We filled a violin with a gas much heavier than air; will it change the sound?
Dog whistle video: https://www.youtube.com/watch?v=518-RzNOjxM
Help me make videos by donating here: https://www.patreon.com/CodysLab
Follow me on Facebook: https://www.facebook.com/codydonreeder
SubReddit: https://www.reddit.com/r/codyslab/
Twitter: https://twitter.com/CodysLab
