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Democritus & Aristotle - The Beginning of Atomic Theory

Summary of Democritus' and Aristotle's Theories on Atoms

K Broome

on 24 September 2012

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Transcript of Democritus & Aristotle - The Beginning of Atomic Theory

As Told By Democritus and Aristotle
By Kaley Broome, Eleanor Weir, and Rose Casciero Atomic Theory Democritus lived around 460-370 BCE in Greece
He was a desciple to Leucippus, one of those philosophers that never actually did anything important with his life
Created the word atom, which comes from the greek word "atomos," meaning indivisible
He believed that atoms were the building blocks of all matter
He also said that atoms had mass and weren't identical - there were many different shapes and sizes of atoms
Atoms could also move freely in space, and they would also collide and gather into groups of similar atoms Democritus Democritus thought that certain objects were made up of certain atoms. Examples are:
white things = smooth atoms
black things = rough atoms
sweet things = spherical atoms
bitter things = angular atoms
life = small, round, and smooth atoms
soul = smallest particles of air and fire
hard things = many atoms packed close together
soft things = loose atoms The Democritus Atom FunPack:
Now With More Atoms! People were pretty skeptical of Democritus' ideas, but because he was a smart philosopher, they warmed up to said ideas. But his ideas were pretty hard to believe since he had no lab or equipment to back up his ideas.

However, everything changed when the Fire Nation attacked, led by Aristotle! Reception Aristotle refuted all of the claims made by Democritus. He believed that objects were not made of atoms, but 5 different elements.
These elements were:
and ether, a life-giving element
He also said that there were four different qualities to all substances:
and cold Aristotle and The Elements People went crazy for Aristotle's ideas. The revelation of the elements was huge back in the day, and the idea stuck around for thousands of years after Aristotle.
However, no one knew that Democritus' idea of microscopic indivisible particles making up all that we know was the closest to the truth. Reception
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