Man-made electrical and electromagnetic fields are everywhere: high voltage power lines, cellphone repeater antennas, radio and TV transmitters and repeaters.
Indoors, wiring inside the walls, micro-wave ovens, TV sets, computers, cordless telephones, even clock radios emit electrical fields which criss-cross our homes constantly, even when the appliances are turned off. In public buildings, miles of wiring at high voltage also produce electrical and magnetic fields proportionate to the voltage and consumption.
All of this is what is commonly known as EMR or electrosmog, widely suspected to cause damage in living organisms: and research shows that ambient levels are continually increasing. Especially recognized as potentially dangerous are:
- Mobile phone repeaters at a distance of less than 100 meters, or more if in line of sight;
- High-voltage powerlines which emit strong radiation at about 50 Hz up to 50-100 meters;
- Home and office wiring within the walls, which forms an electrical field that extends to 30cm and a magnetic field that extends to 50cm.
What is less known is the destructive effects these electromagnetic waves can have on string instruments. Electromagnetic energy, at certain wavelengths and intensities, could theoretically cause the wood cells to enter into resonant vibration. While not detectable to the naked eye, this vibration could cause the cellulose to weaken through fatigue, in the long term causing a loss of sound quality and a gradual enfeeblement of the structure of the instrument.
Do any fellow v.comers have any further information, or have done research on this subject?
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