William Thomson, 1st Baron Kelvin Quote

There must be something in this molecular hypothesis and that as a mechanical symbol it is certainly not a mere hypothesis, but a reality.


Baltimore Lectures on Molecular Dynamics and the Wave Theory, of Light, Lecture I (p. 15)


There must be something in this molecular hypothesis and that as a mechanical symbol it is certainly not a mere hypothesis, but a reality.

There must be something in this molecular hypothesis and that as a mechanical symbol it is certainly not a mere hypothesis, but a reality.

There must be something in this molecular hypothesis and that as a mechanical symbol it is certainly not a mere hypothesis, but a reality.

There must be something in this molecular hypothesis and that as a mechanical symbol it is certainly not a mere hypothesis, but a reality.