experiment with a liquid meter, open and turned upside down. it plunged to -55 m with 1 liter of air inside. the water pressure push up the air, compresing it to 154 ml at 55 m depth. the air expands while climb back up to 1 liter.
what happens to the lungs of a freediver during a deep dive, boyle´s law in action
Why don't whales get the bends, when divers can? - Naked Science Scrapbook
BBC Real Men Series Saturation Diving
Physics of SCUBA
Bottle Diver Science Experiment
William Winram 145m Freediving World Record (VWT)
Freestyle - 6-Kick Swim
Top 5 Scuba Diving Facts