Dot-dash-diss: The gentleman hacker's 1903 lulz
"Someone, Blok reasoned, was beaming powerful wireless pulses into the theatre and they were strong enough to interfere with the projector's electric arc discharge lamp."<p>Serious power! Remember this was <i>before</i> tuned circuits became common (google 'syntony oliver lodge'). Even allowing for the sensitivity of a balanced carbon spark gap, you need to move a carbon rod or have a magnetic field strong enough to change the position of the discharge. He must have been in the same building...