Recent content by sistruguru

  1. sistruguru

    Relative Humidity (RH) affecting atmospheric attenuation of light?

    Interesting, thanks for that suggestion. I'll look more into that
  2. sistruguru

    Relative Humidity (RH) affecting atmospheric attenuation of light?

    ^that first link seemed to be mostly concentrated around electromagnetic waves, correct? It only mentions light a couple of times in the article. I used your search string and came up with several new pubs I had not seen. I'll dig through those. Most seem to be dancing around the immediate...
  3. sistruguru

    Relative Humidity (RH) affecting atmospheric attenuation of light?

    Just so no one thinks the difference might be negligible, I'm doing this in reference to moonlight, at moonrise/ moonset, with the various phases of the moon. Of course a full moon would be the easiest to envision. So the question would be, on the night of a full moon, when the moon is at 170...
  4. sistruguru

    Relative Humidity (RH) affecting atmospheric attenuation of light?

    Ok, so I have another question that online searches have not been able to produce. Everything I've seen online references sound waves, or RF signals, or electromagnetic waves. I know that the reason we can view sunsets and sunrises safely is because of atmospheric attenuation - the amount of...
  5. sistruguru

    I How far do vibrations from a vehicle emanate?Doppler effect?

    lol. Nice, I like having straight up values. Ok. A friend just started discussing the topic with me. In my boat analogy, I was mentioning the fact that if you're on a raft, you don't really sense an approaching speedboat (yes you can hear it, but let's pretend you're deaf). It wouldn't be until...
  6. sistruguru

    I How far do vibrations from a vehicle emanate?Doppler effect?

    Ok, but of course snakes are deaf and don't easily pick up sound waves - they do pick up vibrations in the ground. I figured the physical vibrations of the ground would be greatly slower than the speed of sound. Yes, that's basically the idea, putting your ear to the ground, at what distance can...
  7. sistruguru

    I How far do vibrations from a vehicle emanate?Doppler effect?

    So I have a strange question. I study snakes, which are of course sensitive to vibrations in the ground. A common technique for finding snakes is to drive roads at night. A constant debate that comes up among herpetologists is whether or not the vibrations of the vehicle are causing the snakes...
Back
Top