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Author Topic: "stunning bass-string shot"  (Read 1509 times)

Dave W

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"stunning bass-string shot"
« on: August 08, 2009, 10:30:45 AM »
Frequenzy of the bass strings and high shutter speed of the camera lead to this suprising string-wobble footage.

There is no slowmo applied to the take. Sound is original.
video was filmed with a Canon 5D MarkII , Nikon 50mm lens on 1,8f.

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chromium

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Re: "stunning bass-string shot"
« Reply #1 on: August 08, 2009, 11:10:31 AM »
Neat how you can clearly see all of the partials in the string's vibration.

There's some cool stuff on vimeo
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nofi

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Re: "stunning bass-string shot"
« Reply #2 on: August 08, 2009, 04:01:24 PM »
you can line up your bass strings with a televsion screen and see the same thing. hold your bass fretboard up with the strings profiled against the screen and pluck a few with different frettings. oh yeah, the tv must be on. ;)
« Last Edit: August 09, 2009, 04:23:07 AM by nofi »
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ramone57

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Re: "stunning bass-string shot"
« Reply #3 on: August 09, 2009, 10:08:51 AM »
I've done that, it's pretty wild.  iirc, an A# is almost the right frequency to see a 'standing' wave.
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Pilgrim

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Re: "stunning bass-string shot"
« Reply #4 on: August 09, 2009, 01:07:35 PM »
Back in the CB craze days, I had a car with a long whip antenna on the rear bumper.  One night while parked under a street lamp, I happened to swat the antenna as I passed by and watch the a similar display - when whipping it back and forth, I could see 20 antennas, all of which appeared to be stationary.  It's all based on the light wavelength...and in the original above, the shutter speed of the camera.
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ilan

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Re: "stunning bass-string shot"
« Reply #5 on: August 09, 2009, 01:14:33 PM »
You see, physics is fun
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The guy who bought the same bass twice — first in 1977 and again in 2023

nofi

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Re: "stunning bass-string shot"
« Reply #6 on: August 09, 2009, 01:39:13 PM »
this dovetails nicely with my noodling in front of the television theory. ;)
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Highlander

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Re: "stunning bass-string shot"
« Reply #7 on: August 09, 2009, 01:43:22 PM »
Yacannychangethelawsafisics...
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ilan

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Re: "stunning bass-string shot"
« Reply #8 on: August 10, 2009, 05:58:44 AM »
Quote from: nofi on August 08, 2009, 04:01:24 PM
you can line up your bass strings with a televsion screen and see the same thing. hold your bass fretboard up with the strings profiled against the screen and pluck a few with different frettings. oh yeah, the tv must be on. ;)
Closing one eye also helps seeing the effect.
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The guy who bought the same bass twice — first in 1977 and again in 2023

OldManC

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Re: "stunning bass-string shot"
« Reply #9 on: August 13, 2009, 05:43:11 PM »
OK, I just posted this on my Facebook profile. That is really cool Dave. Thanks!
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