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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.
Depletion of Ozone Layer: Since the last decade or so, there is concern about the possible reduction in the ozone layer surrounding the earth. Now the question arises, what h
What is clay minerals The fraction of secondary minerals is often mixed with primary minerals and oxides of iron, aluminium and silicon and has a size of less than 0.002
what is postcranial
Explain the Digestion of Food Salivary amylase or ptyalin acts on cooked starches (polysaccharides) and changes them into maltose as shown herewith. Boiled starch → soluble
How the Acid/Base Balance is maintained in an Acid Diet? Let us first see how the acid/base balance is maintained in an acid diet. The sequence of steps involved includes: 1
Moisture evaporates from soil Fill a flower pot with moist soil and place it on a pair of scales. Either balances the pot of soil with weights or observe its weight. Observe it
Rutherford atomic model
Housing: Housing is an important component of healthy environment. Probably you are aware that housing conditions for the vast majority of people in India are not up to the s
how foods are digested?
CAN YOU EXPLAIN THE FILTRATION METHOD OF PURIFICATION OF WATER
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