Chilblains


Chilblains are the bluish-purple swollen discolorations that occur most commonly on extremities that have bee: exposed to the cold, such as the fingers, toes, ears (lobes mainly), and possibly end of the nose. It is due to altered circulation of the blood. Cold causes superficial blockage. Chilblains result from exposure to cold vessels to constrict….
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Telescope Facts


Optical telescopes magnify distant objects by using lenses or mirrors to refract (bend) light rays so they focus (come together). Other telescopes detect radio waves, X-rays (see X-rays), or other kinds of electromagnetic radiation. Refracting telescopes are optical telescopes that use lenses to refract light rays. Reflecting telescopes are optical telescopes that refract light rays…
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Eagle Facts


Eagles and hawks are among 280 species of raptor (bird of prey). The group also includes kestrels, falcons, goshawks, buzzards and vultures. Most birds of prey are hunters that feed on other birds, fish and small mammals. Most birds of prey are strong fliers, with sharp eyes, powerful talons (claws) and a hooked beak. Birds…
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Epiphyte Facts


Also called air plants, Epiphyte plants are those that do not root in the soil but grow on other plants (mainly trees). Depending on their habitat, they may also grow on buildings and cables or wire. They depend on the things they grow on for support but epiphytes are not parasitic since they do not…
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Bible Study Leviticus


Author: Moses Date: c. 1400 B.C. or c. 1200 B.C. The Book of Leviticus served as a handbook for the ancient priests of Israel. Much of it is devoted to specific regulations concerning offerings, sacrifices, ritual purity, ordination, feasts, and festivals. There are also regulations that go beyond the religious institutions and that deal with…
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Corneal Ulcers


What are Corneal Ulcers? Ulcers can occur on the cornea, often causing pain, blurring of vision and discomfort from light. Often they are preceded by some form of trauma. Urgent treatment by the doctor (usually an eye specialist) is essential. Most ulcers are responsive to early treatment, but the longer the delay, the less chance…
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Starfish Facts


Despite their name starfish are not fish, but belong instead to a group of small sea creatures called echinoderms. Sea urchins and sea cucumbers are also echinoderms. Starfish have star-shaped bodies and are predators that prey mostly on shellfish such as scallops and oysters. A starfish uses its five strong arms to prize open its…
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Astronomy Facts


Astronomy is the study of the night sky – from the planets and moons to the stars and galaxies. Astronomy is the most ancient of all the sciences, dating back tens of thousands of years. The Ancient Egyptians used their knowledge of astronomy to work out their calendar and to align the pyramids. The word…
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Carbon Monoxide Poisoning


Carbon monoxide poisoning is likely to occur wherever there is fire or smoke, especially in enclosed places in poorly ventilated rooms that are heated by wood-burning stoves or kerosene-type space heaters in closed garages where gasoline engines are running in cars that have faulty exhaust systems Carbon Monoxide Poisoning Symptoms Early signs of carbon monoxide…
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Jesus Washes the Disciples Feet Story


Luke 22:14, 24-30 That night Jesus and His twelve closest disciples broke the bread and the wine of Passover and remembered how God had saved His people in Egypt. He had destroyed the terrible pharaoh who had forced them into slavery. Jesus sat quietly at one end of the table while a few of the…
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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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Renal Dialysis


Two types of machines are available, and they are set with alarms that sound loudly if faults develop. Ideally, efforts are made so as to make the lifestyle as near to normal as possible. Some dialysers may be used at night when the patient is asleep; three 10-hour spells weekly being adequate. Other types are…
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Eye Care


The eye is a marvel of engineering. Each eye is a compact but exquisitely sensitive biological camera that focuses images of the external world onto the retina, a ten-layer cellular membrane directly connected to the brain through the optic nerve. Before arriving at the retina (located at the back of the eyeball), light must pass…
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Crying


Generally speaking, babies, as they become older, are placid in nature, and tend to be peaceful and happy. So, if baby starts crying for no obvious reason, is there usually a cause for it? Babies usually cry when they are in pain or uncomfortable. Wet or soiled nappies are a common cause of discomfort. Babies…
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Bible Study Numbers


Author: Moses Date: c. 1400 B.C. or c. 1200 B.C. The Book of Numbers narrates Israel’s wide-ranging experiences in the wilderness. Jewish scholars from ancient times until today have referred to it by the title “In the Wilderness,” which is the first word in the Hebrew text. Others refer to it as “Numbers” because the…
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German Measles


German measles are produced by a virus, but a different one from the ordinary measles. Because a skin rash occurs a similar name has been given to the condition. It is commonly known by its technical name rubella. It is invariably a mild illness, seldom causing troublesome outward symptoms, is not highly contagious, and is…
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Choosing Your Own Flower Arrangements


When choosing your own flower arrangements it is important to remember that the displays selected should adequately match the look and feel of each room. The best way to do so is to take into consideration the function of each. Since the functions differ so too should the displays vary to ensure that those chosen…
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Kiwi Facts


There are three species of kiwi, found only in New Zealand. All are flightless birds that live in burrows. The female dwarf cassowary, or moruk, is an extremely dangerous bird and will attack anything that comes near its nest with its 10-cm long claws. The three species of cassowary live in rainforests in New Zealand…
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Oxytocin Challenge Test


Oxytocin Challenge Test (OCT) is done in the hospital to help determine how well the baby will undergo the stress of labor. The OCT is also known as the Contraction Stress Test. Oxytocin is a medication that causes uterine contractions. While reclining on a 45-degree angle, the woman is given oxytocin intravenously until she has…
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