Thread: On The Square View Single Post
 18-07-2012, 09:27 PM #22 lightgiver Senior Member   Join Date: Apr 2008 Location: Inactive Posts: 36,483 Likes: 237 (190 Posts) Inverse-square law Coulomb's law or Coulomb's inverse-square law is a law of physics describing the electrostatic interaction between electrically charged particles. It was first published in 1785 by French physicist Charles Augustin de Coulomb and was essential to the development of the theory of electromagnetism.Coulomb's law has been tested heavily and all observations are consistent with the law...Newton's law of gravitation resembles Coulomb's law of electrical forces, which is used to calculate the magnitude of electrical force between two charged bodies. Both are inverse-square laws, in which force is inversely proportional to the square of the distance between the bodies. Other researchers had insights into aspects of Coulomb's law before it was published. In 1767 Joseph Priestley of England conjectured that the force between charges varied as the inverse square of the distance. In 1769, Scottish physicist John Robison announced that according to his measurements, the force of repulsion between two spheres with charges of the same sign varied as X-2.06. The dependence of the force between charged bodies upon both distance and charge had been discovered, but not published, in the early 1770s by Henry Cavendish of England, prior to Coulomb's works. Coulomb's law was officially published in 1785 by French physicist Charles Augustin de Coulomb and was essential to the development of the theory of electromagnetism...The scalar form of Coulomb's law is an expression for the magnitude and sign of the electrostatic force between two idealized point charges, small in size compared to their separation. Coulomb's law holds even within the atoms, correctly describing the force between the positively charged nucleus and each of the negatively charged electrons. This simple law also correctly accounts for the forces that bind atoms together to form molecules and for the forces that bind atoms and molecules together to form solids and liquids...Generally, as the distance between ions increases, the energy of attraction approaches zero and ionic bonding is less favorable. As the magnitude of opposing charges increases, energy increases and ionic bonding is more favourable...Lao and Walter Russell wrote the book Atomic Suicide? as a warning against the misuse of nuclear power through the proliferation of nuclear power plants. According to Walter Russell, the increasing heat and pressure generated on the planet by the increasing use of nuclear energy would eventually cause major global changes of a catastrophic nature...Newton's law of universal gravitation states that every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them...Newton's law has since been superseded by Einstein's theory of general relativity, but it continues to be used as an excellent approximation of the effects of gravity... http://www.davidicke.com/forum/showp...2&postcount=45 http://www.davidicke.com/forum/showp...postcount=1311 Last edited by lightgiver; 18-07-2012 at 11:55 PM.