Synthesized answer
The provided passages do not contain information about the practical implications of the phenomena discussed in Nikola Tesla's lecture "On Light and Other High Frequency Phenomena" [1]. The passages only state the title of the work and the venues and dates of its delivery [1]. Therefore, a comprehensive answer regarding practical implications cannot be provided based on the given text.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: ON LIGHT AND OTHER HIGH FREQUENCY PHENOMENA by Nikola Tesla Description: A lecture delivered before the Franklin Institute, Philadelphia, February 1893, and before the National Electric Light Association, St. Louis, March 1893.