Tesla Wireless and the Tunguska Explosion

Nikola Tesla's writings have many references to the use of his wireless power transmission technology as a directed energy weapon.
These references are examined in their relationship to the Tunguska explosion of 1908 which may have been a test firing of Tesla's energy weapon.
This article was first published in a different form in 1990.
The idea of a Tesla directed energy weapon causing the Tunguska explosion was incorporated in a fictional biography (1994), by another writer, and was the subject of a Sightings television program segment.

Tesla Wireless and the Tunguska Explosion

" The present is theirs; the future, for which I really work, is mine. "
— Nikola Tesla
" If Edison had a needle to find in a haystack, he would proceed at once with the diligence of a bee to examine straw after straw until he found the object of his search. I was a sorry witness of such doings, knowing that a little theory and calculation would have saved him ninety per cent of his labor. "