A company in New York has invented a paint that can switch between blocking cell phone signals and allowing them through.

Using nanotechnology, particles of copper are inserted into nanotubes,
which are ultra-tiny tubes that occur naturally in halloysite clay
mined in Utah. Combined with a radio-filtering device that collects
phone signals from outside a shielded space, certain transmissions can
proceed while others are blocked, the Chicago Tribune reported.

Pretty cool. Sure, there are some safety issues to consider, but I think everyone can agree that blocking cell phones at movies and concerts would be a good thing.

Written by

Fred Simmons

As a Managing Partner and the Director of User Experience at Gulo, Fred enjoys making website interactions more natural and improving UX design. Outside of work, Fred enjoys golf, BBQ, craft beer, movies where the bad guy wins, comma-separated lists, and talking about himself in the third person.