ScienceDaily (Feb. 13, 2008) — If humans had see-through skin like a jellyfish, spotting disease like cancer would be a snap: Just look, and see a tumor form or grow. But humans, of course, are not remotely diaphanous. “The reason a person is not transparent is that their tissues are highly scattering,” sending light waves careening through the tissue instead of straight through, as they would through the tissue of that jellyfish, explains Changhuei Yang of the California Institute of Technology.
