Answers are grounded in this paper and cite their sources.
The theory of a method for measuring small amplitudes of vibration, due originally to Thomas and Warren, is developed, and experiments confirming it are described. The possibility of using the method for producing a standard source of sound is discussed.
No takes yet. Share an insight, caveat, or question.
D. H. Smith (1945) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: