Amazing Pen Writes Using Conductive Ink
Japanese startup AgIC have created a pen with a rather unusual property: its ink can conduct electricity!
In an ad released by Japanese infrastructure firm Kandenko, the pen is used to close circuits laid out on paper cutouts, lighting up tiny bulbs and, as the pieces of paper are pushed upright to form 3D structures, creating a tiny paper town, complete with its own lighting.
The makers of the video said
they drew inspiration from children's pop-up books for its creation, and took a number of takes to get their perfect shots.