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The Copernican Revolution:
It was right in the midst of these developments in the fifteenth century, that there came the first major break from the whole system of ancient thought. This was the work of Copernicus, who gave a clear and detailed explanation for the rotation of earth and other planets on their axis and their motion around a fixed sun which was at the centre. This model simplified astronomical calcuhtions, and also made them more precise. In such a model had been proposed by Greek astronomers like Aristarchus many centuries earlier. However, it was not given any importance because it ran counter to the established ideas of those times. This work of Cope~nicus was published in the very year of his death in 1543. Although his book attracted limited attention and there were objections to his model, his work-gave a great boost to further work by Galileo. We will talk about Galilee's work later in Sec. This was the first phase of what we now call the Scientific Revolution. In this phase, the old ways of thought were proving inadequate. By rejecting the old ideas, the men of Renaissance had cleared the grounds for new ideas of the succeeding century. In the use of science for practical purposes too, the Renaissance set the scene for. future developments. From now on science had become a necessity for profitable enterprises, trade and war.
What is the earths core made of? Ans) The outer earth core is liquid and the inner is solid. Both parts are of alloy of two metals - iron and nickel, permitting the rise of the
To show how water rises by capillarity Colour some water in a shallow dish with ink and touch a blotter to the water surface. Observe how the water increases in the blotter.
structure and function of respiratory organs in arthropoda with diagram
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Define the Adrenal Sex Hormone Secretion Regulated The secretion of adrenal androgens by the adrenal cortex is controlled by ACTH. In the discussion above, we have seen how a f
The Copernican Revolution: It was right in the midst of these developments in the fifteenth century, that there came the first major break from the whole system of ancient thou
Describe the structure of the stomach. How is it modified to carry out its functions? How does It compare to that of the fetal pig?
The Copernican Revolution: The Copernican model consisted of the Sun at the centre with the six planets, Mercury, Venus, the Earth with the Moon-round it, Mars, Jupiter and
Define Specific Defence Mechanism In the section on white blood cells, we learnt that whenever a germ or infection enters our body, the WBCs snap to attention and destroy the c
five charactrstic of the contour lines
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