I state my hypothesis, and I give reasons for my hypothesis (increased pressure from the water on the walls of the vessel will dampen vibrations, and thus decrease the amplitude and duration of a vibration from an external source). This dampening force, if not linear, will at least have a...
Thank you for the excellent reply. What if we changed the experiment to an enclosed space, like an oil drum or something. Assume that I'm banging on the side wall, at the very top. In this situation would the resonance frequency change depending on how full the drum was?
Yes Tom, I’m aware that the tone is different depending on how much water is in the glass. That doesn’t answer my question, which again is:
Are amplitude and vibration duration inversely correlated with water in the glass, such that you could calculate water in the glass from the sound alone?
FYI, this isn't a homework question. ;-) I'm a grown man asking because it relates to a project I'm working on.
I understand that my question was a bit nebulous, so I'll distill it down. Let's assume the walls of the wine glass were perfectly cylindrical, and let's assume that the glass was...
That's the thing. Subjectively, it's not hard to tell the difference between a full and nearly empty wine glass. What I'm looking for is objective data that will back this up.
I mean the same several numbers would come up again and again. If you watch that video, you'll see what I mean. For example, when I first started the experiment the glass was half full and the most common frequency I saw was 301.13. Then I added more water to the glass and I expected to never...
Here’s my experiment: I have a wine glass half full of water. I tap the edge with a metallic object to make a ringing sound. I recently bought a nice microphone and some acoustic software (Spectrum Analyzer Pro Live) and I’m trying to analyze the resulting sound to determine the resonance...
Thanks for the replies. What is much more complex about the way steel resonates? Can you elaborate a bit on that? Also, would the relationship between the water in the drum and the pitch be linear? I would think it would...
Perhaps my question has to do with Helmholtz resonance, perhaps not. That's why I'm here. ;-) Here's my question:
Say you have a large steel oil drum that is half full of water. If you bang on the side of the drum towards the top with another metallic object, what exactly is making the sound...