Things in life that bother me. This is my new list. I am having trouble accepting the concept of invisible light. I mean, isn't the whole idea of light that it is visible. Light is just that - light. Without it nothing's visible. So, now at this late date I must accept the idea that radio waves and MICROWAVES ! are light, they are just invisible. Please. Who says so? I have just come to accept the concept that waves are also particle and now I have to grasp this light thing. Visible light is great as it is color and color is something I love and understand on lots of different levels. Did you know, for example, that the English language has the most words for color, some 3000 plus, more than any language. I think we can make some assumptions about English speakers from this. We like color and it is very meaningful to us. Maybe we are even more sensitive to color than say the Germans or the French. Although, the French do quite well with it. I wonder how many words for color the Eskimo have? I remember hearing that they had hundreds of words for snow. I have one word for snow. There was a tribe in Africa that had red, green, blue and brown. That's it. Miners came and taught them yellow so they could find the yellow stones that had diamonds in them.