Not science-y maybe, but as a geometry fan, this is what I decided to draw on my own leg when I impulsively bought a tattoo gun.
Knowledge = power = energy = mass, which is why time dilates while you're in a book shop. (Sorry to Terry Pratchett.)
I work a lot with very dilute solutions, so I got the equation for calculating Parts Per Billion on my arm. The mods actually host it on this site, the link is at the bottom of the page right above the modlog
It's a tattoo of Ceanothus americanus, from a botanical survey of North America commissioned by the first continental congress in 1774. The lettered images on the bottom show the development of the flower head and seeds.
I'm a big fan of the voyager pulsar map. I haven't got it yet but could come in handy if I get lost
Ohh I am in the process of convincing my wife to let me get my light cone tattooed on my arm. Just a small flat versions. Nothing super fancy I just like to envision a tattoos that is relative to me.
I have other dumb ones from when I was younger but they're not who I am now.
But my time cone the dot being my present and the cones a reminder of where I have come and where I am going, along with the limitations of the universe
That's amazing!!! Well done, dude. Looks absolutely sick. Why this subject in particular?
I like geometric patterns and Penrose tiles are neat, mainly liked how they tile a plane infinitely without repeating. Wish I had a more satisfying answer but there it is.
I had a professor tell me many years ago that I'll make no money or probably be able to get through in the field and if I felt like it was a threat, I shouldn't be there. It was not a mean statement, just a warning for the realities of an underfunded industry. I am still here, just because I think it is neat. Sometimes, that is enough.