Boys 👑 on Instagram: "This video demonstrates a community-driven acoustic experiment performed with modified plastic water bottles. ​The Subject ​The primary objects are standard clear plastic bottles equipped with specialized pull-top caps. These caps are modified or manipulated to create a tight seal that responds to rapid internal pressure changes. ​The Mechanism ​By squeezing the bottle forcefully, air is compressed and expelled through the narrow aperture of the cap. The friction and vibra