1. Democritus Of Abdera An short introduction to this ancient atomistic thinker. http://www.geocities.com/lucretius5978/biography/democritus.html

Democritus of Abdera DhmokritoV apo Abdhra Circa 460 B.C.- 370 B.C. Democritus was born in the city of Abdera which is located in the region of Greece known as Ionia. He and his teacher Leucippus ( LeukippoV ) are believed to have developed the atomic theory which turned out to be strikingly accurate in a sense. In his theory, he postulated the existance of particles called " Atomos " or Atomos which is a Greek word meaning "indivisible". While the particles which are now named after this word, atoms, are certainly not indivisible, energy can be emitted or absorbed only in discrete units called quanta. The field of physics that describes this quantification of energy is appropriately named quantum mechanics. Since the energy never exists at a state in between these quanta, these energy quanta are like the atoms of Democritus in that they are indivisible. He wrote extensively on many subjects, but few of his works remain. He also made many contributions to mathematics which, had they not been lost, may have led to the development of calculus more than a millenium earlier than the time of Sir Isaac Newton. Some of these are on the subjects of numbers, geometry, mappings, irrational numbers, and perhaps most importantly, tangencies. It was the problem in mathematics known as the tangent line problem which led to the development of the most fundamental ideas in calculus. With calculus you can find the slope of a curved line at any point (being curved, it is different at every point) with a process called differentiation. This is done by finding the slope of the tangent line to the curve at that point (A tangent line is a line that meets that curve at exactly one point without crossing it.) using secant lines (crossing the curve at two points) to successively approximate the tangent line.

2. Democritus democritus of abdera is best known for his atomic theory but he was also an He then returned to Abdera, where he remained. Democritus himself wrote (but http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Democritus.html

Democritus of Abdera Born: about 460 BC in Abdera, Thrace, Greece Died: about 370 BC Click the picture above to see four larger pictures Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Version for printing 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. Democritus certainly visited Athens when he was a young man, principally to visit Anaxagoras , but Democritus complained how little he was known there. He said, according to Diogenes Laertius writing in the second century AD [5]:- I came to Athens and no one knew me. Democritus was disappointed by his trip to Athens because Anaxagoras , then an old man, had refused to see him. As Brumbaugh points out in [3]:- How different he would find the trip today, where the main approach to the city from the northeast runs past the impressive "Democritus Nuclear Research Laboratory". Certainly Democritus made many journeys other than the one to Athens.

3. Democritus [Internet Encyclopedia Of Philosophy] Democritus was born at Abdera, about 460 BCE, although according to some 490. His father was from a noble family and of great wealth, and contributed http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

4. Poster Of Democritus democritus of abdera. lived from about 460 BC to about 370 BC. Democritus is bestknown for his atomic theory but he was also an excellent geometer. http://www-groups.dcs.st-and.ac.uk/~history/Posters2/Democritus.html

Democritus of Abdera lived from about 460 BC to about 370 BC Democritus is best known for his atomic theory but he was also an excellent geometer. Find out more at http://www-history.mcs.st-andrews.ac.uk/history/ Mathematicians/Democritus.html

5. Democritus Of Abdera democritus of abdera DhmokritoV apo Abdhra Circa 460 B.C. 370 B.C. Democritus was born in the city of Abdera which is located in the region of http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

6. Democritus Article on the atomist philosopher Democritus, including quotes and what little we know about his life. http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Democritus.html

Democritus of Abdera Born: about 460 BC in Abdera, Thrace, Greece Died: about 370 BC Click the picture above to see four larger pictures Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Version for printing 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. Democritus certainly visited Athens when he was a young man, principally to visit Anaxagoras , but Democritus complained how little he was known there. He said, according to Diogenes Laertius writing in the second century AD [5]:- I came to Athens and no one knew me. Democritus was disappointed by his trip to Athens because Anaxagoras , then an old man, had refused to see him. As Brumbaugh points out in [3]:- How different he would find the trip today, where the main approach to the city from the northeast runs past the impressive "Democritus Nuclear Research Laboratory". Certainly Democritus made many journeys other than the one to Athens.

