A flexible screen inspired in part by squid can store and display encrypted images like a computer—using magnetic fields rather than electronics.

It’s one of the first times where mechanical materials use magnetic fields for system-level encryption, information processing and computing. And unlike some earlier mechanical computers, this device can wrap around your wrist.

Full Paper:-

Janus Swarm Metamaterials for Information Display, Memory, and Encryption

https://onlinelibrary.wiley.com/doi/10.1002/adma.202406149