On Diving Deep, Breathing Air
  it’s what we did because that’s all we had

Twenty years ago I met an old French diver at the DEMA show who was displaying oil paintings of various wrecks he’d dived in Bonaire. I didn’t recognize any of them and he told me where they were to be found. They were all very deep. I asked him if he used a helium mix … Read more

The Tragic and Un-Necessary Death of Brian Bugge

before you become a rebreather diver, you’d better read this Conventional open-circuit scuba is sold as “not being rocket science.” PADI and its like have made it available to almost everyone. Scuba is fun. It’s for all the family. Once you’ve grasped Boyle’s Law and the repercussions of breathing compressed gas underwater, it’s only a … Read more

Considerations Of Oxygen In Diving Gas Mixtures

Oxygen is the most basic life support system our bodies employ, and yet also has the capacity to cause great harm.  Keller (1946) has called oxygen “The Princess of Gases.  She is beautiful but has to be handled with special care”.  We cannot live without it, but in prolonged breathing exposures or in deep depths … Read more

Rebreathers Offer Diving Advantages – At a Price

modern diving marvels are not for everyone Closed-circuit rebreathers have become very popular with technical divers since they offer the possibility to do extreme dives without the imposition of carrying an enormous amount of gas. I was at the forefront of promoting this new way of diving as far back as 1993. In those days … Read more