You're totally missing the
connection. Here, allow me:
From The History of Radar
Quote:
One of the hundreds of concepts generated by Nikola Tesla (1856-1933) included principles regarding frequency and power levels for primitive radio-location units. In an interview published in The Electrical Experimenter, August 1917, Tesla gave the following:
For instance, by their [standing electromagnetic waves] use we may produce at will, from a sending station, an electrical effect in any particular region of the globe; [with which] we may determine the relative position or course of a moving object, such as a vessel at sea, the distance traversed by the same, or its speed.
Tesla also proposed the use of these standing electromagnetic waves along with pulsed reflected surface waves to determine the relative position, speed, and course of a moving object and other modern concepts of radar.
Tesla had first proposed that radio location techniques might help find submarines (for which it is not well-suited) with a fluorescent screen indicator.
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So, Tesla...Radar.
It was an eloquent transition. Without radar, what would the submarines do?