and aging. The switch records the source addresses in entries in the table, while destination addresses are looked up in the table and matched to the proper segment to send the frame. The show mac-address-table command can be used to show this table on a Cisco switch. Source route bridging is another form of bridging that was developed for token ring networks. Routers direct packets according to information stored in the IP routing table. A router looks inside each TCP/IP packet it has received to identify the IP addresses of the source and target, sear ches its own routing table for the best match between the destination IP address of the network and addresses in the routing table packet then forwards the packets as desired to ensure that data reaches its destination. The show ip route command can be used to show the table on a Cisco router. (Cisco, 2009) Security Switches and routers are often ignored as security devices because they were originally made to enhance network connectivity rather than network security. Consequently, they are conceptually less secure. An attack on the edge router can cut off the entire network from its users. Weak passwords, unneeded services, protocol and IOS vulnerabilities and IOS configuration errors can cause security breaches. Most routers nowadays have a hardware firewall integrated in their systems thus this has made routers an important component in fostering network security. There are several technical terms about switches and routers that one would encounter: Ports and interfaces A port is a point of physical access or physical interface between a circuit and a device or system at which signals are injected or extracted. It can also be a logical connection, identified by a protocol address in a packet header, associated with TCP or UDP service. The IP address and the port number identify a socket. An interface physically and logically interconnects two other devices or systems Broadcast, unicast and multicast Multicast is a transmission mode in which a signal or packet is sent to multiple devices or computers, but not all on a network, unicast is where a single packet or signal is sent to a single device and broadcast is where it is sent to all stations on a network in order to update the routing table. Gateway This is where one network meets another, for example where a LAN and a WAN are joined by a router. Protocols These are rules and conventions used to exchange information between computers or across computer internetworks. Their two major functions are handshaking and line discipline. Encapsulation and Decapsulation Different types of information are added as data from the Application layer passes down the protocol stack. A new header in each level and a new name is given to the data enclosed. Decapsulation is the reverse. As data goes up the protocol stack, the Data link layer takes it from the physical medium, does a Cyclic Redundancy Check, strips off the respective headers and the rest of the data is passed to an upper layer till it reaches the application layer. Packet switching LAN switches depend on packet-switching. A connection between two segments is established long enough to direct out the current packet. Inbound packets are stored in a temporary memory area, buffer; MAC address in the header is read and compared to those in the switchs lookup table.   An Ethernet frame comprises a normal packet as the payload of the frame, which has a special header including the MAC address information. Traffic-routing in a switch Three methods are used by packet-based switches for traffic-routing. As soon as the packet is detected by the switch, Cut-through switches read the MAC address. The 6 bytes that contain the address information are stored and instantly forwarding the packet to the destination node starts as the rest of the packet comes into the switch. In store-and-forward, the entire packet is saved by the switch, checked for CRC inaccuracies or any other problems before sending. The packet is discarded if it contains errors. The least common method is fragment-free. Its working is like that of cut-through but the first 64 bytes of the packet are stored before sending. This is because most errors and all collisions take place during the first 64 bytes of a packet. Switch configurations The physical design of LAN switches differ. Shared memory is one of the three common configurations in use. This brand of switch stores all entering packets in a common buffer memory shared by all switch ports (for input and output connections), subsequently sending them out through the correct port for the required destination node. In Matrix type of switch, there is an internal grid with input ports crossing output ports. Once a packet is identified on an input port, the MAC address is matched to the lookup table to get the suitable output port. A connection on the grid  where these two ports intersect is then made by the switch. The third is Bus architecture, where instead of a grid; an internal transmission  path (common bus) is shared by all ports using TDMA. There is a dedicated memory buffer for each port in a switch based on this configuration, with an ASIC to control the internal bus access. Router interfaces A router typically has multiple interfaces, as its main purpose is to interconnect several networks and send packets from one network to another. Every interface is a member or host belonging to a different IP network. The routing table comprises of network addresses for a routers own interfaces, which are directly connected networks, and remote networks. Though routers make their major forwarding decisions at the Network layer, router interfaces do this in Layers 1, 2, and 3. IP packets at layer 1 are encapsulated into data link frame at layer 2 and encoded into bits at physical Layer 1. Router interfaces participate in processes associated with their encapsulation at layer 2. A router Ethernet interface, for example, takes part in the ARP process like other same LAN hosts. Router interfaces may vary, but Serial and FastEthernet interfaces are common. Static and Dynamic Routes Static routes are easily and manually configured. However, in large networks the manual operation can be quite cumbersome. Static routes have a default administrative distance of 1. If theres not a more specific match in the routing table, the default