Can you see anion or minus ion? No, but Scientist had invented machine to detect it.
There are many thing we cannot see, but it does exist. There are still many things that we do not know that we do not know. It is a never ending learning.
I had purchased a ion detector and I would like to share with you how much anion my Nefful teviron blanket that I had been using for the past 4 years still can attract after all these years.