See the patterns that appear when sand vibrates at certain frequencies!
The patterns actually increase in complexity as the frequency increases.
Originally published in 1787 by Ernst Chladni, this illustrates a concept known as “fundamental modes of vibration.”

Tags: ::SCIENCE & PHILOSOPHY::, ernst chladni, fundamental modes, harvey mudd college, modes of vibration, natural frequency, nodal lines, pure vibrations, sand patterns, science friday