If I Could Go Back In Time

If I could go back in time and be young and just starting college, I might take classes that would get me a career doing stuff like this:

Using a technique called X-ray fluorescence, a team of researchers at Cornell University has revealed ancient inscriptions carved into stone that had faded away over the centuries. Scientists fired high-energy X-ray beams at the 2,000-year-old inscriptions using Cornell University's synchrotron, exposing trace elements left over from paint that dried up and faded away centuries ago. Concentrations of those elements can then be mapped along the outline of the letters, making them readable to the naked eye.