The stage choreography first resulted from practical solution seeking since the performers require additional space when whirling the tubes after performing with the cellophane.
Both researchers observed the following relationship between the whirling speed and produced frequency: whirling the tube at low speed initiates the first overtone.
However, whirling a corrugated tube opened at both ends results in a noticeable tone.
The use of contrast-echocardiography facilitates identification of the tip by showing the whirling contrast where the fluid leaves the catheter.
Very few humidity records were taken, as the only available whirling hygrometer was broken by an assistant early in the period.
The hair hygrograph was inaccurate, but the graph was corrected from whirling hygrometer readings five times a day.
It is long, and although not quite repetitive, one does have the sense of whirling in place, without ever reaching any profound conclusion.
In the second case, multiplanar imaging disclosed low flow at the site of drainage of the fistula, but did not show any whirling flow in the fistula.
