The Invention and Evolution of the Telephone

The Invention and Evolution of the Telephone In the 1870s, Elisha Gray and Alexander Graham Bell independently designed devices that could transmit speech electrically. Both men rushed their respective designs for these prototype telephones to the patent office within hours of each other. Bell patented his telephone first and later emerged the victor in a legal dispute with Gray. Today, Bells name is synonymous with the telephone, while Gray is largely forgotten. But the story of who invented the telephone goes beyond these two men.   Bells Biography Alexander Graham Bell was born on March 3, 1847, in Edinburgh, Scotland. He was immersed in the study of sound from the beginning. His father, uncle, and grandfather were authorities on elocution and speech therapy for the deaf. It was understood that Bell would follow in the family footsteps after finishing college. However, after Bells two other brothers died of tuberculosis, Bell and his parents decided to immigrate to Canada in 1870. After a brief period living in Ontario, the Bells moved to Boston, where they established speech-therapy practices specializing in teaching deaf children to speak. One of Alexander Graham Bells pupils was a young Helen Keller, who when they met was not only blind and deaf but also unable to speak. Although working with the deaf would remain Bells principal source of income, he continued to pursue his own studies of sound on the side. Bells unceasing scientific curiosity led to the  invention of the photophone, to significant commercial improvements in Thomas Edisons phonograph, and to development of his own flying machine just six years after the Wright Brothers launched their plane at Kitty Hawk. As President James Garfield lay dying of an assassins bullet in 1881, Bell hurriedly invented a metal detector in an unsuccessful attempt to locate the fatal slug. From Telegraph to Telephone The telegraph and telephone are both wire-based electrical systems, and Alexander Graham Bells success with the telephone came as a direct result of his attempts to improve the telegraph. When he began experimenting with electrical signals, the telegraph had been an established means of communication for some 30 years. Although a highly successful system, the telegraph was basically limited to receiving and sending one message at a time. Bells extensive knowledge of the nature of sound and his understanding of music enabled him to conjecture the possibility of transmitting multiple messages over the same wire at the same time. Although the idea of a multiple telegraph had been in existence for some time, no one had been able to fabricate one- until Bell. His harmonic telegraph was based on the principle that several notes could be sent simultaneously along the same wire if the notes or signals differed in pitch. Talk With Electricity By October 1874, Bells research had progressed to the extent that he could inform his future father-in-law, Boston attorney Gardiner Greene Hubbard, about the possibility of a multiple telegraph. Hubbard, who resented the absolute control then exerted by the Western Union Telegraph Company, instantly saw the potential for breaking such a monopoly and gave Bell the financial backing he needed. Bell proceeded with his work on the multiple telegraph, but he did not tell Hubbard that he and Thomas Watson, a young electrician whose services he had enlisted, were also developing a device that would transmit speech electrically. While Watson worked on the harmonic telegraph at the insistent urging of Hubbard and other backers, Bell secretly met in March 1875 with Joseph Henry, the respected director of the Smithsonian Institution, who listened to Bells ideas for a telephone and offered encouraging words. Spurred on by Henrys positive opinion, Bell and Watson continued their work. By June 1875 the goal of creating a device that would transmit speech electrically was about to be realized. They had proven that different tones would vary the strength of an electric current in a wire. To achieve success, they, therefore, needed only to build a working transmitter with a membrane capable of varying electronic currents and a receiver that would reproduce these variations in audible frequencies. Mr. Watson, Come Here On June 2, 1875, while experimenting with his harmonic telegraph, the men discovered that sound could be transmitted over a wire. It was a completely accidental discovery. Watson was trying to loosen a reed that had been wound around a transmitter when he plucked it by accident. The vibration produced by that gesture traveled along the wire into a second device in the other room where Bell was working. The twang Bell heard was all the inspiration that he and Watson needed to accelerate their work. They continued to work into the next year. Bell recounted the critical moment in his journal:   I then shouted into M [the mouthpiece] the following sentence: Mr. Watson, come here- I want to see you. To my delight, he came and declared that he had heard and understood what I said. The first telephone call had just been made. The Telephone Network Is Born Bell patented his device on March 7, 1876, and the device quickly began to spread. By 1877, construction of the first regular telephone line from Boston to Somerville, Massachusetts, had been completed. By the end of 1880, there were 47,900 telephones in the United States. The following year, telephone service between Boston and Providence,  Rhode Island, had been established. Service between New York and Chicago started in 1892, and between New York and Boston in 1894. Transcontinental service began in 1915.   