Andrew Lackey

By Andrew Lackey and Mark Wentzel
https://escalierforte.com/

GOAL:
 To provide a deep hands-on dive into the mystery of how waves traveling on a string attached to a wood box makes sound.  We expand to epic scale a common instrument to see and feel the physics of materials interacting and discover the joy and limitations of what it means to hear.

SOUND:
Escalier Forte can produce an extreme range of frequencies - particularly at the low end of the spectrum going well below 1 hz.   Each string is “tuned” to a different tension from highest (red) to lowest (blue). For humans, with a limited perception to low frequency, this is appreciated as a visual experience of colored strings beautifully oscillating with each other.  More...