An onboard motion sensor can turn the light switch on when the room is occupied ... If they’re motion-activated, how reliably do they respond to movement in a room. If the dimmer and switch ...

MIT scientists used light to control how a starfish egg cell jiggles and moves during its earliest stage of development. Their optical system could guide the design of synthetic, light-activated cells ...

The pacemaker also has a light-activated switch, and this is paired with a small heart rate sensor that the patient wears on their chest. When the latter detects the patient's heart slowing below ...