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  1. Is anyone listening and watching VLF whistlers on a Real Time FFT Audio Spectrum Analyzer ? It's called Natural Radio. Using a vertical whip aerial or such and an audio amplifier with a notch filter at 50/60 Hertz to suppress mains hum.
  2. I know a lady of 80 who has never smoked in her life, nor was she brought up in a smoky home. Yet, she has Asthma and COPD too. I believe it is quite rare to get COPD without smoking though.
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