What The Strings Of An Upright Bass Looks Like

Submitted by: fancylad 4 years ago in Science

stunning bass-string shot from urbanscreen on Vimeo.


Whoa, wobbly!
There are 14 comments:
Female 2,602



Need some more sticky tape, guys?
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Male 23
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Male 15,832
A video is just series of still images at ~24 frames per second. If the exposure time for each image is short enough, it can freeze a moving object without blurring it. When the frame rate is near an even factor of the frequency of the vibrating string, it can appear to slow down or even stop. It`s the same phenomenon seen in old western movies when the stage coach wheels appear to be turning backwards.
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Female 1,236
Nice
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Male 164
its called hertz
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Male 1,084

Aliasing Sines
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Male 307
8Bit and Whodat are both correct - this is a matter of the camera as well as an optical illusion.

The stringed instrument family of violin, viola, bass and cello are strung at approximately 1600 lbs of pressure per square inch, resonating at 200hz to 3.5khz for violin, 125hz to 1.5khz for viola, 63hz to 630hz for cello and 40hz to 200hz for bass.

At these frequencies, it is impossible to follow the actual movement of the string without a Phantom camera, for the most part, but still - awesome video.

And yes - I was a music nerd playing these instruments for 35 years... ;-)
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Male 3,909
Pretty much all stringed instruments do that, you just can`t see it with the naked eye because it`s vibrating so fast. This reminds me of the video for Pantera`s "5 Minutes Alone"
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Male 1,497
8BitHero is right. They vibrate really fast so it`s just an optical illusion. You normally don`t see it because you have to get close and have a lighter more distant background. Any stringed instrument will do this. A violin you might not see wobbles as much vs an upright bass.
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Female 2,509
Ooops.. thought you meant this:

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Male 550
Don`t know enough about wavelengths on string instruments, but i would think it`s a question of the scanning rate of the camera creating this illusion, so i go with 8BitHero
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Male 37,888
I had NO IDEA they did that! I thought there was just one big wobble from top to bottom, not a bunch of little wobbles along the way...
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Male 5,413
And then I-A-B shines...

It doesn`t actually wobble, it`s more of an optical illusion
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Male 20,196
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