Remote Dive Site Contingencies: When Evacuation Is Not An Option

As secret agent James Bond once sagely observed to Q, who supplied his special equipment and was complaining that he was bringing it back damaged, “It’s hell out there in the field.” Divers aren’t dealing with jet-packs, ejection seats in Aston-Martin sports cars, or the best way to use the strangling wire released from the … Read more

Historical Perspectives on Dive Tables and Decompression Models

“The reliability of a decompression table or procedure is not determined by any mathematical process, but by what works in practice. What works…is what works!” —  John Crea III “Any passive decompression device can only inform the diver of his or her decompression status. How that information is used is the responsibility of the diver.” — … Read more

Is there a disconnect between DAN’s Mission/Vision Statements and the content of Alert Diver magazine?

The new quarterly Alert Diver, published by Stephen Frink and company, unarguably is a handsome magazine that makes its prior incarnation appear a bit of an ugly stepsister. Then again, it now appears to have a lot more money to play with. But, is it straying from DAN’s stated raison d’être? The DAN Mission/Vision Statements … Read more

Demystifying Recompression Chambers

Many divers have seen a chamber either in photographs or in real life, but very few have ever had occasion to be in one unless they were being treated.  As a result a certain “mystique” has developed about chambers and many divers regard them as hostile and menacing environments.  Briefly, we would like to acquaint … Read more