Luke Edition Elective (3-5) Section 1 "The Discovery of Electronics and the Model of Thomson" ppt Aristotle in Ancient Greece believed that the nature of all things is the four "elements" of earth, water, fire and air The fifth element, ether, constitutes the ancient Greek scholar Democritus and others who believe that there are one or more tiny entities in the universe. This entity is called an "atom". Rejoin or disperse in different ways.
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