Mobile Phone Several examples of non-flip mobile phones‚ from the early 2000s. [pic] |Inventor |Martin Cooper | |Launch year |1973 | |Company |Motorola | |Available? |Worldwide | A mobile phone (also called mobile‚ cellphone or handphone) is an electronic device used for full duplex two-way radio telecommunications over a cellular network of base stations known
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ACKNOWLEDGEMENT INTRODUCTION Mobile phones‚ also known as cell phones or wireless phones‚ are hand-held phones with built-in antennas. Unlike home phones‚ cell phones can be carried from place to place with a minimum of fuss. This makes them a good choice for people who want to be in touch with other people even when they are away from the house. Cell phones are a vast improvement over the telecommunications technology of the past‚ and have become a necessity of modern life. As always‚ communication
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HI‚ Nowadays mobile phones are literally invading our lives; from children to THE elderly‚ almost everybody owns one. Some people take their own device everywhere with them and cannot bear BEING without it. It has eventually become a common habit to be on the phone in every situation‚ no matter with whom you might be and in which occasion‚ your loyal “friend” is always with you‚ ready to ring and make you happy. This might in some extreme cases affect relationships WITH people‚ because it
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Mobile Phone Disadvantage #1 – An Unsafe Safety Standard Mobile Phone Disadvantage #2 – Negative Health Effects Mobile Phone Disadvantage #3 – Cause of Infertility in Man In case you have not read the first part Unsafe Safety Standard: Mobile phones transmit and receive Radio Frequency (RF) signals in order to communicate. The RF signals from mobile phones fall within the microwave part of the electromagnetic spectrum. This radiation is also referred to as microwave radiation or electromagnetic
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Jurgita Povilez Mobile phones are an invasion of people’s privacy With the speedy advancement of the technology level‚ human beings are now being brought to an unprecedented era they have ever experienced. And mobile telephone‚ emerged as one of the most popular invention‚ seems to be an indispensable device that we cannot live without it. But while we are being attracted by such fashionable technology‚ are we also aware of its negative side? ‚could mobile phones be an invasion of people’s privacy
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Why people nowadays prefer using mobile phone to using telephone ? Although many researches indicated that mobile phones have some bad influences on human‚ The number of people using mobile phones are increasing every year. First of all ‚ I’ll talk about the advantages of cell phone and how does it influence to our daily life . The most obvious advantages of mobile phone are that it can be mobilized. People can use mobile phones everywhere they want such as buses‚ companies‚ schools etc. Meanwhile
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and disadvantages of owning a mobile phone By: Wayne Leon Learmond • Published: December 5‚ 2013 Long gone are the days when people would search around desperately for loose change in order to use the public phone box. Long gone are the days of standing in queues in all weathers in order to wait for that all-important phone call - if one did not have a land-line phone at home. Mobile phones have freed us from all of the inconveniences of the way we used phones in the past. The blessing
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1.What energy is converted into electrical energy from mobile phone batteries? Chemical energy is converted in to electrical energy from a mobile phone battery 2.What is sound energy from your voice converted to inside a mobile phone for transmission from the phone to a cell tower? The sound energy is first converted in to electrical energy by its batteries and then converted in to microwaves by the phones antenna and then it is sent to the nearest cell tower at a particular frequency. 3
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Please talk to me but not the mobile phone “Hey! Are you listening to me?” my friend yelled at me during the meal. It is not the first time I was blamed by my friend because of using my mobile phone texting with others during the meal. I put aside my mobile and started to think. I used to hate others using mobile phone when they are having meal with me‚ why it becomes my habit nowadays? Nowadays‚ mobile instant messaging has become a very popular and common application in everyday life‚ most of
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Pros and Cons on Smart phones There are many pros and cons on smart phones. Smart phones got their ups and downs. Some Smart phones are good and some are bad but it helps a lot because it can guide you through things you don’t know. In smart phones do you think that the good out weights the bad? We will see what will be the caused for today. The pros on smart phones is they are convenience‚ connection‚ instant information‚ real-time conversation‚ Convenience‚ and technological. The pros
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