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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.
Cis-isomer : Both hydrogen atoms located on the same side of the double bond.
Moving loads on a trolley : Loads on a trolley, are normally moved through pulling or pushing process. During the pulling process, the whole strain is to be taken by the back musc
1.) Imagine that you are a particle inside an ice cube. You were placed into a glass of lemonade to cool it down. The lemonade has now been drunk and you have been left in the glas
How to make a devil diver (Cartesian diver) Find a tall glass jar with a quite wide mouth. Wrap a few turns of copper wire about the thin part of the rubber bulb from a medicin
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Question 1: (a) Define the following terms: normal baseline, internal waters and territorial sea. (b) List four responsibilities of the coastal state within the territoria
How to mount fossils If you occur to live in a locality where fossils are plentiful, it will be interesting to have the peoples make a fossil collection for the school museum.
Explain the Vasomotor center - Feature of Medulla The vasomotor center is found in medulla. It controls diameter of the blood vessels especially the ones which have smooth musc
What is Soil Taxonomy The concept of soils as natural bodies was first developed by Russian soil scientist V.V Dokuchaev and his associates when they noted the relationship p a
The Twenty Point Programme and Communication : In view of what we have discussed above, it may be useful to have a look at the Twenty Point Programme (1986), which the Governme
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