"This unique piece of apparatus uses Lissajous figures to show that the ratio of the frequency ratios in a diatonic scale are ratios of small numbers. On the side is an air-driven vibrating reed with a small mirror attached to its free end....
Photographs; Santa Clara College (Calif.)--Orchestras
Group of 8 students holding string instruments (violins, violas?); Taken in garden, Students numbered, some identified, standing back row (L to R): A. Tobin, 2, 3, J. Garibaldi; Seated front row (L to R): Willie Martinez, 6, J. Drathman, 8. ...
Scientific apparatus and instruments; Santa Clara University (Calif.)
""This unique piece of apparatus uses Lissajous figures to show that the ratio of the frequency ratios in a diatonic scale are ratios of small numbers. On the side is an air-driven vibrating reed with a small mirror attached to its free...