Continuing with my recent spectral findings, I used other glasses, with and without various liquids to create multicolored light experiments.
The refraction of light above and below a layer of liquid shows a rainbow of colors.
By moving the angle of the iPhone camera by small amounts, a full range of the color spectrum could be captured.
Brilliant blues shown under muted rose and lavender.
Another slight shift introduced yellows and chartreuse into the frequency range. I couldn’t see these colors with the naked eye, but the iPhone camera was able to find them!