psi20 Posted April 22, 2004 Share Posted April 22, 2004 There is this black string that used to be my belt. Well it's not a string exactly. It's a stretchy, elastic material. I tied this string to my back pack and string it. It makes sounds. It vibrates very fast. When it vibrates, I can see a meshing of red and blue. I don't know where this red and blue comes from. Can someone explain this phenomena to me? This red and blue appearing when I pluck my guitar. Link to comment Share on other sites More sharing options...
NSX Posted April 22, 2004 Share Posted April 22, 2004 is the black shiny? maybe its the red & blue reflecting off [edit] i just saw your post psi... i'm going to do some phys now... maybe i'll hit a bright light later and have an explanation for you Link to comment Share on other sites More sharing options...
psi20 Posted April 22, 2004 Author Share Posted April 22, 2004 I don't think the black is what you call shiny. Link to comment Share on other sites More sharing options...
Radical Edward Posted April 22, 2004 Share Posted April 22, 2004 depends on the material properties of the elastic I suppose. the black is most likely made up of a number of dyes, and it might be these you are seeing. Other than that I am not sure. Link to comment Share on other sites More sharing options...
Radical Edward Posted April 22, 2004 Share Posted April 22, 2004 how about tying a weight to one end and spinning it round in a circle, see if you get the same effect. also stretch it and look under a microscope or magnifying glass. Link to comment Share on other sites More sharing options...
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