BATTERIES What is a battery? A battery is a container consisting of one or more cells carrying an electric charge and used as a source of power. SECONDARY BATTERIES * rechargeable * high cost (short-term) low cost (long-term) * used in objects with high energy requirements: e.g. mobile phones‚ power tools * require special handling‚ containment & disposal * limited interchangeability * long life time * produce smaller amount of waste (flat discharge curve)
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Dragon fruit‚ also known as pitaya or pitahaya‚ belongs to the Hylocereus genus of the Cactaceae family. It is recognized as leathery‚ slightly leafy – skinned sweet fruit of many cactus species rooted from Mexico‚ which was believed to be then brought to Central America by the European. Nowadays‚ dragon fruits are widely cultivated in the United States‚ the South East Asia region‚ Israel‚ Australia‚ Cyprus‚ as well as the Canary Islands (Morton‚ 1987). The term “dragon fruit” is used in English
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Dragon fruit in Vietnam has three main varieties: red-skinned fruit with white flesh‚ red-skinned fruit with red flesh and yellow-skinned fruit with white flesh. Since the white-fleshed dragon fruit (or Pitaya) can grow stronger‚ larger and produce sweeter fruit than other varieties‚ they are much more planted in the Vietnam. Dragon fruit with red and yellow flesh are also popular‚ but the area for red-fleshed dragon fruit in the rural areas in Vietnam is trivial and its productivity equals only
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Golden Fruit Golden fruit is the essay to expose life from the fruit of Orange and comparing with life that what the different character that all the man we have in this world. A A. Milne tries to tell us that there is a different character‚ different manner of living in this human world. In short‚ by using an Orange little fruit‚ he tries to conveying that there is a number of what to live in in this world. Abraham Lincoln sent the letter to the headmaster of his son schooling‚ “teach him to
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Doctors say that everyone should take more vegetables and fruit than rice or wheat. Rice and wheat contain much carbohydrate which is quite essential for energy. But more of rice and wheat and less of vegetables and fruit is not a balanced diet. Vegetables and fruit contain nutrients like vitamins‚ calcium‚ iron‚ phosphorus‚ folic acid‚ iodine‚ magnesium‚ zinc etc. Green leafy vegetables contain a lot of nutrients‚ especially calcium and iron. We should take one type of green leafy vegetable
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ion gains or loses electrons without becoming neutral‚ its electronic charge is altered in the process. In chemistry the loss of electrons is called oxidation while electron gain is called reduction. The first battery was created in 1799 by Alessandro Volta . Today batteries provide the power for an amazing variety of devices‚ everything from flashlights to robots‚ computers‚ satellites and cars. Inventors and researchers
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hens produce a very high yield of around 300 eggs a year. Chickens will naturally live for 6 or more years but after 12 months‚ the hen’s productivity will start to decline. This is when most commercial laying hens are slaughtered. BATTERY CAGES In Europe‚ a battery cage typically holds 4 or 5 hens with a legal space allowance per bird of less than an A4 sheet of paper. The height of the cage is only just enough to allow the hen to stand upright. In the US‚ the space allowance per hen is even lower
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Fruits and Vegetables Outline • This stuff is scattered in the book. – Pp. 92-101 – pp. 44-47 • • • • • • • • • Tomato Apple Citrus Brassica Banana Carrot Onion Squash and Melon Tropical Fruits Fruits: Botanical and Popular • Botanically‚ a fruit is the ripened ovary wall. The ovary is part of the carpel‚ the innermost whorl of a flower‚ the female reproductive structure. The ovary contains the ovules‚ the haploid equivalent to mammalian eggs. – Some fruits also contain parts of the flower
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Science POTATO BATTERY: THE ADVENT OF TECHNOLOGY TABLE OF CONTENTS RESEARCH……………………………………………………………………...I PURPOSE……………………………………………………………….….……II DISCUSSION………………………………………………………………...…IV MATERIALS AND PROCEDURES……………………………………….......V RESULTS…………………………………………………………………....….VI CONCLUSION……………………………………………………….….….…VII BIBLIOGRPAHY……………………………………………………….….……VIII RESEARCH The potato is a starchy‚ tuberous crop from the perennial Solanum tuberosum of the Solanaceae
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ACID) AS ALTERNATIVE BATTERY Battery or more precisely‚ a cell – is a device in which the reaction between two substances can be made to occur in such a way that some of the chemical energy is converted to useful electricity. Since its invention‚ the battery has become the most common power source for many household and industrial applications. There are many ways to construct a battery‚ as well as ways to control its generated output. This Home-made Vinegar Battery is a battery that is constructed
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