Not to be confused with the spy paper we showed you a few months back, the brainiacs at Xerox have invented a new self-erasable paper that fades to white after 24 hours. The invention “came from developing compounds that change color when they absorb a certain wavelength of light but then will gradually disappear.” The paper is reusable though it appears you’ll need a special printer to get images on to it. I can see this working in the newspaper industry and such, but I can also see a ton of scam artists making people sign contracts that “change” over night.
https://gizmodo.com/dissolvable-spy-paper-keeps-your-secrets-safe-196104
Press Release [via Daily Tech]
