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Slinky Star Wars Sounds

You will need:

 

Instructions

  1. Push the end of the metal slinky through the base of the styrofoam cup.

    Slinky pushed through a foam cup
    Slinky pushed through a foam cup 
     
  2. Hold the top of the styrofoam cup as pictured so that the metal slinky dangles downwards to the floor.

    How to hold the slinky star wars sound maker
    How to hold the slinky star wars sound maker
     
  3. Gently shake the cup from side to side. You should hear the sound effects that can be similar to those heard in Star Wars! Try bouncing the metal slinky up and down on the floor to get a sharper sound.


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What is going on?


The original blaster sounds heard in the Star Wars were made by the foley artist Ben Burtt who repetively hit the high tension wires of a radio mast with a wrench! These sound samples were then taken back to the studio to be eventually heard on the film's soundtrack.

In the case of the metal slinky and the styrofoam cup, you;re simple transferring vibrations up the slinky into the styrofoam which also then vibrates. The metal slinky vibrates against foam and creates part of the buzz that you hear, with the rest of the sound being formed by the foam itself vibrating and the sounds echoing within the cup. the larger air space within the cup caused the sound to amplify.

Want to know more about waves?
Fizzics runs Science of Sound school workshops. 
Find out more here!

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