Hey Physics World! Not sure what sort of responses I will get here but I thought to give it a shot. I am not a total physics nerds and I don't know all that there is to know about it... but from what I have learned so far from my college courses, it is my all time favorite science! I remember being a kid and often questioning things that I have in my older years come to find can actually be answered... by physics! My appreciation for this field has grown a lot. On another note, I am really into the Aurora Borealis because it is this beautiful Earthly phenomenon that needs so many elements to make its occurrence. I consider myself a very pragmatic person but at the same time find enjoyment at the amazement of life and its natural wonders. How so much is understood but yet so much more is unknown. Math, in particular, is something that is even more mind blowing to me. How we as a species created this 'language' that can be used to interpret and literally found in our world! Like... what!? We made it up! So anyway, I have been really toying with the idea of getting a physics equation tattoo. But how neat would it be to do something related to something abstract? Instead of the Aurora painted onto my body, to put it into a pragmatic equation. =D But what equations would relate to this? If there is any... What about the electromagnetic spectrum? I've read somewhere that chevron's radiation could be related to this phenomenon. I haven't gotten this far into my studies so some ideas of where to start for such a mathematical formula would be greatly appreciated! Thanks!