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
Sketch the water surface profiles for the cases below. Label the normal and critical depth lines as well as all of the water surface profiles. In part (b), the conjugate de

Explain Intermittent positive pressure lung inflation When medulla is affected, the cough reflex may be lost. To prevent secretions entering the lungs, a tube is inserted into

1. A patient with Chronic Kidney Disease (Stage IV), who makes very little urine, presents to the hospital with severe nutritional deficiencies.  You are starting her

Define Creatine in Urine Normal urine contains little or no creatine. Some may be found during menstruation, pregnancy and childhood. Urine creatine is considerably increased i

Thiamin (vitamin B1) Thiamin was  first  isolated  in  1926 from rice polishing by  Jansen  and Donath.  Its empirical formula was established  in  1931  by  Windaus  and  co-w

What reacts with zirconium/

What is a floodplain? If a river tends to flood, the most practical solution might be to designate a more or less flat area along the river as the "floodplain". This Area is p

Explain the Parathyroid Glands The parathyroid and thyroid glands are neighbours in the neck. You would realize that parathyroid glands are the small glands that lie behind the

what is a engineering physics about these substances

Discuss main factors that influence mass movements. Ans) Things as if climate and food availability will make a big dissimilarity if it is too cold, too dry then people will re