Creating "Visible" Inert Gases Please understand this this question is coming from a completely ignorant user who is just starting his research into an area he knows absolutely nothing about. Given that, my question(s) may make no sense at all to an educated set of people. Thank you. Is there a way to create inert gases (or noble gases) that you can see? Meaning, can I generate a "safe" gas in a controlled environment using basic tools and equipment by applying techniques that will make that gas visible?