March 12, 2004    Kwantlen College
Ljiljana Trajkovic, Simon Fraser University
5
High-frequency currents
nIndependently wealthy, in 1889 Tesla returned to his New York laboratory to pursue his interest in high-frequency currents. nAt an AIEE meeting in May 1891, Tesla gave his first public lecture and demonstrations of his high-frequency work. nHe created sheets of flame and caused sealed tubes of gas (Geissler tubes) to glow without a direct electrical connection to them.