route, 0.0.0.0 network address and 0.0.0.0 subnet mask, is used to forward the packet to another router. Dynamic routing protocols require less administrative overhead. They do discovery of remote networks, maintaining up-to-date routing information, choosing the best path to destination networks and have ability to find a new best path if the current is no longer available or if there is a topology change. Static routing is still used nowadays, more often than not, in combination with dynamic routing. Conclusion As introduction of more industrial devices which have built-in Ethernet capabilities continues, networks keep becoming more complex and get crowded with signal traffic. This increases the necessity for Ethernet switches and routers with advanced technology which limits collisions, control bandwidth and have ability to craft virtual local area networks. Companies like Cisco, HP and IBM are racing to produce devices based on the new Energy Efficient Ethernet Standard (IEEE 802.3az). The announcement of CGR 2010 and CGS 2520 router and switch products by Cisco Systems recently designed to aid utility companies in supplying power to homes and businesses under the Smart grid project, a conglomeration of existing and technologies under development, hoped to ameliorate aging US power grid in the near future. As internet speeds get faster, through copper and fiber, switches and routers must possess features of high capacity and expandability. HOW THE INTERNET WORKS (incl. IPv4 and IPv6) Internet protocol suite It refers to a model architecture which divides methods into one layered system of protocols commonly known as TCP/IP, the two most important protocols in it. It is composed of the Link layer, Internet, Transport and Application layers. The link layer provides basic connectivity between computer networking hardware and associated interface-interface messaging management. The Internet layer facilitates interconnectivity between networks and has the Internet Protocol defining IPv4 and IPv6 used to locate hosts on the network. Transport layer provides a framework to convey data between hosts with the help of protocols like TCP and UDP. Application layer deals with application-based interaction between communicating Internet hosts on a process-to-process level. The Domain Name System (DNS) This is the whole network of programs and databases that cooperate to translate hostnames to IP addresses. Internet hostnames are composed of parts separated by dots. A domain is a collection of machines that share a common name suffix. Domains can also live inside other domains. Each domain is defined by an authoritative name server that knows the IP addresses of the other machines in the domain. The primary name server may have backups in case it goes down. The name-servers do not have to know the locations of all the machines in other domains including their own sub-domains, just the location of name-servers. Each top-level domain server knows where the name-servers for the domains directly beneath it are. Classful and classless routing IPv4 addresses were initially allocated based on classes A, B, C, D. Classful routing utilizes routing protocols which do not send subnet mask information if there is a sent out route update . All network devices must use a similar subnet mask e.g. RIPv1. In classless routing, the network portion of the address is determined by the network subnet mask, also known as the network prefix, or prefix length In Classless routing, subnet mask information is sent out in the routing updates. It allows VLSM (Variable Length Subnet Masking) e.g. RIP V2 EIGRP OSPF. RIP V1 has no Support for VLSM and doesnt support discontigious networks. RIP v2, however, supports VLSM networks and discontigious networks through routers compliant with Classless-Inter Domain Routing, which reduce size of routing tables. Governance The internet is a globally distributed network made up of many voluntary interconnected autonomous networks. It runs without a central governing body. Nevertheless, to maintain interoperability, all technical and policy features of the underlying central infrastructure and the primary name spaces, that is, domain names, IP addresses, application port number and many other parameters are administered by a body called Internet Corporation for Assigned Names and Numbers (ICANN) in California. World Wide Web and the internet These two terms are often used daily without much distinction, yet have different meanings. The internet is made up of hardware and software infrastructure that ensure availability of connectivity between computers. The World Wide Web or just the web is one of the services transferred through the internet. It is a pool of interconnected documents and many other resources interconnected by hyperlinks and URLs. Technical terms related to the internet include: URLs It stands for Uniform Resource Locator and is used to uniquely identify each of the billions of web pages across the world and help one guide others to them. Internet Backbone The first high speed Tier 1 backbone was created by the NFS in 1987. Backbones are typically fiber optic trunk lines with multiple fiber optic cables to increase the capacity. Bandwidth This is the transmission capability of the lines that convey the Internets electronic traffic where a larger bandwidth transfers more data at a time. Lack of bandwidth can inflict severe restrictions on the quick information delivery by the internet. Peering This is where multiple ISPs are linked at peering points or Internet exchange points (IXs), permitting routing of data across each network, without transmission charges on one another for the data which would otherwise have gone through a third upstream ISP, attracting charges from the upstream ISP. Web hosting This is a form of internet hosting service that lets individuals and organizations make their own websites reachable through the World Wide Web. Web hosting companies offer space on a server they either own or have leased for use by their clients and furthermore provide internet connectivity usually in a data center. IPv4 The Internet Protocol enables internetworking and fundamentally creates the internet itself. IP Version 4 (IPv4) is the preliminary version on the initial generation of todays internet and is still dominantly in use. It was aimed to address up to 