A cool science demonstration which shows how the electrons swirling around the outside of a Tesla coil can turn it into an impromptu motor – in this case, causing a wire balanced on top of it to spin and shoot sparks as it goes. Originally seen in a video from ElectroBOOM.
There’s something oddly satisfying about watching this red hot nickel ball sear its way through a stack of DVDs. If only we had thought of this when AOL used to spam us with all those stupid compact discs.
A chemistry experiment starts out innocently enough, when all of a sudden, the gates of Hell open, and a creature emerges from its bowels. Kill it with fire! Oh, wait… Dowse it with water! Memo to self, never mix NH4Cr2O7 with HgSCN.