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Approved For Release 2000/08/09 : CIA-RDP96-00792R000200160001-8
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Approved For Release 2000/08/09 : CIA-RDP96-00792R000200160001-8
PHYSICAL EFFECTS OF QI ON LIQUID CRYSTAL
Lu Zuyin, Yan Sixian Li Shengping, Go Feng
(Tsinghua University, P.R.C.)
Wang Yonghuai
(Institute of Automatism, Academia Sinica, P.R.C.)
Abstract
The effects of Qi from 14 Qi-Gong amateurs on the double refraction of
liquid crystal were observed, 7 of them exhibited positive effects.
Two types of rotations of liquid crystal molecules were introduced to
explain the experimental results.
The purpose of our investigation is to study the effect of Qi on the
molecular motions of matter. As all living beings are composed of molecules,
study the effects of Qi on molecules will help us to get a better understand-
ing of the biological effects of Qi, viz., the growing effect or killing ef-
fect on bacteria.
Liquid crystal (LC), because it is highly sensitive to the physical en-
vironement, was used in the experiment. The ordered alignment of LC molecules
is easily disturbed by the variation of its physical environement. Change in
the orientation of alignment means change in its physical properties.
If Qi has any effect on the molecular motions of matter, it will be ob-
served on LC easily.
1. Experimental Setup
A wedge shaped diphenyl nematic liquid crystal was used in our experiment.
The top width of the wedge is 10 H , the bottom width is 300 u and the height
is 1.3 cm respectively. The wedge is confined between two glass plates so
that the long axes of the liquid crystal molecules are parallel to the sur-
faces of glass plates. (fig.1)
A He-Ne laser of power 2 mW was placed 40 cm away from the wedge. Dia-
meter of the laser beam spot on the wedge is 1 mm.
Since liquid crystal is double refractive, an. incident light beam on LC
will be decomposed into two beams in the crystal. The ordinary beam (0 beam,
index of refraction no) has its plane of polarization perpendicular to the
optical axis of LC, i.e. perpendicular to the long axis of LC molecules, and
the Approved :BP Release 2060/08/09 :CIA KDP96-86792kb00200160061-gts plane of po-
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larization perpendicular to that of 0 beam. (fig.2)
10K
-
LC molecules®
1:
-300 px
Liquid crystal wedge
Direction of optical
axis of LC
Fig. 1
.
1- 40 cm
L
He-Ne Laser
0 beam
O
LG
₣ beam
E
Fig. 2
Screeni
In fig. 2, B., Beare the angles of deflection of 0 beam and E beam respec-
tively. L is the distance between the laser and the LC. MO and ME are the
distances of deflection of two beams from the horizontal line on the screen.
In our case, no=1.500, n =1.700, then 3 =20.505 and Be=30. 320.
L=780 cm, MO=31.6 cm and ME=34.1 cm. The separation between the centers of
the two beam spots is 2.5 cm.
2. Experiments
The first experiment was done at the end of 1983. The subject put
his hand 10-15 cm away rom the liquid crystal, send his Qi from his hand
to liquid crystal and the effect of Qi on liquid crystal double refrac-
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tion power was observed. Among four Qi-Gong amateurs tested, two of them
showed quite strong effects. The intensity of the E beam became weaker
and weaker while the intensity of O beam became stronger and stronger.
The most striking effect was given by subject G, the intensity of E beam
became so dim that only the central part of the beam spot remained vi-
sible and the intensity of 0 beam strongly intensified. The intensities
of the beams revovered in one or two minutes after the subject ceased to.
Send his Qi on IC. (fig.3)
-~ 13cm
5.4m
Laser beam
LC
Photocell
Fig. 3
start
stop
I ( HA )
F
120
measurement
error
110.
1001
0
XX
x
90
80 -
0
E
70 }-
60
50
4
5
1
2
3
0
t (min),
7
9
Fig. 4
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The effects of two persons who do not exercise Qi-Gong were observed as
control. No effect on LC was observed.
In the next experiment two silicon photocells and two microammeters
1
were used to record the changes in spot intensities. A typical result is :
shown in fig.4. Under the influence of Qi of Amateur T, the intensity of E
beam diminished to 75 % of its original value and the intensity of 0 beam
increased to 124 %.
3. Discussion
When a plane polarized beam incident upon a liquid crystal making an
angle 0 with the optical axis of the LC, the beam will decompose into two
components. One component has its plane of polarization parallel to the
optical axis of LC and the other component has its plane of polarization per-
pendicular to it. Let the intensity of the beam be I (Amplitue A, A=I2 ),
the intensities of the parallel beam and perpendicular beam be I, and Ih resy
pectively. The amplitude of I, is A, and the amplitude of It is A .
Then from fig.4a
A/ =A cos 0,
A =A sin 6.
It can easily be shown that
Ie =I/ .
Io =IL .
If the optical axis of LC rotates through and angle 10 under some extern-
al influences, then the parallel and perpendicular components will become :
(fig.4) A cos (0+10) and A sin (0+10). The intensities I and I become
I - 2(sin 6) (cos 0)I AO=I-ATe,
I + 2(sin 0) (cos 0)I 40=I +AI ..
The increment I equals to the decrement Ie , and AI /I =2 tane 40.
In our case, 0=45°, AI /I =25 %, then ABN7.
That means, under the
influence of Qi from Amateur T, the optical axis of IC rotates through an
angle about 7º, hence the molecules of LC rotates about 7º.
4. Additional experiments
The molecules of nematic liquid crystal can rotate in an other way --
rotate about their z-axis (fig.6). According to the law of double refrac-
tion, n decreses but n remains invariant. As a consequence, the deflec-
tion angle of E beam decreses, and the E beam moves upward. Part of the
beam moves out of the reception area of the photocell, the intensity of E
beam recorded by the photocell decreses.
1
was 13%, we can calculate that the angle of rotation is approximately 9.
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AL
/A
/A
Ap
Áll
optical axis
optical axis
Fig. 5.
Z - axis
١
1
4
i
1
Fig. 6 Rotation of LC
molecule
-
.
5. Conclusion
The effects on LC double refraction power induced by the Qi from 14 Qi-
Gong amateurs were observed, 7 of them showed distinct effects. As control,
the effects on LC by 4 non-exercisers were examined, none of them gave any
perceivable effects.
The variations of the intensities of 0 beam and E beam can be explained
by the molecular rotations induced by Qi, though the rotation angles are not
very large.
Many doctors believe that Qi-Gong therapy is merely a sort of psycho-
therapy, the so called Qi itself has no therpeutic effect. Our experiment
shows that Qi has real physical effects on non-living molecules. It strong-
ly supports the viewpoint that Qi-Gong therapy is not merely a psychotherapy.
This work has presented at the affiliated hospital of Harvard Medical
College and at the Long Island Jewish Medical Center, N.Y. in september 1985
when the Chinese Qi-Gong Science Delagation visiting U.S ..
Aknowledgement
The liquid crystals are afforded by Prof. Tong Shoisheng. Liu Zhiyong,
Qian Xun, Zhong Yi, Ren Suqing and Tain Yin take part in the experiments. The
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authors express their gratitude for their help.
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I
start
stop
1
1
.
10
11.
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1
21
t (min)
13
14
15
IG
1 7
19
0
2
3
4
5
6
7
9
10
11
12
Fig. 7
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13%
E
1
1