and played back at a later date. Edison invented the phonograph‚ but others perfected it. 10 years after the invention was introduced‚ Emile Berliner patented the Gramophone‚ which used records instead of tinfoil cylinders to record sound. When the record is recorded‚ a needle cuts grooves into a disc or piece of tinfoil‚ and when the needle runs along the grooves it had previously cut‚ the sound that the grooves represent is played back. The grooves were originally cut into a piece of tinfoil‚ but
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I found out that Richard Edgeworth invented the Caterpillar track in 1770. In the Crimean War some steam powered tractors based the caterpillar design was successful in mud. tanks weren’t invented until the arrival of the internal combustion engine‚ patented by Gottlieb Daimler in 1885. In the USA the Holt Company built a tractor with caterpillar tracks that was used to move over difficult territory. It was suggested that this machine might be adapted for military use‚ those in positions of authority
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that usage of mobile phones will lead to brain cancer? Mobile phones produce radio frequency radiation or radio waves. It is a form of non-ionizing radiation. “Non-ionizing radiation simply means that there is enough energy to move atoms in a molecule around or cause them to move‚ but not enough energy to remove electrons.” (Ionizing and Non-Ionizing Radiation‚ US Environmental Protection Agency n.d) With this said‚ atoms and molecules of tissues closest to where the mobile phone is held‚ could
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Use of mobile phones should be banned in public places Imagine you are cashier in a supermarket. It must be very annoying to help an costumer who is on the phone and who is not paying attention at all. That is why use of mobile phones should be banned in public places. First of all‚ using a mobile phone in public places is very asocial and it can disturb people who are around. Public transport‚ cinemas‚ Music theatres etc. are places where people do not want to be disturbed. However there are still
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TREVONNA POLLARD ENG10 PROFESSOR DiSALVO 09/12/2011 ATTENTION GRABBERS In today’s society every individual tries their best to grasp the attention of others by switching or twisting the words of others in just a wink of an eye. According to Brian Morton: “They are shiny from their makeover‚ they are fabulous and gorgeous‚ and they want us to know that we can have it all” (2). The author’s idea coincides with my thesis. I believe that people broadcast information that is soothing to the ears
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Essay Topic: Do you think that parents should provide their children between the ages of 12 16 a smartphone for daily use? Write an essay that proves one way or the other. (You must choose one side only). Thesis Statement: Parents should provide a smartphone device for their children between ages 1216 due to the many positive uses the phone may have. Intro: Imagine if a normal teenager had to go one day of their lives without using an air conditioning unit or a heat. The normal
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Mobile Phones Bridging the Digital Divide for Teens in the US? INTRODUCTION In today’s era‚ mobile and internet both are the basic necessities of each and every human being. And in teens in US‚ mobile and internet are the craziest thing to be online and to be in touch with in social networking sites with friends and all. Most important thing to discuss over here is‚ teens‚ whose parent’s salary is less than $30000 per year are‚ and they are using mobile internet connection at highest price more
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A PROJECT REPORT ON “Brand preference of mobile phone among Ujjain youth” SUBMITTED TO PT. JAWAHARLAL NEHRU INSTITUTE OF BUSINESS MANAGEMENT UJJAIN In Partial Fulfilment of the requirement for the Award of the Degree of Master of Business Administration (MBA) Vikram University‚ Ujjain (M.P.) 2009-11 PROJECT GUIDE Submitted by DR. SACHIN RAI Lalit Rathod MBA 4th semester
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Did you know itś been Fifty three years since the first Mustang was invented?To add on‚ it was introduced in April 17‚ 1964.It was the best automobile in 1964.To begin with‚it is popular and it introduced a more modern design.Last but not least‚ it also made a new class of vehicle called pony car.To begin with‚ it was popular.”The Ford Mustang was introduced in 1964. On the first day of its release‚ more than 22‚000 Mustangs were sold. In the first year‚ 418‚810”In addition‚the Mustang was introduced
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the popularity of mobile phones has brought about a lot of convenience but at the meanwhile a variety of problems as well‚ such as social‚ medical and technical problems. However‚ I do not think these disadvantages will outweigh the advantages brought by cell phones. In this essay‚ I would like to analyse these three issues in order to support my viewpoint. First of all‚ almost everything that changed our lifestyle a lot will also cause some social problems. Mobile phones are not out of expectation
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