It's a physics-related project. I need some information on the GM tube. I've tried searching in my text book, but it's not there as it is not a part of my syllabus. I tried searching online, but the results provide very detailed information which is difficult for me to understand.
I need to know what a GM tube is.
What it is used for.
How it works.
Could someone explain these three points in a way that is easily understandable?