http://www.kirlian.org/kirlian/korotov/korotkov.htm
The Russian inventor Zolotov developed a special method of photography.=
=20
A person is placed against a black
background - either the night sky or a big box upholstered inside=20
with black velvet. Light from a bright bulb is directed
frontally onto the object and photographs taken with considerable=20
over-exposure. In the photos, due to over-exposure,
the body appears uniform white, and a hazy radiant aureole can be=20
seen in the black space around it. The appearance of
this aura varies with individual human subjects. More recent use of=
=20
this phenomenon has been made in the well-known
exhibition device "Aurograph", by which photos of a man=92s aura ca=
n=20
be taken on Polaroid film.
In a quite different system the English researcher Harry Oldfield=20
uses a video camera with normal lighting conditions.
The digital output from the camera is processed by computer so as=20
greatly to enhance the contrast, and make visible
small differences in brightness which are not apparent to the eye.=20
He makes diagnostic use of this in connection with his
Electro-Crystal Therapy.
The fact that the aura can be registered by several photographic=20
methods suggests that at least one component of it is
conventional light. There appear to be no records of the aura being=
=20
seen in total darkness, and so it is probably not
self-luminous. Thus the light which is seen must come from light=20
incident on the subject. If the light source is on the
same side as the person viewing the aura, then the auric light woul=
d=20
need to be somehow reflected back towards the
viewer. In principle this could happen either by reflection from=20
particles in the air (e.g. dust) or by scattering from the air
molecules themselves - which is what accounts for the blue light we=
=20
see in the sky. On the other hand if the light is
behind the subject then refraction may play a role. This last seems=
=20
a real possibility when one considers that the human
body is usually some 15(C higher than the environmental temperature=
..=20
This means that, close to the body, there will be a
layer of warmer air with lower refractive index. These warm air=20
layers are clearly seen beyond the asphalt surface in hot
sunny day and often very well registered in cinemas.