Who knew Seth knew how to play the harp? This $600 gadget is a laser harp of sorts. Popular Mechanics has a video of it in action. As the video shows—why can’t I embed it?—every time you break a laser ...
The laser harp allows a performer to create music by placing the hand in the beams since this musical instrument is made of light. The design of the laser harp illustrates a fan of beams that shoot up ...
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