Descargar Die dunkle Seite des Lichts (2009)

Since the invention of the light bulb, natural darkness is increasingly invaded by artificial light. Once, light was considered unconditionally as an entirely positive element: the more light, the better. It increases safety and has a positive effect on our moods, but scientists are discovering that light also has a dark side as we are discovering its many unforeseen consequences.—lisaw80631