Bell founded his Bell Telephone Company in 1877. As the industry rapidly expanded, Bell quickly bought out competitors. After a series of mergers, the American Telephone and Telegraph Co., the forerunner of todays ATT, was incorporated in 1880. Because Bell controlled the intellectual property and patents behind the telephone system, ATT had a de facto monopoly over the young industry. It would maintain its control over the U.S. telephone market until 1984, when a settlement with the U.S. Department of Justice forced ATT to end its control over state markets. Exchanges and Rotary Dialing The first regular telephone exchange was established in New Haven, Connecticut, in 1878. Early telephones were leased in pairs to subscribers. The subscriber was required to put up his own line to connect with another. In 1889, Kansas City undertaker Almon B. Strowger invented a switch that could connect one line to any of 100 lines by using relays and sliders. The Strowger switch, as it came to be known, was still in use in some telephone offices well over 100 years later. Strowger  was issued  a patent on March 11, 1891, for the first automatic telephone exchange. The first exchange using the Strowger switch was opened in La Porte, Indiana, in 1892. Initially, subscribers had a button on their telephone to produce the required number of pulses by tapping. An associate of Strowgers invented the rotary dial in 1896, replacing the button. In 1943, Philadelphia was the last major area to give up dual service (rotary and button). Pay Phones In 1889, the coin-operated telephone was patented by William Gray of Hartford, Connecticut. Grays pay phone was first installed and used in the Hartford Bank. Unlike pay phones today, users of Grays phone paid after they had finished their call. Pay phones proliferated along with the Bell System. By the time the first phone booths were installed in 1905, there were about 100,000 pay phones in the U.S. By the turn of the 21st century, there were more than 2 million pay phones in the nation. But with the advent of mobile technology, the public demand for pay phones rapidly declined, and today there are fewer than 300,000 still operating in the United States. Touch-Tone Phones Researchers at Western Electric, ATTs manufacturing subsidiary, had experimented with using tones rather than pulses to trigger telephone connections since the early 1940s. But it wasnt until 1963 that dual-tone multifrequency  signaling, which uses the same frequency as speech, was commercially viable. ATT introduced it as Touch-Tone  dialing, and it quickly became the next standard in telephone technology. By 1990, push-button phones were more common than rotary-dial models in American homes. Cordless Phones In the 1970s, the very first cordless phones were introduced. In 1986, the Federal Communications Commission granted the frequency range of 47 to 49 MHz for cordless phones. Granting a greater frequency range allowed cordless phones to have less interference and need less power to run. In 1990, the FCC granted the frequency range of 900 MHz for cordless phones. In 1994, digital cordless phones, and in 1995, digital spread spectrum (DSS), were both respectively introduced. Both developments were intended to increase the security of cordless phones and decrease unwanted eavesdropping by enabling the phone conversation to be digitally spread out. In 1998, the FCC granted the frequency range of 2.4 GHz for cordless phones; today, the upward range is 5.8 GHz. Cell Phones The earliest mobile phones were radio-controlled units designed for vehicles. They were expensive and cumbersome, and had extremely limited range. First launched by ATT in 1946, the network would slowly expand and become more sophisticated, but it never was widely adopted. By 1980, it had been replaced by the first cellular networks. Research on what would become the cellular phone network used today began in 1947 at Bell Labs, the research wing of ATT. Although the radio frequencies needed were not yet commercially available, the concept of connecting phones wirelessly through a network of cells or transmitters was a viable one. Motorola introduced the first hand-held cellular phone in 1973. Telephone Books The first telephone book was published in New Haven, Connecticut, by the New Haven District Telephone Company in February 1878. It was one page long and held 50 names; no numbers were listed, as the operator would connect you. The page was divided into four sections: residential, professional, essential services, and miscellaneous. In 1886, Reuben H. Donnelly produced the first Yellow Pages–branded directory featuring business names and phone numbers, categorized by the types of products and services provided. By the 1980s, telephone books, whether issued by the Bell System or private publishers, were in nearly every home and business. But with the advent of the Internet and of cell phones, telephone books have been rendered largely obsolete.   9-1-1 Prior to 1968, there was no dedicated phone number for reaching first responders in the event of an emergency. That changed after a congressional investigation led to calls for the establishment of such a system nationwide. The Federal Communications Commission and ATT soon announced they would launch their emergency network in Indiana, using the digits 9-1-1 (chosen for its simplicity and for being easy to remember). But a small independent phone company in rural Alabama decided to beat ATT at its own game. On Feb. 16, 1968, the first 9-1-1- call was placed in Hayleyville, Alabama, at the office of the Alabama Telephone Company. The 9-1-1 network would be introduced to other cities and town slowly; it wasnt until 1987 that at least half of all American homes had access to a 9-1-1 emergency network. Caller ID Several researchers created devices for identifying the number of incoming calls, including scientists in Brazil, Japan, and Greece, starting in the late 1960s. In the U.S., ATT first made its trademarked TouchStar caller ID service available in Orlando, Florida, in 1984. Over the next several years, the regional Bell Systems would introduce caller ID services in the Northeast and Southeast. Although the service was initially sold as a pricey added service, caller ID today is a standard function found on every cell phone and available on most any landlines. Additional Resources Want to know more about the history of the telephone? There are a number of great resources in print and online. Here are a few to  get you started: ​The History of the Telephone: This book, now in the public domain, was written in 1910. Its an enthusiastic narrative of the telephones history up to that point in time. Understanding the Telephone: A great technical primer on how analog  telephones (common in homes until the 1980s and 1990s) work.   Hello? A History of the Telephone: Slate magazine has a great slide show of phones from the past to the present. The History of Pagers: Before there were cell phones, there were pagers. The first one was patented in 1949. The History of Answering Machines: Voicemails precursor has been around almost as long as the telephone itself.

