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Air Quote by Isaac Newton

“[1.] And first I suppose that there is diffused through all places an aethereal substance capable of contraction & dilatation, strongly elastick, & in a word, much like air in all respects, but far more subtile. 2. I suppose this aether pervades all gross bodies, but yet so as to stand rarer in…” quote by Isaac Newton
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“[1.] And first I suppose that there is diffused through all places an aethereal substance capable of contraction & dilatation, strongly elastick, & in a word, much like air in all respects, but far more subtile. 2. I suppose this aether pervades all gross bodies, but yet so as to stand rarer in their pores then in free spaces, & so much ye rarer as their pores are less ... 3. I suppose ye rarer aether within bodies & ye denser without them, not to be terminated in a mathematical superficies, but to grow gradually into one another.”

Isaac Newton

About This Quote

Source Manuscript: Correspondence on Aether Theory, 1685

Newton speculates about a subtle, elastic substance filling space, varying in density between pores and free space, suggesting a complex, pervasive medium.

In simple terms: He proposes a fine, elastic medium filling space, denser in some areas.

Key Takeaway

Consider the role of unseen forces in physics.

Themes

science philosophy metaphysics

Mood

curious skeptical

Type

historical analytical

When to use this quote

  • theoretical physics
  • philosophical inquiry
  • educational curricula
  • science communication

Key Concepts

aether theory continuum mechanics historical physics

Questions to Reflect On

  • What can we learn from outdated scientific theories?
  • How do we test unseen phenomena?
A Different Perspective

Aether was later disproven, showing limits of speculative models.

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