Hydrogen diving sounds impossible.
Hydrogen is the most flammable gas on Earth, yet researchers and explorers have successfully used it as a breathing gas for some of the deepest dives ever attempted.
In this episode of SCUBA SCIENCE, we explore the fascinating world of hydrogen diving, including why technical divers traditionally rely on helium, what causes High Pressure Nervous Syndrome (HPNS), and how hydrogen may help solve some of the biggest physiological challenges of ultra-deep diving.
We’ll examine the groundbreaking COMEX hydrogen experiments, the development of Hydrox and Hydreliox breathing mixtures, and the recent hydrogen dive conducted by Professor Simon Mitchell, Richard Harris, Craig Challen, and the Wetmules exploration team in New Zealand’s Pearse Resurgence cave system.
Topics covered:
• What is High Pressure Nervous Syndrome (HPNS)?
• Why helium becomes problematic at extreme depths
• How hydrogen reduces breathing gas density
• Hydrogen vs helium for deep diving
• COMEX Hydreliox experiments
• The Wetmules hydrogen cave diving project
• Why hydrogen doesn’t explode underwater
• Could hydrogen become the future of extreme technical diving?
⌚ Chapters:
00:00 Introduction
00:49 Hydrogen as a Diving Gas
01:56 What’s Wrong With Helium?
03:30 Adding Nitrogen
04:36 Enter Hydrogen
07:37 Is Hydrogen Explosive?
08:48 The Wetmules Hydrogen Dive
10:35 Can Hydrogen Replace Helium?
12:38 Conclusion
While hydrogen is unlikely to replace trimix for everyday technical diving, it may play a crucial role in the deepest cave dives and ocean exploration projects ever attempted.
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✅ About Dive SAGA – Scuba diving.
Welcome to Dive SAGA, your destination for world-class scuba diving adventures and education. Led by award-winning SCUBA instructor trainer Nick Derutter, this channel explores the depths of our planet through the lens of history, science, and travel. From cave diving, technical and wreck diving to ice diving and more, Dive SAGA is built for passionate divers.
Whether you’re a beginner dreaming of your first dive or an experienced diver looking to refine your skills, you’ll find value in every episode. Dive SAGA features expert equipment reviews, career insights for aspiring dive professionals, and immersive footage from some of the world’s most breathtaking underwater locations.
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