Find  >  
      Select  >  WhoWhatWhenWhereWhich
         
Timeline
   

Item

         
  More info About: Democritus, Atomic Theory
  Democritus, Atomic Theory  >  new window

Democritus of Abdera is best known for his atomic theory but he was also an excellent geometer. Very little is known of his life but we know that Leucippus was his teacher. Although little is known of his life, quite a lot is known of his physics and philosophy. There are two main sources for our knowledge of his of physical and philosophical theories. Firstly Aristotle discusses Democritus's ideas thoroughly because he strongly disagreed with his ideas of atomism. The second source is in the work of Epicurus but, in contrast to Aristotle, Epicurus is a strong believer in Democritus's atomic theory. This work of Epicurus is preserved by Diogenes Laertius in his second century AD book.

Certainly Democritus was not the first to propose an atomic theory. His teacher Leucippus had proposed an atomic system, as had Anaxagoras of Clazomenae. In fact traces of an atomic theory go back further than this, perhaps to the Pythagorean notion of the regular solids playing a fundamental role in the makeup of the universe. However Democritus produced a much more elaborate and systematic view of the physical world than had any of his predecessors.


        More on this Website  >  new window
• http://www-groups.dcs.st-and.a ... ians/Democritus.html

Related LinksAdd URL  >  new window
http://en.wikipedia.org/wiki/DemocritusEdit
       
       
 
  Aristotle, Greek Philosopher
He studied (367-347 B.C.) under Plato and later (342-339 B.C.) tutored Alexander the Great at the Macedonian court. In 335 B.C. he opened a school in the Athenian Lyceum....
         
 
  Epicurus, Pleasure is the Highest Good
Epicurus was born in the Greek colony on Samos, but spent most of his active life in Athens, where he founded yet another school of philosophy. At "the Garden," Epicurus...
         
 
  John Dalton, First Useful Atomic Theory
John Dalton developed the first useful atomic theory of matter around 1803. In the course of his studies on meteorology, Dalton concluded that evaporated water exists in...
         
 
  J. J. Thomson, Discovers the Electron, 1897
In 1897 in Cambridge, J J Thomson experimented on cathode rays. In Britain, physicists had argued these rays were particles, but German physicists disagreed, thinking the...
         
 
  Max Planck, Inventor of Quantum Theory
Max Karl Ernst Ludwig Planck was a German physicist who is considered to be the inventor of quantum theory. In 1899, he discovered a new fundamental constant, which is na...
         
 
  Rutherford, Father of Nuclear Physics
Ernest Rutherford, 1st Baron Rutherford of Nelson OM PC FRS, widely referred to as Lord Rutherford, was a chemist (B.Sc. in chemistry and geology 1894, Canterbury College...
         
 
  Albert Einstein, Relativity Theory - 1905
Einstein's contributions to physics began in 1905 with three major results: the explanation of Brownian motion in terms of molecules; the explanation of the photoelectric...
         
 
  Niels Bohr, Quantum Theory of Matter
Niels Henrik David Bohr was a Danish physicist who made fundamental contributions to understanding atomic structure and quantum mechanics, for which he received the Nobel...
         
 
  Harry Truman, 33rd President USA
Harry Truman was president of America (1945-1952) after the death of F.D. Roosevelt in April 1945. Harry Truman gave the order for the atomic bombs to be dropped on Hiros...
         
 
  AtomicArchive.com
Explore the History of the Atomic Bomb: atomic bomb, atomic, nuclear, weapons, nuclear weapons,Hiroshima, Nagasaki, Trinity Test, Oppenheimer, Fermi, Szilard, atoms, nuc...
         
 
  Werner Heisenberg, Uncertainty Principle
Werner Heisenberg was one of the greatest physicists of the twentieth century. He is best known as a founder of quantum mechanics, the new physics of the atomic world, an...
         
 
  Hirohito, 124th Emperor of Japan
Hirohito, the Showa Emperor, reigned over Japan from 1926 to 1989. He was known in the West by his given name Hirohito (he had no surname). He was the 124th Emperor of Ja...
         
 
  Oppenheimer, Inventor Atomic Bomb
Upon hearing of discovery of fission in 1939, J. Robert Oppenheimer immediately grasped the possibility of atomic bombs. In 1941, he was brought into the atomic bomb proj...
         
 
  Richard P. Feynman
Richard P. Feynman was awarded the Nobel Prize in Physics in 1965 for fundamental work in quantum electrodynamics, with deep-ploughing consequences for the physics of ele...
         
 
  World War 2, WW2
World War 2 started nearly 64 years ago, when Germany invaded Poland without warning at 4.45am on the 1st September 1939. By the evening of the 3rd September, Britain and...
         
 
  Kim Jong-il, Leader of North Korea
Kim Jong-il is the leader of Democratic People's Republic of Korea, a position he has held since 1994. Officially he is the Chairman of the National Defense Commission of...
         
 
  Atom Bomb on Hiroshima, WW2
On 6th August 1945, a B29 bomber (Enola Gay) dropped an atom bomb on Hiroshima. It has been estimated that over the years around 200,000 people have died as a result of t...
         
 
  Chernobyl, Nuclear Power Accident
The disaster that occured at a nuclear power plant in Chernobyl in the former USSR (now Ukraine) plant on April 25th 1986 is an example of the devastation that can occur...