The 4th of July is coming up and we all know what that means... American flags, country music, fireworks, and long neck bottles! If after a few drinks at the BBQ you notice Luke Bryan's voice getting a little sweeter, it may just be the 200 Hz Helmholtz resonance of all those empty bottles!
Recreating a famous test our lab performed back in 1968, we tested 221 empty glass bottles, tops open, to observe how they absorb sound. What do you think happened? Read our report to find out! Download the test report at the link below to add to your library and share with your friends and colleagues.