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Geometry and Astronomy:
The need to portray an ideal world of perfect forms and proportions led to the development of geometry by Pythagoras (583-500 B.C.) and Hippocrates of Chios (about 450 B.C.) (Fig.). 'The latter occupied himself with the solution of problems which were unanswered for a long time. such as squaring the circle and doubling the cube. He failed in both. but opened the w;ly to study the geometry ofcurves. Eudoxus (408-355 B.C.) was probably the greatest Greek matliematician and he was able to explain the motion of sun, moon and plancts by means of sets of concentric spheres, each rotatingabout an axis fixed in the one outside it (Fig. 3.12). The model wascrude, and too simple to explain observed facts, even as known at that time. But the sets of actual metal spheres based on this mode provided the basis for most of the astronomical instruments for a long time.
The term physiology -physio meaning native and logos meaning discourse, is a Greek word, a synonym for natural philosophy. As the evolutionary processes progressed, the need
Resuscitation - An Explanation A living person needs the support of "ABC" mentioned below: Airway - clear airway Breathing - normal breathing Circulation - proper bl
Does the frequencies of the colors of the light increase from red to violet?
Labels and Packaging's : In order to minimise the hazards associated with using a particular substance it is necessary to know what the precise dangers are. The label on the conta
Explain the Anti-Diuretic Hormone (ADH) It is secreted by the pituitary gland and controls the ability of water to pass through the cells in the walls of the collecting ducts.
does air is conductor
Explain Protein Reserve - Functions of Plasma Proteins Plasma proteins provide a reserve, which can be drawn upon for vital functions in the situations of starvation and protei
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What is Activation offatty acids ? Fatty acids cannot undergo oxidation in the form in which they are normally present in the body. They must be converted into a form which ca
Advantages of water in chemical weathering Water is an essential factor of chemical weathering and when it contains dissolved salts and acids it is all the more effective. It
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