Concept

Gas

Overview

fundamental state of matter in which constituent particles are widely separated with weak intermolecular bonds

Overview adapted from Wikipedia (CC BY-SA 4.0; see the article history for authors).

Possible passages

Found by search and not yet checked by a person; they may only mention the idea in passing.

Admit this, and it follows that when a gas is under pressure what prevents it from collapsing is not the incompressibility of the separate molecules, which are under no pressure at all, since they do not touch, but the pounding of the molecules against the piston.
Charles S. Peirce, Chance, Love, and Logic
Names Gas several times; states what Gas is.
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Before going further, we must look at the problem from another angle. Is the milky way thus constituted truly the image of a gas properly so called? You know Crookes has introduced the notion of a fourth state of matter, where gases having become too rarefied are no longer true gases and become what he calls radiant matter. Considering the slight density of the milky way, is it the image of gaseous matter or of…
Henri Poincaré, The Foundations of Science
The chapter “THE MILKY WAY AND THE THEORY OF GASES” is titled for Gas; states what Gas is.
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If anything is to be inferred, either from the Nebular Hypothesis, or from the analogies supplied by the planets, it must be concluded that the outermost part of the solar atmosphere consists of what are called permanent gases--gases that are not condensible into fluid even at low temperatures. If we consider what must have been the state of things here, when the surface of the Earth was molten, we shall see that…
Herbert Spencer, Essays
States what Gas is; names Gas several times.
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Related ideas

Place in the tradition

Part of British philosophy.

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