Criminal Liability And Use Of Force Essay Example | Topics and Well Written Essays - 1250 words

Criminal Liability And Use Of Force - Essay Example When someone is arraigned in court on the event that they solicited another person, it has to be proven. At this point, corroboration comes in. In court, there always has to be evidence otherwise multitude of people will be held custody and others for no solid reason. Corroboration requirements apply on a crime of solicitation when the accused is guilty of commanding another person to commit a crime. Not only is corroborating evidence a requirement on its own, it needs one witness along with it. Corroborating evidence is so firm on its own that it only needs one witness. It can have recordings of audio and video acts or any other doing. Someone is found guilty even on planning a solicited crime even though the crime is not in progress. The crime of solicitation can be numerous in one plan considering whether they happened in different places, different ways, different times and different payments with different amounts. The accused would be facing several suits. It is found sensible that if one encourages another person to commit a specific crime, it is part of that crime too. Conspiracy is termed used as the agreement or merging of ideas between two people to commit a crime. A conspiracy is successful when there is a motive and is agreed upon, an intention to the motive and an overt act. An overt act could be something like buying of ammunitions and guns to be used in the certain crime. The overt act is a very transparent act that can be used as proof in front of a jury or during jurisdiction on a presentation of a crime.

The Place of a Code of Ethics in the Practice of a Profession Essay

The Place of a Code of Ethics in the Practice of a Profession - Essay Example The paper further strives to comprehend whether engineering can be regarded as a profession or not. Moreover, the paper will also identify the role of ethical responsibilities during the functioning of engineers. IS ENGINEERING A PROFESSION? DO ENGINEERS HAVE SPECIAL ETHICAL RESPONSIBILITIES? Engineering can be concerned with the work and practices that are carried from the part of an engineer. Engineering basically deals with that particular branch of science and technology which is mainly concerned with the use of machines, engines, designing and building large structures. Engineering is a practice that involves skillful work and requires very deep intellectual knowledge regarding the construction of large structures. They are responsible for planning and designing proper layouts that are widely implemented in construction activities. Nonetheless, the concerning part of this case would be to analyses, whether engineering can be considered to be a profession or not? Engineering can definitely be considered as a profession. Contextually, it can be argued that engineering is a profession which demands greater responsibility and considerable competencies in order to render the service as a proficient engineer. Besides, it is considered to be as one of the most profitable professions in the current context that generates a large number of profits. It is true that the concept of engineering is defined with broad ethics and principles but the activities concerned with this concept are large enough to generate value for the engineers. It is considered to be a prodigious profession. At the same time, engineering can be considered to be a very challenging profession owing to the reason that the liability of an engineer is relatively high as compared to other professions. An engineer cannot hide his/her mistakes. Any mistake from his/her part tends to get reflected in his work. For example, if he/she constructs a building that is not up to the mark as per the designed l ayout an engineer will be held responsible for this poor design.

