Скачать с ютуб What light I use for comic book whitening, how I discovered it, and why I think it works so well. в хорошем качестве

What light I use for comic book whitening, how I discovered it, and why I think it works so well.

This video goes into detail on the origins of using 450-460 nm Blue-LED light for the purpose of comic book stain removal and whitening. It also attempts to address as clearly as possible the misconception that Blue LED (450-460 nm) is UV light (defined as wavelengths between 100 nm and 400 nm). There is also a simple explanation on why these lights work so well.