You've got titanium nitride coated drillbits sitting on what looks like a velvet-like cloth. Titanium nitride is triboelectric. You're generating a shittonne of static electricity just by moving it around on the cloth from the triboelectric effect, every time you touch the two together it's discharging, producing a broadband source of RF.
I'm betting if you attached a ground wire to both drillbits and got rid of the cloth you'd see nothing or next to nothing.
HomicidalTeddybear t1_j8hb374 wrote
Reply to How does rubbing or hitting two metal objects together create radio waves? by hondata001
You've got titanium nitride coated drillbits sitting on what looks like a velvet-like cloth. Titanium nitride is triboelectric. You're generating a shittonne of static electricity just by moving it around on the cloth from the triboelectric effect, every time you touch the two together it's discharging, producing a broadband source of RF.
I'm betting if you attached a ground wire to both drillbits and got rid of the cloth you'd see nothing or next to nothing.