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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.
PROCEDURE Locate the gas cylinders available in the lab. Note the colour of the cylinder (to a maximum of two and exclude the LPG) and bands on it (if any) and record them i
What are Fatty acids Fatty acids are grouped into two classes, saturated and unsaturated fatty acids. The terms 'saturated' and 'unsaturated' fatty acid may not be new to yo
what is mode of nutrition in vulture?
Amino acids are the building blocks of proteins. All proteins consist of a sequence of amino acids, which are compounds containing an amino group (-BIB) and a carhoxyl gro
Objectives After you have completed this exercise, you should be able to: 1. Enlist all the fire extinguishers available in the labs and relate them to the type of fire
Sate about the Soil water potential Electrical energy, potential energy and kinetic energy together are referred to as free energy or the energy status of water. The difference
Explain Saliva - External Defence Mechanism Saliva contains microorganisms which are not the normal inhabitants. Dead microbes are passively flushed by the saliva and are swall
Explain the Transport properties of Loop of Henle The loop of Henle, as shown in Figure, has a descending limb and an ascending limb. As the filtrate moves down the loop of Hen
a) Name the primary minerals present in an igneous rock. a ) Quartz (SiO2), feldspars, amphiboles, pyroxenes and micas are the most common primary minerals in igneous rock
Explain the Transfusion of Blood Blood has been considered as the elixir of life. However, in ancient times, patients were bled to get rid of their foul fluid. Later, as blood
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