Video. PADI IDC physics - Pressure Volume Relationship

Pressure volume relationships - PADI Open Water divers learn the basics of this on their very first academic session.
However, it's also a subject that causes confusion with many PADI dive professionals.
Here is a video that I hope helps to put things into perspective.
The video is from my online FULL IDC Preparation course.
If you find the video useful, I'd really appreciate a coffee!