It’s easy to doodle a circuit! Made with silver conductive nanoparticles, the ink in the AgIC Circuit Marker can conduct electricity, as shown in this pop-up book inspired Japanese commercial by Kandenko. Watch the LEDs light up as the pre-cut glossy photo paper is drawn on and then folded into place.
Though it’s become quite popular, you may be able to find the pen and special paper set on Amazon. We also recommend Circuit Scribe and Chibitronics’ Chibi Lights, a LED Circuit Stickers STEM Starter Kit.Related vids: The Red Thread, a time lapse of Sol LeWitt’s Wall Drawing 797, and a giant forest xylophone that plays Bach.
via Rocket News 24.