He upgraded the custom lighthouse light which he originally designed in high school for their garden fountain. He even went so far as to craft some retail-worthy packaging for the gift.

His light-from-space experiment, published in the journal Lighting Research & Technology, showed that most of the artificial light wasted - by being sent upwards into space, rather illuminating a ...

Light could even become the preeminent power source for long-distance space travel. The spaceship would have an ultrathin sail to catch the "wind" of light beamed from an Earth-based laser.

and the horizontal angle from the second lighthouse. That’s all you need to orient the Vive in 3D space. To get a simple microcontroller to do the same trick, [Trammell] is using a fast ...