Just add water.... to self-folding carbon sheets of origami
See the note and demo at 6:45 [ 6 minutes 45 seconds ] of the video at physicist Sabine Hossenfelder's weekly video Science without the gobbledygook @sciencewtg In case you haven't had time to wrap your head around the #LK99 tweets, Sabine has a 4 minutes summary in today's video, plus more about the AMOC, quantum radar, self-folding origami, the first European hyperloop test, and more! https://twitter.com/sciencewtg/status/1686060637011558420