To understand Dr. Tesla's magnifying transmitter, let us review the nature of this energy. The device was based on the idea that it would be possible to obtain energy out of space (classical physic's "Ether") if one had the key to such a conversion. From the Tesla experiments, of the middle and late 1890s, he had learned and confirmed a number of interesting facts.
1. Energy in space, (Ether) conferred its physical properties by
the use of a specific intermingling of vibratory (Harmonic) forms. These
forms can be visualized by the use of an inertial device-i.e., a spinning
or vibrating object. An example of this process can be seen when applied
to the property of falling bodies. For instance, if we drop a spinning
gyroscope and a ball (of the same mass and density), the gyroscope will
fall at a faster rate than the ball and this rate will be proportional
to its spin. It is possible to liberate this "space energy" in the form
of direct current electricity if an operating circuit is placed between
the inner and outer planes of this inertial instrument.
2. Another means of tapping into the unlimited energy of space (Ether) is by modifying the capacities, inductance and curvature of a high voltage RCL (passive) coil. This coil must not be grounded nor its antenna constructed in the conventional means of modern electrical engineering. In addition, the efficiency ("Q") of the coil can be increased by the nature of materials employed in its construction. Hence Tesla's coils were ones of high capacitance, high induction and high curvature.
Tesla used these passive coils in the-same manner as one uses the spin of the gyroscope. Circuitry, once again, supplants mechanical Spin and is utilized in the energy's flow from the center of the coil (extra capacitor) to outside of the RCL coil. To sum up, Tesla learned that "space energy" was an energy of motion (rotation) and shape (coil harmonics). In this way, it was possible for Tesla to state in a letter to his good friend and mentor, Robert W. Underwood that he had discovered the principles for the design and construction of "fuel less motors."
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