Definition:Philosophical Element/Fire
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Definition
Fire was one of the original four elements that were postulated by the Pythagoreans to compose the Universe.
It had its natural place outside the sphere of air.
Sources
- 1966: Isaac Asimov: Understanding Physics ... (previous) ... (next): $\text {I}$: Motion, Sound and Heat: Chapter $1$: The Search for Knowledge: The Greek View of Motion
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $4$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $4$