7. Cls 189 Short Web Paper The Atomists Leucippus of Miletus and democritus of abdera http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

8. Democritus Biography was that EVERYTHING, including thinking itself, was made of atoms and their motions. Democritus, like Protagoras, was born in Abdera, Thrace. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

9. Democritus Of Abdera democritus of abdera. Born 460 BC in Abdera, Thrace, Greece Died about 370 BCEven though he was an outstanding geometer, he is best known for his atomic http://www.geocities.com/joek_bm/images/matematica/biografias/democritus.htm

Democritus of Abdera Born: 460 BC in Abdera, Thrace, Greece Died: about 370 BC Even though he was an outstanding geometer, he is best known for his atomic theory of matter, which consisted of an elaborate and systematic perspective of the physical world. With his theory, he could explain all changes that occur in the world as changes in motion of atoms or in the way the atoms were arranged. Also, he was one of the greatest philosophers of physical science among the ancient Greeks, believing that nature behaves like a machinea highly complex mechanism. As for his mathematical contributions, little is known other than the titles of some unsurviving texts: On numbers On geometry On tangencies On mappings , and On irrationals . It is also known that he did contribute to applied mathematical problemsdealing with the volume of solids. He was also interested in physics, ethics, and law. You can find more about Democritus here Page created and maintained by Jorge Cunha

10. Democritus democritus of abdera http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

11. Democritus Of Abdera democritus of abdera , philosopher (~460 BC ~360 BC), he argued that it isimpossible for matter to be divisible ad infinitum, and that matter at the http://nanoatlas.ifs.hr/democritus_of_abdera.html

Democritus of Abdera Related items: Richard P. Feynman Atom Democritus of Abdera , philosopher (~460 B.C. - ~360 B.C.), he argued that it is impossible for matter to be divisible ad infinitum , and that matter at the fundamental level consists of indivisible, impenetrable and homogeneous pieces he called atoms atomon meaning indivisible). He was thus able to explain the changes in the world that surrounded him as due to variations in the motion of atoms and in their arrangement. According to Democritus, the whole Universe is composed of atoms of different 'sizes, weights, and shapes' and Void, which is empty space between atoms. Generated on 11th of January, 2005 Dictionary main page

12. Democritus Biography of democritus of abdera (BCBC) http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

13. Democritus Of Abdera (ca. 470-ca. 380 BC) -- From Eric Weisstein's World Of Scie democritus of abdera (ca. 470ca. 380 BC). Greek philosopher who was a pupil ofLeucippus and extended his mentor s atomic theory. http://scienceworld.wolfram.com/biography/Democritus.html

Branch of Science Philosophers Nationality Greek Democritus of Abdera (ca. 470-ca. 380 BC) Greek philosopher who was a pupil of Leucippus and extended his mentor's atomic theory. He tried to account for the observable properties of matters in terms of the shapes of their constituent atoms, which he believed to be eternal, indestructible, and unchanging. He also pursued studies in physics, astronomy, zoology, botany, and medicine. In another example of amazing insight, he maintained that the Milky Way galaxy was a conglomeration of stars. Leucippus Additional biographies: MacTutor (St. Andrews) Bonn Greek and Roman Science and Technology

14. PHILOSOPHERS - DEMOCRITUS OF ABDERA democritus of abdera (c. 460370) http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

15. Democritus Of Abdera And Other Atomists Greek 10 Drachma Coin with democritus of abdera and the atom, before the EUROreplaced the Drachma. By convention sweet, by convention bitter, by convention http://www.mlahanas.de/Greeks/Atoms.htm

