This guy is a biochemist and molecular biophysicist.
The first line is the Born Oppenheimer Approximation (a method for simplifying calculation of the energy and molecular wave function of a molecule), the second line is the equation in the form of a 3-Dimensional Schroedinger Equation, and the solution in the form of a Schroedinger Equation (a wave function that yields probabilities of physical variables).
And finally, a navigator in the navy believes passionately that while we have GPS, sailors should still be able to navigate using the sun and stars.![star-navigation-440-tattoo[1]](http://opticalillusion.files.wordpress.com/2010/05/star-navigation-440-tattoo1.jpg?w=468)


![equation-tattoos[1]](http://opticalillusion.files.wordpress.com/2010/05/equation-tattoos1.jpg?w=468)