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"Many types of light have frequencies too high or too low for the human eye to detect. [...] A number of specialized photography techniques have been devised to work with different light frequencies to make the invisible visible." (Delton T. Horn)  | "Many types of light have frequencies too high or too low for the human eye to detect. [...] A number of specialized photography techniques have been devised to work with different light frequencies to make the invisible visible." (Delton T. Horn)  | ||
One of those techniques is known as "Kirlian photography". In a Kirlian photograph, subjects are surrounded by colorful auras, which indicate their inner state on a physical, mental, and spiritual level.   | One of those techniques is known as "Kirlian photography". In a Kirlian photograph, subjects are surrounded by colorful auras, which indicate their inner state on a physical, mental, and spiritual level. A professional institution could be asked to read the photographs.  | ||
'''Construction manuals'''  | '''Construction manuals'''  | ||
Horn, Delton T.: "21st-century electronic projects for a new age", 1992  | Horn, Delton T.: "21st-century electronic projects for a new age", 1992  | ||
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