Magnetohydrodynamic drive In concept‚ MHD is attractive because it offers a propulsion system that requires no moving parts. It works on a principle similar to that of an electric motor or generator; that is‚ passing an electrical current through a magnetic field creates a force. In an MHD propulsion system‚ a magnetic field is created within the hull‚ and sea water is used to conduct the electric current‚ as shown in the illustrations accompanying this story. The underlying principle is known
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Hard Drives Hard drives have been around longer than you think. In 1956‚ I. B. M. had invented a disk storage unit that was very large but did not store a lot of data. It was twenty-four inches in diameter and could hold only five megabytes‚ which is the equivalent to three and one half floppy disks. Originally called “fixed disks” later became known as “hard disks” opposed to floppy disks. In 1973‚ I. B. M. released a hard drive that could hold seventeen and one half megabytes. In 1980 Seagate
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Prompt-Many people have hobbies like gardening or knitting. Why people enjoy hobbie? Write an essay explaining why people enjoy hobbies. Supply reasons and examples to support your view. Hobbies are practiced for interest and enjoyment rather than financial award. There are numerous benefits to engaging in hobbies: reduce stress body and mind‚ discover the hidden talents and make good friends. Engaging in hobby can reduce stress body and mind. When hobbyist works in hobby‚ she will relax and enjoy
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A hobby can be almost anything a person like to do in his spare time. Because the “Idle Mind is Devil’s workshop” therefore those who have developed a hobby never need to worry about what to do with their newly founded leisure hours. Every person in the world has a hobby of his own. There are many kinds of hobbies such as gardening‚ stamp collecting‚ hiking‚ coin collecting‚ photography‚ listening to music and so forth. Girls to pursue some hobbies. Their hobbies differ from those of the boys
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My favorite Hobby The photography for many people is an art‚ or process of producing images. But for me the photography is my personal hobby. I love to take picture because I can capture the magic of those wonderful moments‚ people or places. I have make a diary photography for my child to know all those moments. I wrote a diary about my experiences‚ thoughts or feelings and direct experience. Now I took picture with the same idea that a diary. For example‚ when I wake up in the morning‚ the firth
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the teachers behave with us like our affectionate elders‚ guiding us in every step of our life. My hobby A hobby is a special work which a person does for the sake of his amusement. It is our favourite recreation. A hobby is generally an art in which a person is most interested. A hobby to one may be a profession to other. It always serves as a source of recreation. There are numerous hobbies. Some are fond of singing. Others like to draw pictures. Some collect stamps and old coins while others
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like to spend drinking warm tea and reading a novel‚ I’m cruising through snow‚ both my legs strapped to a wide plank of wood and fiberglass‚ practicing sport known as snowboarding. Writing this essay helped me to realize that I haven’t chosen this hobby by a coincidence. Both of the characteristics of this sport changed the world history. Events like the French revolution of 1789 or the uprising in the Jewish ghetto in Warsaw in 1943‚ would not have happened if people hadn’t had courage and belief
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Many people have hobbies‚ game nights‚ video games‚ friends‚ animals‚ the list goes on. These are all just the small things people have that help them through their lives. They are the small things they do to have fun. These things keep time moving fast and keep life lively. Then there are the other things that make things easy‚ and help people get through the week or even the day. The little things I like to do are just enough to keep me going. These things I do are easy‚ difficult‚ fun‚ relaxing
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Gambling‚ Is It A Hobby or Drug? Shinae’ George ENC 1102-57 Gambling comes in so many forms. The ideal thought of gambling typically refers to making wagers in a casino or even online in a game of roulette‚ poker‚ blackjack‚ or slots machines and even on/off track betting. What most people fail to realize is that lotto is also a form of gambling. For most people the itch to gamble starts with scratch off cards; while some do it for fu others are addicted and jeopardize themselves in doing
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Flash Drives A common property of mass storage systems based on magnetic or optic technology is that physical motion‚ such as spinning disks‚ moving read/write heads‚ and aiming laser beams‚ is required to store and retrieve data. This means that data storage and retrieval is slow compared to the speed of electronic circuitry. Flash memory technology has the potential of alleviating this drawback. In a flash memory system‚ bits are stored by sending electronic signals directly to the storage medium
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