Kepler''s laws of planetary motion, Science

Kepler's  Laws of Planetary Motion:

Further support to the heliocentric model came from the work of Johannes Kepler at around the same time as Galileo's observations. Kepler, a German astronomer, was  

 

703_Keplers  Laws of Planetary Motion.png

trying to work out a theoretical model which explained all observations of planetary motion. The most accurate observations of apparent planetary positions had been made bv Tvcho Brahe.  

Brahe invited Kepler to work with him. He  recommended that Kepler study the planet Mars because its motion seemed most anomalous, most difficult to reconcile with an orbit made of  circles. Further, planets in circular orbits ought to move with constant speed. But Kepler found that their speeds changed with their distance from the Sun. After years of  trial and error, he found that the only explanation of  the observed movement of Mars was that its orbit was an ellipse with the Sun at one of  its foci. Thus, the idea of  circular orbits was abandoned. Kepler eventually succeeded in explaining Brahe's  observations which could all be expressed simply, in  the form of three law$ of  planetary motion.

Kepler's laws removed the main objection of  the Copernican model, that this model could not give an accurate description of  the observed path of  the planets. These laws also led to the rejectioli of Pythagorean-Platonic  view of  the heavens showing only perfect circular motions, which even Copernicus had retained. By.the  end of  the seventeenth century the heliocentric model of  the universe came to be accepted generally. Interestingly,  the physical proof  of  the movement of  the Earth came when  it was no longer necessary, because by  then everybody had already accepted that the Earth moved around the Sun. 

Posted Date: 9/28/2012 1:09:28 AM | Location : United States







Related Discussions:- Kepler''s laws of planetary motion, Assignment Help, Ask Question on Kepler''s laws of planetary motion, Get Answer, Expert's Help, Kepler''s laws of planetary motion Discussions

Write discussion on Kepler''s laws of planetary motion
Your posts are moderated
Related Questions
The Pure Planet Company † operates a recycling center that collects four types of plastic materials, then treats them so that they can be interfused-treating and interfusing are s


Definition of a rock and the difference between a rock and a mineral ? A rock is a mixture of one or more minerals. There are many kinds of rocks, and we will learn about them

RADIATION HAZARDS : We are sure that you would have studied about electromagnetic radiation during your studies at the school. You would recall that in electromagnetic radiatio

what is the speed and velocity of a car that travels 32 meters to the east and 12 meters in the same direction? the total time of travel in 3.0 seconds

explain what ausubel''s theory say about learning


Question 1 What is an index? Explain physician's index with the help of examples 2 How to use the Electronic Medical Record for Prior authorization and SOAP technique 3 G

Q. List the methods of oil extraction? The methods of oil extraction are: (i) traditional method (ghani); (ii) improved methods, such as hydraulic pressing, screw pressing, pre

what does homogenious mean?