Democritus, Epicurus and Aristotle on atoms Michael Lahanas The task is, not so much to see what no one has yet seen; but to think what nobody has yet thought, about that which everybody sees. It is scarcely an exaggeration to say that even in 1900 the only new idea to Leucippus's theory was that each chemical element was identified with a separate atomic species. David Park, The How and the Why: An Essay on the Origins and Development of Physical Theory. Princeton NJ: Princeton University Press, 1990 Greek 10 Drachma Coin with Democritus of Abdera and the atom, before the EURO replaced the Drachma By convention sweet, by convention bitter, by convention hot, by convention cold, by convention colour: but in reality atoms and void (kenon) Democritus Leucippus and Democritus. Democritus is said to have discovered the atoms, (a-tomos which is a Greek word for not divisible ), around 430 BC. He was a student of Leucippus (and maybe Philolaus ). Democritus and Leucippus are mentioned together as having discovered the atoms but we know very little about Leucippus. Some (Epicurus) saids that Leucippus did not exist and that this name was used by Democritus as a pseudonym. However this is very probably not true. The work The Great World System is considered to be a work of Leucippus in which the atoms and void are postulated. Although Democritus wrote many books almost nothing than a few Fragments survived and what we know are comments from Aristotle and others. How can Democritus and Leucippus discover atoms without being able to see atoms? Even at the times of

16. Democritus Van Abdera Democritus. Democritus (460 370 v.C.) is voornamelijk bekend vanwege zijn atoomtheorie die hij samen met zijn Leucippus bedacht heeft. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

17. The Atomistic Philosophy Of Leucippus And Democritus Leucippus and Democritus Abdera, 460 370 BC http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

18. Democritus Of Abdera (c. 470-400 B.C.) democritus of abdera (c. 470400 BC) Democritus was the first to claim thatthe Milky Way is made up stars. See also ancient philosophy, related to the http://www.daviddarling.info/encyclopedia/D/Democritus.html

Return to The Worlds of David Darling INDEX LATEST NEWS ARCHIVE ... Z entire Web this site Democritus of Abdera (c. 470-400 B.C.) Greek philosopher who developed the ideas of atomism , originally put forward by Leucippus . In the hands of Epicurus and Lucretius , atomistic philosophy was popularized and used to argue for the existence of extraterrestrial life. Democritus was the first to claim that the Milky Way is made up stars. See also ancient philosophy, related to the possibility of extraterrestrial life GREEK ASTRONOMY BACK TO TOP var site="s13space1234"

19. Democritus Of Abdera democritus of abdera Born 460 BC in Abdera, Thrace, Greece Died about 370 BC Even though he was an outstanding geometer, he is best known for http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

20. PHILOSOPHERS - DEMOCRITUS OF ABDERA Democritus was born in Abdera in the north of Greece. Very little is known ofhis life, although he is said to have travelled to Egypt and Persia. http://www.creatorix.com.au/philosophy/t06/t06f08.html

DEMOCRITUS OF ABDERA (c. 460-370) "By convention sweet and by convention bitter, by convention hot, by convention cold, by convention colour: in reality atoms and void." (FrB125 - in "Sextus Empiricus") Democritus was born in Abdera in the north of Greece. Very little is known of his life, although he is said to have travelled to Egypt and Persia. Diogenes Laertius quotes him as saying: "I came to Athens and no-one knew me." Plato makes no mention of him but Aristotle credits him with the originating of the theory of Atomism. He wrote well over fifty books on subjects as various as ethics physics , mathematics, music, literature, logic and language. Yet very few genuine fragments of his work survive and his long lasting effect on western science and philosophy has been via Epicurus Where the Eleatic school ( Parmenides Zeno ) argued that reality was one and indivisible, and not-being was impossible, Democritus envisaged many indivisible particles or atoms in constant motion in a void. For him, both being and non-being together were necessary to explain the world of change and motion, generation and decay as it is experienced. Atoms moving in the void were infinite in number, and varied in size and shape. Each was indivisible but capable of connecting with others to form larger entities - the visible bodies of the world. Democritus explained sense perception and thought in terms of different shapes, interactions and amassing of atoms. The soul and fire atoms, for instance, were spherical and the most mobile and penetrative. Objects of perception are thought and believed to exist, but they do not exist in truth - only atoms and void do.

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