NODAL LINES” (sung to “Jingle Bells)

 by the physics students of Frankfurt American High School, Frankfurt, Germany, 1977


A day or two ago, I thought I’d check out light,

to see if what I’d heard was absolutely right.

I held two pencils up, and put them to my eye,

and when I looked into the light I knew it was no lie!!


Nodal lines, nodal lines, shifting all in phase.

Oh what fun it is to watch the pattern formed by rays.

Nodal lines, nodal lines, caused by bending light.

Oh what fun diffraction is unless the light’s too bright!!


Background courtesy of