Daniel Bernoulli (1700-1782)
Source: http://en.wikipedia.org/wiki/File:Daniel_Bernoulli_001.jpg
The Bernoulli effect refers to systems where an increase in speed occurs simultaneously with a decrease in pressure. This may happen with fluids as well as relatively slowly moving gases, such as air blown into musical instruments. This means that air moves faster when flowing through a region of lower pressure. In music instruments components such as the mouthpiece, which is generally smaller than the human mouth cavity, as well as slits or reeds (such as the windway in the fipple of the recorder) cause the air column to move faster, and this excitement creates a soundwave.
In over-simplified terms, the difference between the Bernoulli effect and Helmholz resonator is that the Bernoulli effect creates sound, while the Helmholz resonator amplifies it.
This effect was first described by the Dutch-born Daniel Bernoulli, who became a Swiss citizen after fleeing religious persecution, in his book Hydrodynamique (Hydrodynamica), published in 1738.
Daniel Bernoulli (1700-1782)
Source: http://en.wikipedia.org/wiki/File:Daniel_Bernoulli_001.jpg