Religious Experience And Its Kinds Religion Essay

Religious Experience And Its Kinds Religion Essay First of all what is a religion. According to Immanuel Kant Religion is the recognition of all duties as divine commands, not as sanctions, i.e. arbitrary and contingent ordinances of a foreign will, but as essential laws of any free will as such . Another popular definition is by Karl Marx Religion is the general theory of this world, its encyclopaedic compendium, its logic in popular form, its spiritual point dhonneur, its enthusiasm, its moral sanction, its solemn complement, and its universal basis of consolation and justification. I can go on and on, there are countless definitions of religion. My personal definition of religion is that it is a state of mind in which an individual feels a need to be subject to a superior being, and therefore makes these beliefs as a way of his or her everyday life. They are several types of religion Christianity, Islam, Judaism, Hindu, Buddhism, etc. But the major types of religion are Christianity and Islam. Every religion is believed to have p eople who have had a spiritual or religious experience. All these religions have some popular figures that have had an encounter with a supernatural being and have told the story of this encounter which has turned their lifes around for the better. They believe that this experience is scared, For example they are other popular examples of these experiences, in islam the Great Prophet Muhammad was said to be in a cave on Jabal al-Nour, when he received his first revelation from Allah (Quran 96). Arjuna was in a chariot on a battlefield, when Krishna revealed his divinity to him. Guru Nanak, the founder of Sikhism, was bathing in a river when he was taken into the presence of God, and shown that there was one divine reality behind the cosmos (Guru Granth Sahib p.1). This examples show that religious experiences are very scared in religion, and play a very important role in a religious individuals everyday life. There are different ways to look at religious experiences; we can look at its universality, Diversity and its importance to religion. Universality: Its is a universal phenomenon, which is anyone at any point in time could experience, for example in the bible when Moses was out tending to his father-in-laws sheep, when he suddenly saw a burning bush from which God spoke to him (Exodus 3:1-4), he had his experience while tending to animals, which shows it could happen at any point in time in our everyday lives. From research and studies its been proved that spiritual or religious experiences has always been in our society. Diversity: There are different types of religious experiences; just the same way there are different types of people and different types of religion, but at the same time they are also some similarities which makes religious experiences very unique and rare in our society. Importance: To religion, religious experience is has so many importance, it is sometimes a life changing experience for example in the bible when Saul was on his way to Damascus to arrest the Christians, Jesus appeared to him in form of a bright light which blinded him for 3 days (Acts (9:1-11). After the experience he changed his name to Paul and joined the Christian community. Apart from being a life changer , religious experiences also alters a persons mentality, the way he or she views life, fellow human beings and the environment. During my research I saw that there could be two versions of religious experiences namely the weak version and the strong version; in 1896 William James in his The Will to Believe describes the versions as the strong version contends that religious experiences are evidence for the existence of God or other supernatural beings for everyone, whereas the weak version holds that they are only evidence for such things for the experiencer. According to my class note there are different kinds of religious experience which are namely regenerative, charismatic, and mystical. Regenerative religious: is one in which the experiencer undergoes a life transformation a conversion. Elsewhere this kind of experience is expressed as experiencing religion, experiencing salvation, or being delivered from evil. Through such experiences, individuals often find their lives to be changed, filled with meaning and newness, and full of love, joy, and hope. Along with conversion and salvation, another facet of the regenerative experience is moral transformation. In this case, prior to the experience, the individual may feel a sense of sin, guilt, or the inability to do what he or she knows to be morally appropriate. Upon having the regenerative religious experience, she senses that sin and guilt have been removed and a new vision of goodness is seen and sought after; a new or renewed emphasis on moral duties ensues in ones life. Such example of such an experience could be found in the bible when Moses was out tending to his father-in-laws sheep, when he suddenly saw a bur ning bush from which God spoke to him (Exodus 3:1-4). This experience of the burning bush (conversation we God) changed his life and made him the man we all know him as. Charismatic experience: This is a type of experience in which special abilities, gifts, or blessings are manifested. Prophecy, divinely inspired revelation or interpretation. Although prophecy is perhaps most commonly associated with Judaism and Christianity, it is found throughout the religions of the world, both ancient and modern. In its narrower sense, the term prophet (Greek: prophutus, interpreter, expounder [of divine will]) refers to an inspired person who believes that he has been sent by his god with a message to tell. In a broader sense, the word can refer to anybody who utters the will of a deity, often ascertained through visions, dreams, or the casting of lots; the will of the deity also may be spoken in a liturgical setting. The nature of prophecy is twofold: either inspired (by visions or revelatory auditions) or acquired (by learning certain techniques). In many cases both aspects are present. The goal of learning certain prophetic techniques is to reach an ecstatic state in which revelations can be received. That state might be reached through the use of music, dancing, drums, violent bodily movement, and self-laceration. The ecstatic prophet is regarded as being filled with the divine spirit, and in this state the deity speaks through him. Ecstatic oracles, therefore, are generally delivered by the prophet in the first-person singular pronoun and are spoken in a short, rhythmic style. Mystical experience: which, as described by James, includes four distinct characteristics: 1) Ineffability: the experience cannot be adequately described, if at all. 2) Noetic quality: the experiencer believes that she has learned something important from the experience. 