PDF Light Spectrums

click

https://www.thoughtco.com/understand-the-visible-spectrum-608329

more on the light spectrum

Passim

[PASS-ihm]

1.

(Of allusions or references in a published work) to be found at various places throughout the text.

 "It was set up that way with diabolical and machinating 'full disclosure'."

-Stellarmass13