CROPCIRCLES BY ELECTRIC AND MAGNETIC FIELDS
An exercise in electromagnetism
1. IONS PUSHED TO ONE SIDE OF THE STALK
2. A BOL AS CIRCLECURRENT
3. BOLíS IN VERTICAL MOTION - THE LORENTZ FORCE
4. BOLíS IN VERTICAL MOTION - PART 2
5. THE SUPERBOL AND ALTERNATING CURRENTS
6. HORIZONTAL MOTION
8. THE EARTHCURRENT
9. THE EARTHCURRENT - PART 2
10. MAGNETIC DUST
11. BOLís OF MAGNETIC DUST
12. THE FRACTAL BOL
13. MAGNETIC DUST SUCKED IN AND SPRAYED OUT
14. THE END
From only a constant earthcurrent the crop experiences no Lorentz force since the crop isnít moving with respect to the earthcurrentís magnetic field.
Fig. 9.1This is seldom observed. But in combination with a magnetic field that downs circular one could obtain a spiraled downed cropcircle and that is observed often enough.
So we want to sum the magnetic field of a rising BoL and that of a rising earth current. That is possible. (see fig. 9.2) Normally we need to transform one of the two magnetic fields to a new magnetic field belonging to the velocity of the other field. Remember we want to regard both magnetic fields to be motionless and then the crop falling downward with one velocity in this sum magnetic field. But in this case this isnít necessary. From Fig. 8.3 en 8.4 we know the BoL will come to a standstill with respect to the earth currentsí magnetic field. That is the case when the velocity of the BoL (1) equals the velocity of the earth current (2).
(1) (2) Fig. 9.2Now we add an alternating current to the earth current in just the same way as we did with the circlecurrent: the maximum of the alternating part doesnít exceed the strength of the constant part. So the earth current will always stream upward, from the earth to the sky, and only differ in strength in the course of time. Maybe it is better to speak of a pulsed current since the current isnít really alternating. It donít have to be a regular alternating (we still speak of an alternating part of the earth current), nor in time nor in strength.
One possibility immediately emerging is that the earth current may drive the circlecurrent by induction. We accept this to be so from now on; we have no better.
If the strength of the earthcurrent varies between 6 and 10 (just illustrative numbers!) then the direct part has strength 6 and the alternating part varies between 0 (non-existent) and 4. One can think this decomposed too as a direct part of 8 and an alternating part that varies between -2 and 2, just like an ordinary alternating current: 8 - 2 = 6 and 8 + 2 = 10. The result is identical. The direct part of 8 doesnít contribute to the induction that drives the circlecurrent of the BoL.
The magnetic field of the pulsed earthcurrent has a different strength from moment to moment, but it would at any moment keep its shape from fig. 8.2; the magnetic field of a half-regular pulsed earthcurrent still consists of concentric circles. But it is emitting electromagnetic radiation then - computation and/or simulation is needed.
In the mean time I have a more substantial proposal about what keeps the circlecurrent and the whole BoL in shape. Thatís on the next page.
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