3) Transiency: the experience is temporary and the experiencer soon returns to a normal state of mind. 4) Passivity: the experience occurs without conscious decision or control and it cannot be brought to happen at will. Some people claim to have experienced God in such an intense way, that they have literally been in the presence of God. Some people also believe they have become one with God at certain times. People who claim to have such experiences are often called Mystics. It is common for Mystics to use a variety of spiritual techniques, such as meditation, to come into the presence of God in this special way. Mystical experiences take different forms, but a common theme among many of them is identity or union with God in Western religion, or with Absolute Reality Brahman or nirvana or the dao in Eastern religion. A description of a mystical experience within the Advaita VedÄ nta school of Hinduism is given by Shankara. In my research I found more kinds of religious experience, first. Numinous: The German thinker Rudolf Otto (1869-1937) argues that there is one common factor to all religious experience, independent of the cultural background. In his book The Idea of the Holy (1923) he identifies this factor as the numinous. According to him the numinous has two aspects namely mysterium tremendum he explains this as having the tendency to put fear into the host, and the second is mysterium fascinas this has the opposite, which is the tendency to fascinate and attract. The numinous experience is said to describe the feeling that God is very different and superior to us. Rudolf Otto sees the numinous as the only kind religious experience. He states: There is no religion in which it [the numinous] does not live as the real innermost core and without it no religion would be worthy of the name (Otto: 1972) Miracles: This is usually said to happen when God acts in a special way in the world, which go against the laws of nature. In the bible Jesus the son of God exhibited lots of miracle; the bible says miracles could happen through any medium. And the bible also says that God works in mysterious ways. So therefore miracles as far as religion is consigned are very significant especially in Christianity. Ecstasy: this is the kind of experience where by the experiencers spirit lives the body, to go and communicate with the higher beings. This kind of religious experience is very similar to that which a shaman experiences. Enthusiasm: This the kind of experience whereby a scared power or being enters into the body or mind of a person and uses the body to manifest supernatural features such as miracles, etc and also uses the person to communicate its message to the world. The person who is used is called a medium. This kind of religious experience reminds me of the term we used in class Avatara the similarity is that the being enters in to a human body. Now lets look at how the science worldviews and translates religious experiences, according to in class video shown by my instructor science has explains religious experience as an epilepsy of the temporal lobe which causes the host to enter a trance and could make him or her believe that they just had an encounter with a supernatural being. It also showed that electronic devices could also cause an individual with a sensitive brain to hallucinate making them see and believe in things that are not actually there. According to the neurotheologist Andrew B. Newberg, neurological processes which are driven by the repetitive, rhythmic stimulation which is typical of human ritual, and which contributes to the delivery of transcendental feelings of connection to a universal unity. However, that physical stimulation alone is not sufficient to generate transcendental unitive experiences. For this to occur they say there must be a blending of the rhythmic stimulation with ideas. Once this occ urs à ¢Ã¢â€š ¬Ã‚ ¦ritual turns a meaningful idea into a visceral experience. Moreover they say that humans are compelled to act out myths by the biological operations of the brain due to what they call the inbuilt tendency of the brain to turn thoughts into actions. The scientists have been able to also show that religion and its beliefs are natural, that man always feels the need to believe in something, a higher and superior being. So therefore science explains religious experiences in another way and gives us all another point of view. In conclusion Religion experience from my point of view and experience is that they are real, they are actually cases where a being has manifested itself to a human being and also there cases where people have lied about these experiences, which has also put doubt the minds of some people that religious experiences do not exist, but because of my beliefs as a practicing Christian i believe that God could communicate with human beings thru different mediums. Work Citied. http://www.thatreligiousstudieswebsite.com/Religious_Studies/Phil_of_Rel/God/religious_experience_intro.php http://en.wikipedia.org/wiki/Religious_experience http://atheism.about.com/od/argumentsforgod/a/religexperience.htm The Holy Bible (Authorized King James Version) Comparative religion slides

