Galvanometrin

Galvanometrin is a fictional chemical compound appearing in the comic book series The Adventures of Tintin, created by Hergé. It is not a real chemical substance. In the story "The Broken Ear," it is presented as a highly volatile and dangerous explosive. The substance is discovered by the villain Roberto Rastapopoulos, who intends to use it for nefarious purposes.

The fictional nature of Galvanometrin is central to its role in the plot. Its extreme properties are exaggerated for dramatic effect, highlighting the danger posed by Rastapopoulos's schemes. The character Professor Calculus, a recurring inventor in the Tintin series, often deals with dangerous or experimental substances, but Galvanometrin is specifically depicted as a uniquely potent and unstable explosive. Its name itself, "Galvanometrin," sounds scientific and reminiscent of electrical terms, possibly hinting at an explosive reaction triggered by electrical current, although this is not explicitly detailed. The compound serves as a MacGuffin in "The Broken Ear," driving the conflict and urgency of the narrative as Tintin races to stop Rastapopoulos from acquiring and using it. The substance's existence is confined entirely within the fictional universe of Tintin.