Issue |
Europhys. Lett.
Volume 59, Number 4, August 2002
|
|
---|---|---|
Page(s) | 514 - 520 | |
Section | Electromagnitism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
DOI | https://doi.org/10.1209/epl/i2002-00136-9 | |
Published online | 01 August 2002 |
Observation of scalar longitudinal electrodynamic waves
1
ETHZ, Institute of Astronomy - Scheuchzerstrasse 7,
CH-8092 Zürich, Switzerland
2
Weiherdammstrasse 24, D-78176 Blumberg, Germany
Received:
18
February
2002
Accepted:
14
May
2002
Theoretically scalar potential Φ waves with a longitudinal
electric field in the direction of propagation must
exist. A centrally fed ball antenna, 6
diameter, producing
a pulsating 433.59
spherical source charge, generated
such a wave, that was detected by an identical ball antenna. The
longitudinality of
was demonstrated by intervening a
cubic array of 9 half-wavelength wires, that absorbed the wave
when the wires were parallel (but not when perpendicular) to the
direction of propagation. The signal from the ball antenna
source, placed 4.0
above ground and receiver 4.4
above ground, was measured as a function of distance, yielding
satisfactory agreement with theory, including 2 expected
interference minima produced by an image source induced in the
Earth. Only waves can yield such an interference and can be
reflected from the Earth's surface and vary as the inverse
square of distance.
PACS: 41.20.-q – Applied classical electromagnetism / 41.20.Jb – Electromagnetic wave propagation; radiowave propagation
© EDP Sciences, 2002
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