Gunpowder- Chinese Invention Chinese taoist alchemists were the major force behind the early invention of gunpowder. Emperor Wu Di (156-87 B.C.) of the Han dynasty financed research done by the alchemists on the secrets of eternal life. The alchemists experimented with the sulphur and saltpeter heating the substances in order to transform them. The alchemist Wei Boyang wrote the Book of the Kinship of the Three detailing the experiments made by the alchemists. During the 8th century Tang dynasty
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AIX commands you should not leave home without Page 1 of 15 AIX commands you should not leave home without Level: Intermediate Shiv Dutta‚ Senior Software Engineer‚ IBM 06 May 2003 Updated 24 Oct 2006 Do you ever feel you wish you could answer some of your own questions when you work with AIX® and your System p™ server? Do you ever feel you could save time by not having to call on the support professionals all the time? Well‚ wish no more. Shiv Dutta discusses some of the AIX commands that
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he The Invention Of Mobile Phone A mobile phone (also known as cellular phone‚ cell phone or handphone)‚ which is a device that can make and receive telephone calls over a radio link around the world. Cell phones connect cellular network from the mobile phone operator. It then allows access to the world-wide network. Compared with a cordless phone‚ it is only used within a short range of a private base station. The first mobile phone was showed by John F. Mitchell and Dr Martin Cooper of Motorola
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kitchen duty. From Lean In: What Would You Do If You Weren’t Afraid? Sheryl Sandberg stated “I aspire to a leadership role in whatever field I ultimately work‚” she describes what her goal is as a women but millennial‚ women were also less likely than their male peers to characterized themselves as leaders‚ visionaries‚ self-confident‚ and willing to take risks. Women are not given fair pay and rights. Like‚ both genders can complete the same activity but because “you are a girl” guys receive the advantage
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Thomas Edison(draft) Thomas Edison was one of the greatest inventors and industrial leaders in history. Thomas Edison’s inventions are still used today in many different ways. In that essay I am going to talk about his early life‚ his career‚ and last what did he offer to the society. Thomas Alva Edison was born to Sam and Nancy on February 11‚ 1847‚ in Milan‚ Ohio. Known as "Al" in his youth‚ Edison was the youngest of seven children‚ four of whom survived to adulthood. Edison tended to be in
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something I don’t favor‚ The song itself isn’t completely about not getting what you want‚ but the parts that are about that are the reason why I chose this song. I think one the parts of the song that I can agree with is "You can’t always get what you want/ But if you try sometime you find/You get what you need." Things won’t always go the way you want them to‚ but sometimes they end up being better than what you had originally had
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Television is a great invention Some people say television is the worst inventions of modern times. They make this assertion for some reasons. The following points are some of them. First‚ they think that televisions make people more passive than before. Second‚ they think televisions contribute to the fact that people are more distant to each other. To begin with‚ I must admit that the first point is reasonable. With a television all you need to do—and all you can do is to sit on a comfortable
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dynasty inventions that have been famously credited to this period. These inventions have in one way or another shaped the way our world is lived in right now. The first and perhaps the most popular is the invention of the paper making process during the Han dynasty. Although historians claim that the oldest piece of wrapping paper can be traced back to the Chinese during the 2nd BCE‚ the process of making paper was invented during the Han period. The eunuch Cai Lun was credited for this invention. His
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Just imagine how our lives would be if all of the technology and inventions we have in today’s modern society were never invented. A history marking event called the Industrial Revolution began in England in the middle of the 18th century and spread to the rest of Europe and the United States in the early 19th century. This era changed the way people worked and lived in drastic ways. New machines were invented and a large part of the population moved from the countryside to urban areas. In the early
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ornithopter-Da Vinci was fascinated by birds. He watched them‚ sketched them and borrowed ideas from them for his inventions. One of the results of this fascination was the ornithopter‚ a device conceived by da Vinci that would theoretically have allowed humans to soar through the air like birds. While da Vinci’s parachute would have allowed a human being to jump off a cliff without being hurt‚ the ornithopter was actually a way for people to soar off the ground and into the air. On paper‚ the ornithopter
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