A fellow organizer gave [Kieran] a [Harry Potter] Magic Candle, which allows him to light the toy with the wave of his IR-enabled wand. He was told to “make it do something cool”, so he took a ...

The Magic Wand Sensor is a fun way to bring a touch of magic into your smart home. Whether you're building it yourself or using a pre-made kit, the project is simple enough for beginners but ...

Is it magic? No, it’s a neat hack that uses ... The basic idea is that a retroreflective dot on the end of the wand reflects light from a set of infra-red LEDs around the camera.

light squeezers and broadband optical-communication networks. “I refer to it as a magic wand — you feel like a wizard because there’s so many applications, from ultralow-noise space ...