PSY 005 Lecture 16:
18 Aug 2020
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Document Summary
Scientific revolution central time 17th century, takes place between renaissance & 18th century. Enhance status of science in the society, includes galilei, descartes, newton. Julius caesar underestimated length of year replaced 1583 by gregorian calendar. To make that one right, many astronomic calculations & observations were made. Geocentric model model of universe in which earth is the centre. Described by aristoteles & elaborated by ptolemy in 16th century. Problem movements of wandering stars (planets), displacement wasn"t fixed. Epicycles small cycles made by planets in addition to main orbit around the earth (ptolemy) Heliocentric model model of universe in which sun is the centre and was the first in universe. Moon orbit the earth, all orbit the sun, ordered planets by distance from the sun. Earth need one year to around the sun. Earth spun around its axis within one day causing day/night & movement of fixed stars. Made his model 1514 but just available for few friends.
