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Found 4 results

  1. I was curious about it, found this article, and was thoroughly entertained! They can regenerate scilia and receptors! https://www.geoexpro.com/articles/2011/03/marine-seismic-sources-part-viii-fish-hear-a-great-deal Here’s a quote: ”Fish do not need an outer or middle ear, since the role of these structures in terrestrial vertebrates is to funnel sound to the ear and overcome the impedance difference between air and the fluids of the inner ear. Since fish live in water, and have the same density as water, there is no impedance difference to overcome. Fish do h
  2. NPR has a story about Mosquito, a high frequency outdoor generator being used by some 30 cities to discourage teenagers from staying in parks at night. According to the manufacturer's website, Mosquito generates an 18 kHz signal -- at that frequency, presumably a sine (because where would the harmonics live?) -- with an AGC to keep it 5 dB above ambient. No indication whether their AGC looks at broadband or just 18 kHz... but if it's broadband, then the noise is going to be a lot more obvious up there than +5 dB would suggest. According to NPR, "anyone over age 25 is supposed to b
  3. Today's NYT has an article about the neuro damage suffered by US diplomats in Cuba and their families, and subsequently reported by some Canadian diplomats. Their reporter -- who doesn't seem to know much about acoustics or hearing -- is basically selling a story of mass hysteria. Evidence includes a history of isolated cases of individuals with psychosomatic ailments, quoting researchers who say "well, we didn't see changes in brain structure", and psychiatrists who say "the brain has powerful effects on the body, and brains can be triggered by non-physical events". And of course
  4. I was sitting next to a nutritionist on a plane last night. He noticed my ear plugs and said it was good to see a young person taking care of his ears. After telling him I was a sound engineer he began to tell me ways to maintain hearing health. Niacin (B3) is a vasodilator and is especially good for the capillaries in the head, ears and cochlea, and may reduce the risk of tinitus. Ginkgo is also a good supplement to take. Thought I would pass on the info to you soundies, if you didn't know it already. To your health, Ben
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