reis a node at the middle and an antinode at each end, caus-ing the air to vibrate in a full wave length, hence thehigher note of an open pipe. The Human Voice. — One of the most wonderful reedinstruments in the world is that by which the human voice Glottis Narrow, High Note. Glottis Wider, Quiet… … Sound. ^75 marked by the ** Adams apple. Fig. 140 shows theorgan as seen from above by the use of the laryngoscope.C^ is a slit through which the air passes to and from thelungs. A and A are thin projecting membranes called thevocal cords. In breathing they are loose and lie close tothe sides of…
Physics
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