When these rings are under stress, the polarization of light passing through them changes. “This shows how the force is propagating,” he says. As he presses on the rings with a flat-ended rod, a ...

View Deal Ring Battery Doorbell Plus with Ring Spotlight Cam Plus and Ring Alarm 14-Piece: was $579.99 now $389.99 at Amazon This is an immense bundle for those who are serious about upgrading ...

Those looking for an outdoor accessory to pair with their purchase will like this bundle which pairs a Spotlight Cam with an Indoor Cam. Ring's Spotlight Cam uses two motion-activated LED ...