Democritus & Aristotle
by Khyra & Madi
Mrs.Harden, 1st Period

Democritus' Atomic Theory

Democritus made very important discovers in his lifetime, but the greatest of all them was the atom. Atom means "indivisible" in Greek; Democritus called his discovery this because he believed that the Atom could not be broken up into smaller parts. To find the atom he took a seashell and began a simple experiment, which can still be conducted today. Democritus continuously broke the seashell into tiny pieces, breaking them over & over & over again into halves. He did this until he was left with a white powder from the broken seashells, he could no longer break up the shells. Democritus therorized that the shells had tiny little hooks, kind of like Velcro, that kept the pieces together.

-Democritus did not originate the atomic theory, he learned it from Leucippus, his founder.

-The atomic theory was believed to be founded in 450 BC in Greece.

Democritus' exact atomic theory:

1.All matter consists of invisible particles called atoms.

2. Atoms are indestructible.

3. Atoms are solid but invisible.

4. Atoms are homogenous.

5. Atoms differ in size, shape, mass, position, and arrangement.

     -Solids are made of small, pointy atoms.

     -Liquids are made of large, round atoms.

     -Oils are made of very fine, small atoms that can easily slip past each other.

The first structure that Democritus thought of did not have Electrons, Neutrons, or Protons, it was just a blank solid sphere. The image below is today's representation of an atom.

Quick Facts over Democritus

-Democritus was born into a family of Wealth

-He was very close with his father

-He published over 70 books

-He enjoyed travelling & visiting many places

-Born in 460 BC in Abedera, Greece & died at the age of 90 in 370 BC

Aristotle's Theory

Aristotle was trained by the great philosopher Plato, he learned all types of knowledge, including philosophy, science, art, literature, and of course astronomy.

        Aristotle believed that the Earth was round. He determined this belief by arguing that when someone goes from the north or to the south, the person does not see the same positions of the sky in the day or the same stars in the evening.

      Another theory of Aristotle's was that he believed there were five basic elements, while the people during that time period only believed there were four; fire, air, water, & earth. He called this fifth element "aether", this serves as the main course of heavenly bodies. He proposed "aether" as something that couldn’t be combined with other elements or reproduced; it is unchanged, eternal, and has no sort of weight. Aristotle did not believe in the Atomic theory and he taught so otherwise. He thought that all materials on Earth were not made of atoms, but the four elements. Most people followed Aristotle’s idea, causing Democritus’ idea- which was that all substances on Earth where made of small particles called atoms- to be ignored for around 2,000 years! Aristotle's view was finally admitted incorrect and his teachings are not present in today's view of the atom.

        He discovered this between the twelve years his school was opened up for, which opened in 335 BC in Athens.éléments

Facts about Aristotle

-Aristotle was born in 384 BC in Chalkidiki, Greece. He passed away in 322 BC in Chalcis, Greece.

-He studied at Platonic Academy

-He was married to Pythias, whom passed away in 326 BC

-Aristotle started his own school in Athens called the Lyceum.

Citations (MLA Style)

"Aristotle." Bio. A&E Television Networks, 2014. Web. 10 Oct. 2014.

"Aristotle." Aristotle. Web. 11 Oct. 2014. "Aristotle."

"Aristotle (384-322 B.C.E.)." Aristotle. Web. 11 Oct. 2014.

"Democritus" Web Unpublished Date. Anonymous Author.

By, Initiated. "Democritus Biography." Scribd. Web. 19 Nov. 2010.

"Democritus Atom" by JERRY COFFEY on MARCH 22, 2010. Web.

"Aristotle." Philosophy Pages. Web. 30 Nov. 2010.

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