Parapsychology Articles, Papers and Books
Umbrakinesis is the psychical influence of the electromagnetic spectrum including visible light and part of the near-infrared range. Umbrakinetic-based influence includes any form of electromagnetic radiation capable of causing a direct visual sensation directly within wavelengths of 380-950 nanometers whether wavelengths are pure or mixed.
The umbrakinetic-influence of decreasing the brightness of an electrical light source, a commonly reported skill of experients of umbrakinetic phenomena, is hypothesized to be the result of deconstructive interference.
To understand how this works, consider two light waves that are in phase, sharing the same frequency and with amplitudes A1 and A2. Their troughs and peaks are lined up and the resulting wave will have an amplitude of A = A1 + A2.
This is known as constructive interference. On the other hand, if the two waves are out of phase, then one wave’s crests will coincide with another wave’s troughs and they will tend to cancel out. The resultant amplitude is then A = |A1 – A2 |, and if A1 is equal to A2 then the resultant amplitude will be zero.
This is known as destructive interference. In these types of exercises, experients have been directed to use a small light-emitting-diode (LED). Experients may find more influencing success with one wavelength (color) over another.
(Adapted from the paper "Manual of Umbrakinesis: Applications, Experimentation, and Measurement” by Theresa M. Kelly, MsD.)