1.

Renaissance was a period of intellectual activity. In the context, write briefly on the impact of Renaissance on Science under the following heads: (a) Progress in astronomy (b) Progress in medicine. (c) Progress in mathematics.

Answer»

(a) Copernicus (AD 1473-1543), held that the earth was round and earth, the moon and other planets moved round the sun in a circle. Later on, German Scientist John Kepler (1571-1630) proved that the earth and the other planets move round the sun not in a circle but in elliptical orbits. Italian Scientist Galileo (1564-1642) invented telescope.

Sir Isaac Newton (1642-1727) discovered the law of Gravitation. 

(b) Great discoveries were made in medical sciences. 

1. Vesalius (1514-1564) wrote a treatise on anatomy. 

2. William Harvey (1578-1657), discovered circulation of blood from heart to all parts of the body and back to the heart. 

3. Paracelsus (1493-1541) proved a close connection between medicine and chemistry. 

4. Cordus (1515-1544) prepared ether from alcohol and sulphuric acid. 

5. Helmontt (1577-1644), discovered carbon dioxide. 

(c) Arabs gave Algebra and numerals to the West. Modern Geometry was made systematic by Desargues (1593-1662). Stevin advocated decimal system of coins, weights and measures.



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