Wanna know the great thing about humanity? We have almost solved this problem, twice: http://www.redorbit.com/news/science/1112882857/new-scanning-laser-sees-o

Wanna know the great thing about humanity? We have almost solved this problem, twice: http://www.redorbit.com/news/science/1112882857/new-scanning-laser-sees-object-composition-062513/ http://www.redorbit.com/news/science/1112882857/new-scanning... https://www.researchgate.net/publication/231041901_Portable_LIBS_system_for_determining_the_composition_of_multilayer_structures_on_objects_of_cultural_value https://www.researchgate.net/publication/231041901_Portable_...