Based on the details like deuterium fusion with high voltage, my guess would be that FiatLuxDave built a variant of a Fusor. It is a challenging project but no

Based on the details like deuterium fusion with high voltage, my guess would be that FiatLuxDave built a variant of a Fusor. It is a challenging project but not out of the reach of a dedicated high school student. http://makezine.com/projects/make-36-boards/nuclear-fusor/ http://makezine.com/projects/make-36-boards/nuclear-fusor/