The Invention of Paper Try to imagine a life without paper. Even in this era of emails and digital books‚ paper is all around us. Shopping bags‚ paper money‚ store receipts‚ cereal boxes‚ toilet paper‚ etc.‚ prove we use paper in many ways every day. Islamic people helped spread paper to the west‚ where paper started to be produced more and more and finally‚ printed as we know it today. But‚ Before Muslims spread paper into the west; recently‚ archeologist’s extravagated letters written in Sogdian
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states‚ and even other countries. But have you ever wondered how different today’s world would be without the invention of the telephone? In my opinion‚ the telephone has brought about the most far reaching and lasting changes in our civilization. The invention of the telephone has caused both positive and negative outcomes to our society. Some of the advantages of the invention of the telephone are: We can now instantly contact our family and friends‚ businesses can spread their services
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simple Pelton wheel rig for experimental use in a university laboratory. The final design should be able to be built with the equipment and resources at the university and be able to be operated with the most basic knowledge of water turbines. This report also goes into the theory of turbines and power generation‚ particularly in larger scale water turbines that are used across the globe. Conducting experiments using this rig should provide students with basic knowledge about the Pelton wheel and the theory
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The most important invention of ALL time has to be the invention of Apple Incorporated. It is a multinational corporation that creates consumer electronics‚ computer software‚ and a commercial server. Apple’s most popular inventions are the iPhone‚ iPod music player‚ and Macintosh computer line-up. (WHO)The inventers of Apple Inc. are Steve Jobs and Steve Wozniak.(WHERE) Apple Inc. was incorporated in January 3‚ 1977‚ in Cupertino‚ California. (WHEN)The inspiration came from when Mr. Wozniak attended
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It has been called the pill that transformed America‚ the single most important invention of the 20th century. The invention being referred to is the birth control pill. Before the actual pill‚ there had been various forms of birth control‚ but none of them seemed to be very effective or simple to perform. One of the oldest references to birth control was the “withdrawal” method referenced in the Bible. In the 1870’s‚ a wide assortment of birth control devices were available in America -- such as
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Title: First Ferris wheel Specific Purpose: To inform my audience the ability to understand the magnitude and ingenuity of the first ferris wheel built for the World ’s Columbian Exposition at the Chicago Fair. Central Idea: The building of the first ferris wheel was an amazing accomplishment in 1893 Intro I. "There is nothing in the World ’s Columbian Exposition that compares in genuine novelty and sensationalism with the great vertical wheel which stands in the very center
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the omni directional steering mechanism is to achieve the four steering modes. 1. Two wheel steering (Only front wheels are steered ) 2. Four wheel steering (Front and rear wheels are steered) a) Normal mode (direction of rear wheels is opposite to that at the front) b) Crab steering mode (Front and rear wheels are in the same direction) c) Zero turn radius mode (Front wheels turn inwards and rear wheels turn outwards; enables the vehicle to take a 360® turn in its place)
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Water Wheel Work‚ Power‚ and Efficiency Pre-Lab Preparation: Purpose: The purpose of this lab was to create an efficient water wheel that would produce a productive time in lifting the cup of nuts and bolts that was attached to the pipe used in rotating out water wheel. The more efficient our wheel was the better the time we would have in lifting our cup. We were then able to observe the work that was needed to turn the axel‚ the time that is taken to bring the cup of washers to the axel‚ and
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ENERGY STORAGE SYSTEMS – Vol. I – Flywheels and Super-Fly Wheels - B. Kaftanoğlu FLYWHEELS AND SUPER-FLYWHEELS B. Kaftanoğlu Middle East Technical University‚ Ankara‚ TURKEY Keywords: Flywheel‚ super-flywheel‚ energy storage‚ composites. Contents U SA NE M SC PL O E – C EO H AP LS TE S R S 1. Introduction 2. Applications 3. Flywheel design 4. Historical perspective of flywheel design 5. Stress Analysis and Specific Energy Calculations of Flywheels 5.1. Stress Analysis
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The mobile phone—world’s best invention On 10th of March‚ 1876 Alexander Graham Bell transmitted the first speech using electricity. From that day forward‚ the telephone system changed every aspect of life. Although it did not immediately change the world‚ it set communication on a path that would change the future of communication. Mobile phones appeared in the early 1980’s and today there are millions in use. Today‚ mobile phones do much more than just allow for voice conversation‚ mobile phones
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