A Norwegian artist creates an illustration using invisible ink and heat. Dino Tomic uses a unique ink called thermosensitive ink to draw his portraits. The way this works is he first draws a picture using permanent ink. Then he draws another portrait onto of that one with his special ink. Next, he adds a flame to his canvas and the outer sketch disappears. No burns to the paper or anything. The one challenge behind all this is aligning two facials outlines with one another. Without this minute detail, the transition between pictures would not have the same effect. Tomic has sketched an array of people from Marvel Superheroes to Harry Potter to Pop Culture celebrities. Perhaps aspiring artist will use this technique or something similar for upcoming inspiration. Maybe someone will find a different natural element that causes a reaction to their artwork.