It's for "È la chimica, bellezza!" article inside "La Catarsi del Capitalismo" book written by Mr. Fabio Zoffi. The story is about the background of Ms. Angela Merkel, who is a chemist by education and behaves like a political chemist, who does experiment slowly slowly with dangerous material in the lab...while the other students, which is the other European leaders (Renzi, Cameron, Hollande, Rajoy, Tsipras) are hidden in the background and scared of the experiments.