Metal Facts


Molten gold is poured into moulds at a smelting plant. When the bullion cools, it forms bars that are 99.99% pure. These are stored in strong vaults. Mercury, sometimes known as quicksilver, expands by a relatively large amount when warmed, and so is widely used to measure temperature. 75% of all known elements are metals….
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Foreign Body in the Eye


Most people have suffered the discomfort of a foreign body entering the eye, even minute items such as very small pieces of dust, grit, particles flying from an emery wheel (common in industry), a cinder, or grains of sand in windy weather can cause acute discomfort and distress. There is usually a desire to rub…
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Planting Avocado Trees


In Florida, Southern California and other frost-free regions, the avocado is a practical fruit and shade tree for the home grounds, thriving either in or out of the lawn area. A heavy mulch or cover crop should be maintained beneath the tree to conserve soil moisture and keep weeds in check. Avocado flowers are borne…
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Lake Facts


Most of the world’s great lakes lie in regions that were once glaciated. The glaciers carved out deep hollows in the rock in which water collected. The Great Lakes of the USA and Canada are partly glacial in origin. In Minnesota, USA 11,000 lakes were formed by glaciers. The world’s deepest lakes are often formed…
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Grape Facts


Grapes are juicy, smooth-skinned berries that grow in tight clusters on woody plants called vines. Grapes can be black, blue, green, purple, golden or white, depending on what kind they are. Some grapes are eaten fresh and some dried as raisins, but 80% are crushed to make wine. Grapes are grown all round the world…
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Wasp Sting Treatment


Box Jellyfish (Chironex fleckeri, formerly known as the Sea Wasp). This extremely toxic and highly lethal marine creature is fairly widespread in subtropical and tropical parts of Australia. Once a person is bitten, death can be almost instantaneous. Avoid bathing in areas known to be infested. Wearing special whole-body swimming gear may offer protection. Intense…
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How to Use a Paintbrush


The paintbrush is the most versatile and widely used tool for applying paint. Choose the brush size to match the surface that you are painting. For example, for painting glazing bars (muntins) on windows or narrow moldings on a door, use a slim brush or perhaps a cutting-in (sash) brush if you are painting up…
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How to Choose Mulch


A mulch is a layer of protective material placed over soil. It assists in retaining moisture, conserving warmth, and preventing soil splash on foliage and flowers. There are a variety of mulches to choose from, principally: Clay Granules Clay granules are widely used for hydro-culture, but can also be used to mulch houseplants. When placing…
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Exercise During Pregnancy


Exercises during pregnancy are designed to improve the muscle tone of specific in this case, those areas involved in childbirth—and to relieve tension. Doing all of the following exercises slowly and in jerky movements can overstretch tendons and ligaments, and possibly even joints. In the beginning, do each exercise only two to three times per…
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Mating Facts


In some species of Australian marsupial mouse, the male dies after a two-week mating period. A beaver stays with its mate for many years, producing a new litter each year. A male hedgehog courts a female by circling her, sometimes wearing a deep groove in the soil, until she accepts him. Male Californian sea-lions bark…
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Tonsil


Paired structures located in the back of the throat that are composed primarily of lymph tissue and are strategically placed to serve as a defence against infection. Unfortunately, they themselves can become acutely or chronically infected, a condition called tonsillitis. While any number of viruses or bacteria can cause tonsillitis, two of the most important…
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Hermaphroditism


Hermaphroditism is a very rare condition in which the person has both ovarian and testicular tissue occurring together. The appearance of the external genitals varies greatly, and the persons have a problem for life. With more recent methods of studying chromosomal anomalies today, many have been found to have aberrations. In some it seems there…
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Bible Study Romans


Author: Paul Date: c. A.D. 58 The Book of Romans is one of the most important, carefully-put-together, and theological books in the New Testament. The apostle Paul was evidently thinking about the great city of the ancient world, Rome, and although he had never been there he wanted to explain the nature of the Christian…
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What is Astigmatism?


This is distorted vision caused by a variation in refractive power along different meridians of the eye. It may be regular or irregular. Most cases are due to irregularities in the shape of the cornea, but the lens may also cause astigmatism. Heredity may also play a part, and the error can usually be treated…
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Amniocentesis


Amniocentesis is a test to detect abnormalities in the baby. It may also be done to assess fetal lung maturity if induction of labor or cesarean delivery is indicated. The test is performed by administering a local anesthetic, then drawing a sample of amniotic fluid using a long needle inserted through the abdominal and uterine…
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Acute Adrenal Crisis


What is Acute Adrenal Crisis? Acute Adrenal Crisis is a life-threatening condition resulting from insufficient levels of cortisol being circulated in the body. Cortisol is a hormone that is produced by the adrenal glands. Also called the suprarenal glands, these are endocrine glands that are triangular in shape and located at the top of each…
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