B LED light and guitar string (strobe light effect)

AI Thread Summary
The discussion centers on the interaction between LED lights and the oscillation of guitar strings, specifically the low E string tuned to B at approximately 62 Hz. It is noted that LED lights flicker at around 120 Hz, which contributes to the visual effect of the string appearing in two positions rather than stationary. The phenomenon occurs because the flicker rate of the LED light is higher than the frequency of the string's oscillation. Participants agree that this flickering could potentially assist in tuning the guitar string. Understanding this relationship between light frequency and string motion can enhance tuning techniques.
nmsurobert
Messages
288
Reaction score
36
I've trying to explain this to myself but I know I'm missing something.
I tuned the low E string to B. The frequency of that note is about 62 Hz. When I play that note under the led lights in my backyard I can see the string oscillate back and forth.
After doing some reading, the LED light flickers about twice that of what the house is putting out. So the led light is flickering at 120 Hz. Is that why I see the string in two opposing positions and not in a stationary position? If the string oscillated at 120 Hz would it appear stationary?
Here is a video of what I'm talking about...
https://1drv.ms/v/s!AgZi6Wn97aMQg235QWqKNXhVGwwy
 
Physics news on Phys.org
You are correct. You might be able to tune your guitar using the LED, at least one string.
 
kuruman said:
You are correct. You might be able to tune your guitar using the LED, at least one string.
Awesome! Thank you.
 
Thread 'Question about pressure of a liquid'
I am looking at pressure in liquids and I am testing my idea. The vertical tube is 100m, the contraption is filled with water. The vertical tube is very thin(maybe 1mm^2 cross section). The area of the base is ~100m^2. Will he top half be launched in the air if suddenly it cracked?- assuming its light enough. I want to test my idea that if I had a thin long ruber tube that I lifted up, then the pressure at "red lines" will be high and that the $force = pressure * area$ would be massive...
I feel it should be solvable we just need to find a perfect pattern, and there will be a general pattern since the forces acting are based on a single function, so..... you can't actually say it is unsolvable right? Cause imaging 3 bodies actually existed somwhere in this universe then nature isn't gonna wait till we predict it! And yea I have checked in many places that tiny changes cause large changes so it becomes chaos........ but still I just can't accept that it is impossible to solve...
Back
Top