Some Physics on Sound, Engines
“Loudspeaker enclosures often use the Helmholtz resonance of the enclosure to boost the low frequency response.”
“Now you might think that the pressure increase would just be proportional to the volume decrease. That would be the case if the compression happened so slowly that the temperature did not change. In vibrations that give rise to sound, however, the changes are fast and so the temperature rises on compression, giving a larger change in pressure.”
Wikipedia article on how it’s used in modern cars as a mild form of forced induction.
Gotta love learning new stuff.
will said,
November 16, 2004 @ 2:08pm
nothing like reinforcement from Mother Nature.
Jennifer said,
November 28, 2004 @ 4:30pm
Best friend–I have a message from a certain someone for you. She says, “to impress you musT…EXPRESS!” ok, daaahhhhhling? (: