30
Biological effects
Fig. 2.10 B: Measured increase in the production (K)
of colicin
by colibacteria as a microwave effect
a)
as a function of the wavelength,
b)
as a function of the intensity of the microwaves,
according to Keilmann
.
____
taken from: ________________________________________________________
: H. L. Konig: Unsichtbare Umwelt (Wetterfuhligkeit), 5. Aufl., Bild 106, S. 111.
Verlag Moos & Partner Munchen, ISBN 3-89164-058-7
Tasks
31
A static field naturally produces no induction and hence no heating will arise. In the case
of alternating fields the thermal effect in experiments is excluded by working with
cxtremly low stimulations. The example after fig. 2.10 B shows the measured increase in
the production (K) of colicin by colibacteria at only 0.01 mW/cm
2
microwave power
.
In addition the example provides the interesting information that obviously only a certain
frequency and it's harmonic waves increase the production, other frequencies on the other
hand remain inactive. Because only minimal field strengths are used it more likely
concerns an information-technical as an energetic effect (curve a). This statement is
supported by the observation that an increase of the intensity not at all necessarily as a
consequence also increases the production (curve b). What the colibakteria need is
obviously neither energy nor heat but only a certain frequency that stimulates the colicin
production or the growth.
Should it really be confirmed that biological effects of electric and magnetic fields can be
produced by certain frequencies and can't happen by an energy transition so the
discussions about limits must seem ample meaningless.
Maybe the one or the other in thought already draws a connection to the acceleration, the
acclerated
growth of kids, which is observed world-wide and stronger in cities than in the
country. It started for approx. 100 years simultaneous with the electrification of the homes
in the towns. In Asia the acceleration and also the electrification have started later.
Other growth stimulating effects like radio waves, X-ray examinations, atomic tests and
provable also the nourishment with vitamin B6 happened only until much later and at the
most could support the actual effect.
But how should a proof be offered when anyway the field strength not at all can have a
decisive influence on the growth of man after the statement of fig. 2.10 B? Which
information is authorative? Where lies the responsible frequency window? Does the
information actually manifest as frequency? Is the authorative influential factor also in this
case not at all noticed and measured?
A lot of pressing questions are still outstanding. But in any case the numerous influential
factors detected in experiments do not at all let themselves reduce to a sole factor, for
instance the nourishment. For a family doctor it may be comfortable to be able to give an
easy explanation: ,,Cause is the nourishment!" With such a reductionism on the other hand
the actual cause stays in the dark and the asked questions in this way won't let themselves
be answered.
32
Artificial fields
Fig. 2. 11: ____ profile of the 50-Hz-field on the ground
at 380kV/1kA in each circuit.
a)
electric field,
b)
magnetic field.
____
taken from: ________________________________________________________
: E. Habiger u. a.: Elektromagnetische Vertraglichkeit, fig. 7.3, page 147 and
Fig. 7.1, page 146, 2
nd
Ed., 1992. Berlin, Miinchen: Verlag Technik.
Tasks
33
2.11 Artificial fields
The scepticism of people feeling close to nature is especially directed against artificial
fields that man can't see nor hear nor smell. Objects of
doubt are first of all the
installations for the creation, distribution and conversion of electric energy.
An essential role plays the fact how close the supplying and the draining conductors are to
each other, so that the respective fields can compensate each other. The worst solution one
can think of is realized at the electrified railway. Here the rails and the earth are used as
the draining conductor for the current while there exists an ample large distance to the
supplying conductor. A compensation is almost impossible thus causing gigantic
interference fields that are detectable even at a distance of 10 kilometers. The increased
putting on of railway engines feeded by rectified current is likely to aggravate the set of
problems because the non-sinusoidal absorption of current is strongly afflicted with
harmonic waves.
With high tension transmission lines (fig. 2.11) the interference field strength is reduced
when the three cables are suspended with only little distance between them. But even the
selected phase order can play a role. Of course the optimal compensation effect is
guaranteed with cables in the earth. But these are expensive and technically not realizable
for such high voltage levels.
In the eighties also the computer screens got in the headlines. The terminals are furnished
with a cathode ray tube and have a very broad radiation spectrum that already starts at 0
Hz. Here already static maximum values of 64 kV/m are measured
!
I'requency range
Measured maximum
30 cm in front of
values E
max
resp. H
max
the screen
static field (0 Hz)
64 kV/m
30 Hz. 60 Hz
10 V/m and
0.2 - 1 A/m
5 Hz - 1 kHz
1800 V/m and
10 V/m and
4 A/m
0,6 A/m
50 Hz - 0,5 MHz
1 A/m
15 kHz-220 kHz
50 V/m and
15 V/m and
1.1 A/m
0,17 A/m
3 MHz -300 MHz
< 0,2 V/m
Fig. 2.11: Electromagnetic
fields from screens