In order to explain scientific effects, we need to use some scientific phrases, which are maybe new to you. Do not worry, look them up.
Wiki is a collection of articles, which explain and describe scientific terms and phrases. If you read an experiment's explanation and you do not know one specific term, look it up in Wiki. You can use the search-feature or search for the word in the Wiki-Index.
Of cause you can read some articles about terms you already know, in order to get more detailed information.