With gripping storytelling, and radiating with intimacy, Into the Planet will transport you deep into the most exquisite, untouched corners of the earth.
Author Jill Heinerth
The Thai Soccer Team Cave Rescue explained in everyday language by cave diver Jill Heinerth. Jill is a cave explorer and friend/colleague of several Thai cave rescuers including Australian Doctor Richard Harris and UK Cave Rescue Specialist Rick Stanton.
Regulator free-flows are one of the greatest hazards when diving under ice or in very cold water (less than 4°C). The condition is caused by the sudden drop in pressure as air passes from the cylinder through the first stage. When high pressure air passes through the first stage, it hyper-cools the metal moving parts.
I have never figured out why so few North American technical divers wear helmets. Perhaps helmets never reached the Pantheon of hip here. Divers in other parts of the world would never consider exposing their scalps to the ceiling of a cave or wreck without protection.