Visualization of Spirits
Nikola Tesla wrote several letters to the English physicist William Crookes, in which he pointed to the possibility of objectifying spirits through electrical discharges. At that time, Crookes was conducting scientific research on spiritualistic phenomena, making him one of the few respected scientists openly studying the subject.

Tesla’s letters to Crookes later disappeared without a trace, along with Crookes’ archive in 1918. Their content is known only indirectly, but it is clear that Tesla believed high-voltage electrical fields could make ghostly apparitions visible or measurable under certain conditions.
One surviving document, preserved in the Nikola Tesla Museum in Belgrade, is a letter from 1893, in which Crookes thanks Tesla for sending a special electromagnetic spiral. According to Crookes, this device produced a field in which the outlines of spirits became more clearly defined, offering a potential method for the visual observation of non-material entities.

Volumetric Glow of Objects
In 1896, in Colorado Springs, Nikola Tesla conducted a remarkable and highly dangerous experiment in a physics laboratory. A large ebonite insulator was placed on a generator operating at one million volts. On top of the insulator, Tesla positioned a metal plate connected to a direct-current source. A second metal plate was installed above it and also connected to the generator.

Tesla stepped onto the lower plate, standing on the ebonite platform, and placed himself directly inside a high-voltage electric field. A photograph taken at that moment revealed a bright volumetric glow surrounding his entire body - a phenomenon that later became known as the Tesla Effect.

In 1893, Tesla had already passed an electric current of one million volts through his body at a frequency of 200 kHz. During this demonstration, his body glowed in the darkness as if it were wrapped in bluish flames.

Visitors at the World’s Columbian Exposition in Chicago in 1893 were both horrified and fascinated as the thin, intense scientist with an unusual surname allowed two million volts to pass through his body on a daily basis.

According to Tesla, when all parameters of the transformer are correctly tuned, faint light emissions can be seen flowing from the body in darkness. At high frequencies, these luminous streams are short and finely structured, while lowering the frequency produces longer, noisier discharges that cause noticeable discomfort.

Experiments of 1897 and the Search for Resonant Fields
In 1897, Nikola Tesla carried out a new series of high-voltage experiments. He built an alternating-current generator producing one million volts, mounted thick insulating plates on its terminals, stepped onto one of them and switched on the current. A shimmering light immediately formed around his body. During this demonstration, an electric current of 0.8 amperes at one million volts and a frequency of 100 kHz passed directly through Tesla’s body.

While experimenting in Colorado Springs in 1899-1900 with extremely low and extremely high electromagnetic frequencies, Tesla reportedly attempted to determine the frequency and modulation characteristics of the human biofield, both in living and deceased subjects. According to later interpretations, by applying very high frequencies, he may have created a field matching the resonant vibrations of disembodied souls, gaining access to a technique that allowed the visualization of the so-called astral level of biological existence.

Experiments by Hugo Gernsback (1915)
In 1915, the American inventor Hugo Gernsback (1884-1967) conducted a series of experiments focused on creating spark-generated images. Gernsback personally met with Nikola Tesla and decided to repeat several of Tesla’s demonstrations. He carried out these experiments at the Electrical Testing Laboratories in New York, which housed the most powerful high-frequency transformer in the United States at that time. The results were recorded in a series of photographs.

During one of the experiments, a rabbit was placed on the plate of a high-voltage transformer, and a 500 kV charge at 5 kilowatts was applied for 20 seconds. The plate was moistened with water to improve electrical contact. At the initial moment, long sparks leapt from the rabbit’s nose, above the eyes, and around the ears, followed by a visible glow spreading through the fur. The sparks around the nose and eyes likely appeared first because these are the most humid areas on the body, and electrical discharge develops more easily on moist surfaces.

When the experiment ended, the rabbit calmly began eating a carrot, showing no signs of distress. However, despite the success of the demonstration, the laboratory did not permit Gernsback to repeat the experiment with a human subject, even though the setup was theoretically capable of producing a full-body glow, similar to Tesla’s earlier experiments.

Experiments of Frederick Finch Strong (1917)
In 1917, Frederick Finch Strong, a lecturer in electrotherapy at Tufts Medical School in Boston (USA), publicly demonstrated a luminous glow around the human body during his presentation at Startling Manner. The experiment used high-frequency voltage in the range of 2 MHz (sometimes 0.5 MHz). When the high-frequency discharge was applied, Strong placed his hand and fingers close to a sheet of photographic paper, and a clear image remained on the paper after exposure.

For these demonstrations, Strong employed a Tesla transformer, repeating and expanding on techniques that visualized glowing discharges and energy contours around the body.

The fingers of traveling scientist-preacher George Spink, fitted with metal thimbles, emitted electrical discharges. From the 1940s through the 1960s, Spink was among the many lecturers of the Moody Bible Institute who used scientific demonstrations to illustrate religious concepts. To create a lightning-like effect, Spink would stand on the coil of an electrical transformer. The lights in the room were switched off, and at his command a short burst of high-frequency current was released, flowing across the surface of his body from his feet to the tips of his fingers.

This list could go on and on, and all of it reinforces what I have stated in previous articles: there are meta-levels of reality, each possessing its own properties and characteristics. It also supports the idea that psi-fields, the human energy-informational bio-cocoon - truly exist, and that if we can uncover the principles of influencing them, positive effects could be achieved. And perhaps someone has already discovered the key…

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Sources:
1862 - O. N. Rood, “On the Study of the Electric Spark by the Aid of Photography,” American Journal of Science and Arts, Series II, Vol. 33 (1862), p. 219.
1900 - Hugh Walsham, “Photography of the Static Discharge,” Nature, Vol. 63, No. 1625 (20 December 1900), p. 180.
1908 - Frederick Finch Strong, “High-Frequency Current,” Remban, 1908, 289 pages.
1917 - Frederick Finch Strong, “Electricity and Life,” The Electrical Experimenter, March 1917, pp. 798, 831.*
1917 - Frederick Finch Strong, “How to Use High-Frequency Currents in the Treatment of Disease,” The Electrical Experimenter, December 1917.
1915 - H. Gernsback, “Electric Spark Pictures,” The Electrical Experimenter, October 1915, pp. 264-265.
1919 - H. Gernsback, “Cold Fire: Charging the Body with High-Frequency Current,” The Electrical Experimenter, November 1, 1919, pp. 632-633.
1920 - H. Gernsback, “Bathing in Cold Fire: Is Electricity to Take the Place of Soap and Water in the Ultra-Modern Bathroom?” The Register, Sandusky, Ohio, May 9, 1920, p. 9.

October 24, 2025