https://twetch.app/t/1c937e6cdf0f273abea6a76345630f6c135e50…
https://twetch.app/t/1c937e6cdf0f273abea6a76345630f6c135e50fd5f26293e326a15591948a234
The frequency of the wave determines its color:
https://twetch.app/t/1c937e6cdf0f273abea6a76345630f6c135e50fd5f26293e326a15591948a234
The frequency of the wave determines its color: