Title :
Thermal noise, motional electromotive force, and electric fields in the human body
Author_Institution :
Gordon McKay Lab., Harvard Univ., Cambridge, MA, USA
Abstract :
The human body is a parasitic antenna in which currents and electric fields are induced when it is near a 50-60 Hz transmission line or a 10-30 kHz transmitter. In a paper by Adair (see Phys. Rev. A, vol.43, p.1039-48, 1991) it is stated that "any effects on the cell level of fields in the body generated by weak external ELF fields will be masked by thermal noise effects and, hence, such fields cannot be expected to have any significant effect on the biological activities of cells." In the same paper it is stated that "a field E will be generated throughout the body by moving through the Earth\´s field B/sub e/, at a velocity v; E=B/sub e/v. The magnetic field that a cell passes through from the walking of its host through the Earth\´s field in the US has induced... electric fields far larger than the fields from power lines." These assertions are examined.
Keywords :
biological effects of fields; electric fields; electric potential; electromagnetic induction; geomagnetism; power transmission lines; thermal noise; transmitters; 10 to 30 kHz; 220 kV; 440 kV; 50 to 60 Hz; Earth´s field; VLF; biological activities; cell level effects; electric fields; human body; induced currents; induced electric fields; magnetic field; motional electromotive force; parasitic antenna; power lines; power transmission lines; thermal noise; velocity; weak external ELF fields; Cells (biology); Earth; Geophysical measurement techniques; Ground penetrating radar; Humans; Noise generators; Power transmission lines; Thermal force; Transmission line antennas; Transmitters;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631779