Math body art

Here is some trigonometric and logarithmic equations written on an attractive face (it appears to be done using Photoshop, not a tattoo. Subscripts and superscripts have been linearized.):

This next guy is a biochemist and molecular biophysicist.

He writes:

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.

The owner of the tattoo writes (original page no longer available):

For me it serves as a reminder that while technology improves, the sea remains an unpredictable place and it is up to the older generation to teach the younger the old school ways of doing business.

See the 3 Comments below.