4.3 billion (109) internet hosts. IPv4 addresses were initially allocated based on classes. In the original specification of IPv4 (RFC 791) released in 1981, the authors established the classes to provide three different sizes of networks for large, medium and small organizations. As a result, class A, B and C addresses were defined with a specific format for the high order bits, which are the left-most bits in a 32-bit address. The remaining addresses were reserved for multicasting and future uses. However, IPv4 addresses are being exhausted due to the explosive growth of the internet, and the exhaustion is estimated to enter its final stage around 2011. (Microsoft Corporation, 2009) IPv6 The exhaustion led to development of IPv6 around mid-1990s, which provides massively larger addressing abilities and much more efficient routing of traffic. Presently, IPv6 is in commercial deployment phase across the world and internet address registries (RIRs) have started to urge all resource managers to organize rapid implementation and conversion. IPv6 is not interoperable with IPv4 as it basically creates a parallel form of the internet that IPv4 software cannot directly access. Software upgrades or translator facilities are thus essential for each networking device that requires communication on the IPV6 internet. While most recent computer operating systems have by now converted to function with both versions, network infrastructures still lag behind in this development. (Teare Diane, 2006) Client-Server Architecture A computer operates software known as the client and it interacts with another known as the server found at a remote computer. The client is typically a browser such as Mozilla Firefox or Internet Explorer. The server interacts with the browser using a set of guidelines called protocols. These protocols aid in the correct transfer of data via requests from a browser as the server responds. The World Wide Web brings the many protocols available on the Internet together so one can use HTTP, Telnet, FTP, Email etc. on one platform, the web browser. Inside the HTML page the web designer embeds the server-side language code. This code is handed to the suitable interpreter which processes these guidelines and generates the ultimate HTML displayed by the browser. Internet security Cryptographic methods and protocols that have been developed for securing communications on the Internet ensure cyber security. Protocols including SSL and TLS for web traffic, PGP for email, and IPsec for the network layer security have been developed to secure internet communications. Firewalls are used to control access between networks. They consist of gateways and filters which vary from one firewall to another and screen network traffic, blocking that which is dangerous or malicious. Antiviruses are used to protect networks and devices from computer viruses, malware, Trojan horses, spyware, worms and botnets. Conclusion Since its conception in 1969, internet has evolved more than anything else to react positively to new requirements. With faster speeds now, internet is used in banking, gaming, advertising, social networking like Facebook and almost everything else. Shaping the future of internet, CSS3, Fonts as a Service such as Typekit that cater to web browsers that support the font-face rule already, and HTML5 are providing web designers the creative liberty that they have been craving for a long time. Yet new ideas and technologies bring new challenges. Many feel a clean slate approach is the one sure way of correctly addressing security, mobility and further challenges that have arose since 1969. Researchers believe its time to reconsider the Internets underlying architecture, a change that might mean getting to replace networking equipment and modifying computer software to channel future traffic over the existing pipes better. Within a decade, the National Science Foundation (NSF) funded GENI and European Union backed Future Internet Research and Experimentation (FIRE) research programs would be making a considerable change of the internet. (JESDANUN, 2007)

The Physics of Swinging :: Physics Swinging Essays

The Physics of Swinging My son begs to watch me swing on one of the swing sets at the park. I tell him that there is so much work involved and I don’t know if I have the energy to do all of the many things it takes to make a swing move. It’s such an innocent plea, but complicated in the terms of the actual process of it. The physics of swinging has so many components. From resonance to force, and from the period of the swing to the conversion of energy, the process of swinging is actually a complicated matter. While you watch a person swing, place your hand at the maximum point of the swing’s achieved height and then count how many seconds it takes to return back to that same height. You have just measured the period of the swing. The period of the swing is the time it takes the swing to make one full move back and forth. The equation used to solve for the period mathematically is T = 2p (square root of L/g), where L is the length of the pendulum, and g is gravity. There are a few things that can change the period of a pendulum. As length increases and as the force of gravity increases so will the period. Likewise, when both gravity and length of the chains decrease, the period does also. My reference Mark Nethercott says that if there are no outside influences, the period stays constant at about 15 degrees of arch, but the amplitude must be low. This statement corresponds with Newton’s first law of motion (law of inertia) that says, â€Å"Every object remains at rest or in motion in a straight line at constant speed unless acted on by an unbalanced force.† (Physics, A World View p.31). A force other than gravity and the length of the swing can alter the outcome of a period. While standing with your hand out, measuring the period, give the person on the swing a push. â€Å"Periodic motion is motion that repeats itself at regular intervals of time and resonance is periodic increases of the amplitude of periodic motion due to a force at a constant interval. So while you push the person on the swing, you are creating a form of resonance for the swing.† –Mark Nethercott. There is one last force that changes the period of a swing, and that is squatting and standing, or leaning back and forth.