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
principle of EDTA..

physical features of arizona

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

Explain the Mucous Membrane This layer is lined by the epithelial cells. Parts of the tract which are subject to mechanical injury, the layer consists of stratified squamous ep

the structures that makes up a cell are called

why does sedimentary rock form fossils

Explain the Discovery of Cell Let us study here about the scientists who played a pioneer role in discovering the basic component of any living organism -the cell. Robert Hooke

Explain the Intercostal Muscles Look at Figure Can you spot the intercostal muscles? Yes, there are 11 pairs of intercostal muscles. The intercoastal muscles are the muscles

Explain Bile - External Defence Mechanism It is an alkaline secretion of the liver, which checks the growth of foreign bacteria on the partially digested food.

Explain the Submucous Layer This layer consists of loose areolar connective tissue. There are lymph vessels, plexuses of blood vessels and nerves. The nerve plexus is meissner'