I Could Read A Great Dialogue Regarding The ...

I could read a great dialogue regarding the Visible Spectrum. Some here would understand it, to others like me it would be little more than words. I get a little more understanding when they talk about the speed of light, because although I cannot understand speeds of that magnitude, (194,188 miles in one second of time, or terms referring to light years) I can understand that it takes time to travel from a - b but not much more.