Fortunately (unfortunately?) I only posted examples of my somewhat-kid-friendly magic. Nobody died in microwave oven accidents. That plus a couple of minor inventions (made public as a test to see how fast the idea-thieves would pounce on them.) None of my frightening demos using vacuum pumps and Spellman supplies. Well, I guess I did write about our hypergun which fired a small plastic slug through a clay block twelve inches thick (a spinoff of the very first quarter-shrinker capacitor bank,) and no little kids yet tried building one: http://amasci.com/amateur/capexpt.html#shrink
I still haven't tried out the giant version of Lord Armstrong's water-bridge, from an eyewitness report where a liquid "snake" several feet thick was extending itself thousands of feet across desert land during a thunderstorm. If such things are possible, then an HV supply of a few hundred watts and a couple hundred kilovolts should produce something similar (the recent water-bridge experiments use 10 to 20KV supplies at under ten watts, a 2cm bridge, a mm or two in diameter.) Rainwater or ddw on very clean sand? Needs a big Cockroft-Walton diode stack http://amasci.com/freenrg/wasser.html
And the infamous invisible wall at the 3M factory, recently someone claims to have seen an example caused by electrodes connected to a reversed pole-pig transformer, where coins would bounce off the empty space. This is silghtly conceivable: a corona in air may develop a stable annular double-layer with a significant space-charge and pressure-gradient of air. But would a metal object bounce off? Or just short it out? Plasmas do tend to avoid cold bulk metal surfaces (Tesla managed to make an opaque "neon sign" with a metal tube rather than glass, but skeptics refused to believe it was real. The plasma in near-vacuum can travel many inches through thin metal tubes without leaping to the metal! Try it, it's really weird: pipes full of glowing "electricity" rather than water.)
Speaking of PRIMER, did they actually base the plot on meissner maglev "null coils," placed in a circle rather than parallel rows? Then, put it all inside a "One Atmosphere Plasma Globe" full of argon? But then, where do platinum catalytic converters figure in that? Or maybe they were just huddling inside a styrofoam version of the USS Eldridge hull, covered with active magnetic shielding coils, but not turning invisible.