Master and slave operation Essay

Bluetooth devices exist in small ad-hoc network configuration with the ability to operate as either master or the slave; the specification also allows a mechanism for master and slave to switch their roles. The configurations can be single point, which is the simplest configuration with one master and one slave. Multipoint, called a Piconet, based on up to 7 slaves clustered around a single Master. And a third type called a Scatternet, this is a group of Piconets effectively hubbed via a single Bluetooth device acting as a master in one Piconet and a slave in the other Piconet. The Scatternet permits either larger coverage areas or number of devices than a single Piconet can offer. Figure 5 outlines the different master and slave topologies permitted for networks in the standard (see â€Å"Bluetooth: Goodbye Infrared†). The role of the master is to control the available bandwidth between the slaves, it calculates and allocates how often to communicate with each slave and locks them into the appropriate frequency hopping sequence. The specification describes an algorithm that calculates the hop sequence, the seed being based on the master’s device address and clock. In addition to hop sequence control, the master is responsible for transmit control by dividing the network into a series of time slots amongst the net members, as part of a Time Division Multiplexing (TDM) scheme. These time slots can consist of data and potentially additional voice traffic i. e. you will always need a data channel before you can add a voice channel. The time slot is defined as 625  µs and all packet traffic is allocated 1, 3 or 5 slots, grouped together in transmit and receive pairs. Prior to connection some operations such as inquiry, paging and scanning operations may sometimes occur on half slots (see â€Å"Bluetooth: Goodbye Infrared†). Figure 5: Point to point, Piconet and Scatternet. A. 2. 3 Voice and Data Links. Bluetooth carries communication traffic over two types of air interface links defined as Asynchronous ConnectionLess (ACL) or Synchronous Connection Oriented (SCO). During a connection the links carry voice and data traffic in the time slots and are categorised as either time critical, as used for voice and audio, or high speed non-time critical data with a mechanism for acknowledgement and re-transmission. The first link established between master and slave is the ACL link and carries high speed data that is insensitive to time. It is packet switched, as the data is sporadic in nature, asynchronous, contains asymmetric and symmetric services and uses a polling access scheme. A master may be permitted to have a number of ACL links up to the maximum number of slaves permitted by the specification but only one link is allowed between any two devices (see â€Å"Bluetooth: Goodbye Infrared†). Once an ACL has been established a SCO link can be created on top of the ACL link. The SCO link is circuit switched; it has symmetric synchronous services and has slot reservation at fixed intervals, making it suitable for time critical data such as voice. The specification restricts the number of SCO links that a master can support to three. Summarising the two types of links: ACL ? Packet constructed of a 72 bit access code, a 54 bit packet header, a 16 bit CRC and Payload data ? Largest data packet is DH5 giving 723. 2 Kb/s as highest data rate in one direction. ? Non time critical data ? Asynchronous ? Packet switched ? Polling access SCO ? Same access code and header as ACL packets ? ARQ (Automatic Repeat reQuest) and SEQ (SEQuence) flags redundant since flow control and re-transmissions do not apply ? Cyclic Redundancy Code (CRC) field is absent? Payload fixed at 30 bytes, with source data of 10, 20 or 30 bytes ? Circuit switched ? Symmetric synchronous services ? Slot reservation at fixed intervals A special case exists that mixes SCO and ACL packets. Known as the Data Voice (DV) packet it carries data and voice on regular intervals like the SCO. The voice data has no flow control or CRC as per SCO packets, whereas the data part of the DV packet has flow control, re-transmission of the data part is permitted and the data part is CRC protected (see â€Å"Bluetooth: Goodbye Infrared†).

