The Visual Patterns of Audio Frequencies Seen through Vibrating Sand
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The Visual Patterns of Audio Frequencies Seen through Vibrating Sand
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Re: The Visual Patterns of Audio Frequencies Seen through Vibrating Sand
#2No.
Re: The Visual Patterns of Audio Frequencies Seen through Vibrating Sand
#3They have this at the Exploratorium! Definitely cool to play with.
Re: The Visual Patterns of Audio Frequencies Seen through Vibrating Sand
#4It is interesting, but it's a standard way of demonstrating normal modes, or the applications of eigenvectors. I would think most physics and engineering undergraduates have studied this.
That's not to say you shouldn't watch it, but just to put it in perspective - this is a topic studied in the 1st/2nd year of university, not a poorly-understood topic for research.
Re: The Visual Patterns of Audio Frequencies Seen through Vibrating Sand
#5Couldn't you use something like this on a small scale to implement a better random number generator for computers?
Looks like all it would take is a tiny speaker, a thin metal plate, and something that reads that metal plate like a QR code. The tone could then be randomized by a psuedo-random number generator, and even though the shapes generated are similar, they are never quite identical.
Re: The Visual Patterns of Audio Frequencies Seen through Vibrating Sand
#6Bold title for WWDC day.
Re: The Visual Patterns of Audio Frequencies Seen through Vibrating Sand
#7It is interesting, but it's a standard way of demonstrating normal modes, or the applications of eigenvectors. I would think most physics and engineering undergraduates have studied this. That's not to say you shouldn't watch it, but just to put it in perspective - this is a topic studied in the 1st/2nd year of university, not a poorly-understood topic for research. https://en.wikipedia.org/wiki/Normal_mode
Is this essentially the same as a standing wave, except 2-dimensional?
Re: The Visual Patterns of Audio Frequencies Seen through Vibrating Sand
#8I wonder if that could be done at scale with a massive art installation and marbles.
Now that would be mind blowing to watch.
Re: The Visual Patterns of Audio Frequencies Seen through Vibrating Sand
#9It is interesting, but it's a standard way of demonstrating normal modes, or the applications of eigenvectors. I would think most physics and engineering undergraduates have studied this. That's not to say you shouldn't watch it, but just to put it in perspective - this is a topic studied in the 1st/2nd year of university, not a poorly-understood topic for research. https://en.wikipedia.org/wiki/Normal_mode
Is this essentially the same as a standing wave, except 2-dimensional?
Yes, the sand settles into the nodal lines of the pattern of vibration on the plate; those are the places where the plate is not moving. The same frequencies on a circular plate will produce different patterns.
Re: The Visual Patterns of Audio Frequencies Seen through Vibrating Sand
#10Bold title for WWDC day.
Because some shiny new gadget will impress you more than a beautiful visualization of the mathematical structure of nature?