 Welcome back to Kids Fun Science. My name's Ken. Today's experiment is Star Wars sounds with a slinky. What you need for this experiment is a combination wrench, a string, cups, and a slinky. This experiment is how vibrations make sounds. With just a little slinky it doesn't make much sound at all. But when we add the cyrofoam cup it starts to act like a speaker and when you gently shake it the cup from side to side you should hear the sound effects that are similar to the ones heard in Star Wars. Now using the combination wrench it even adds more. The original sound blasters heard in Star Wars were made by the artist Ben Burt who had repeatedly hit a high tension wires and a radio's mass with a wrench. These sounds were samples and they were taken back to the studio and eventually heard on the film soundtrack. Which is pretty cool. The case of the metal slinky in a styrofoam cup is simply transferring vibrations up the slinky into the styrofoam which then also vibrates. The metal slinky vibrates against the foam and creates part of the buzz that you hear. With the rest of the sound being formed in the foam itself vibrating and the sound echoing into the cup. The larger the airspace within the cup causes the sound to amplify. This time I'm using a plastic cup or red solo cup and you can hear when I hit the metal wrench against the metal slinky that it makes a totally different sound which this one actually I think sounds a lot more like the Star Wars itself. Which is pretty cool. This time I'm using a paper cup compared to the plastic cup or the styrofoam cup and you can hear once again here is a totally different sound. So for the last experiment I tied string to each end of the slinky. You can do this multiple times for multiple people. Put a loop around each finger and then I'm gonna put my fingers in each ear and then move the slinky back and forth to make the vibration sounds come up to my ear. So here I am. I've got it set up on each end. I'm going to take the fingers put them in each hole and then I'm going to put them in my ears and here's the experiment now. I feel like I'm in Star Wars right now. That's awesome. Very easy, very fun. I hope you enjoyed this experiment. If you did remember to click thumbs up and to subscribe and thanks for watching.