I don't do graffiti often, but when I do this is what I write: ∇ ‧B = 0 I love the simplicity of the equation, and the implications that come from it. (I onl

I don't do graffiti often, but when I do this is what I write: ∇ ‧B = 0 I love the simplicity of the equation, and the implications that come from it. (I only write it in places where graffiti has become acceptable, like some hike-in cabins. I also occasionally leave it in small writing in the corner of random whiteboards.)