Someone Explains How the Nintendo NES Zapper Actually Shoots in 'Duck Hunt'

Ever wonder how the Nintendo NES system had a fairly accurate shooting peripheral so long ago, without the use of futuristic laser beams and VR? Turns out the Zapper gun, as well as other light guns early back, had technology that was quite simple. Youtube's The 8-Bit Guy recently dismantled and dissected the retro tech and revealed the Zapper's function; basically, the screen flashes across three frames that, momentarily, flashes a white box that the zapper gun can detect. If the gun is pointed...