Defining Motivation Well Known And Unsolved - 3147 Words

Defining motivation: Well-known and unsolved When we see a person acting in an abnormal way, we cannot help but think â€Å"why are they doing that?† We form judgements about people and question the reasoning behind their actions in an attempt to better understand their situation. This ability to understand intentions plays an important role in today’s society, allowing us to relate to one another and form deep connections through picturing ourselves in that same position. Nevertheless, there are times when we are unable to relate, and unable to understand why someone chooses to act in a certain way, say a certain thing, or be a certain type of person. This desire – this motivation to do something – has been felt by each and every human being†¦show more content†¦That being said, the characteristics when defining a concept include being 1. Simple and easy to understand; 2. Useful in the field to which it relates; 3. Specific enough to refer to one and only one possible entity, being the definiendum; 4. Measurable; 5. Reflect current scientific knowledge (Gupta, 2008). The nature of motivation has traditionally been separated into two qualitatively distinct forms: a) intrinsic interest and; b) extrinsic motivation (Deci Ryan, 1985). This assumption has served as the foundation of many psychological theories and experiments. Yet, when this same concept is viewed from a neurological standpoint, there is evidence to suggest that both intrinsic and extrinsic motivations activate the same areas in the striatum that are associated with rewards, implying that they may both part of the same reward based system. (Murayama et al., 2010) This, along with other examples (see Shultz Lepper, 1998), suggest that neuroscience and computational theories may be able to account for complex phenomena in much simpler terms. This could allow for greater generalizations and uniformity in future models of the brain, leading to insights we might not have otherwise made. Whether it is a morning cup of coffee, the

`` Brave New World Of Digital Intimacy `` And Mark Twain...

Humanity started as small tribes of people working together and benefiting each other, with each member having a clear identity that complements the other small group members. The advancement of civilization threatened this identity. Soon, hordes of people living together in cities, towns, and countries drowned out individual voices and opinions, causing people to lose a sense of identity. While it may be hard to maintain a sense of identity in a crowd, society offers many hidden benefits that can counterbalance the struggles of identity. Two readings, Clive Thompson’s â€Å"Brave New World of Digital Intimacy† and Mark Twain’s â€Å"The Dairies of Adam and Eve† show how society and sharing the Good life can benefit the individual overall, and might even help an individual find their own identity. In Mark Twain’s â€Å"The Diaries of Adam and Eve,† Adam first struggled with the existence of his new life partner Eve. He hated the fact that he never had alone time, and the fact that Eve was starting to name all the animals in the garden. Matters worsened when they had kids. However, near the end of the reading, Adam begun to realize that Eve enriched his life in a way that he never knew before. Adam, in return, also enriched Eve’s life. The two found happiness together where they normally would not find it alone. The pair’s relationship shows the core idea of forsaking solitude and peace for something more, the companionship and joy of others. In the section under â€Å"Ten Years Later† Adam