Blue Light: how harmful is it, and how to protect your eyes from it?
How many of you can recall the concept of dispersion of light belonging back to the standard tenth? Okay, okay, don't hesitate if you fail to remember it. Even though I know a little! Light is made up of the seven primary hues that we abbreviate call VIBGYOR - Violet, Indigo, Blue, Green, Yellow, Orange, and Red. Each shade of light possesses its energy as well as a wavelength. The rays...