John Clarke

John Clarke: Author, Scientist,…

John R. Clarke, Ph.D. (born November 20, 1945) is an American scientist, private pilot and author. He served as Scientific Director at the United States Navy Experimental Diving Unit (NEDU). Clarke is recognized as a leading authority on rebreather engineering. He has an extensive academic career in biological and physiological sciences.

Navy Air 79

End of an era II

Below you’ll find some pictures took by Doug Elsey that were commissioned by Cochran during the 2011 deep expedition and a few iconic advertisement form Cochran throughout time in Sport Diver Magazine.
Honouring Mike’s work.

Mike Cochran

End of an era, Cochran Undersea Technology is no more

NAVY and Mike:
One of the leader in dive industry has closed the door. It is sad moment, because much of the investigations, conversations and technologies that was furge during decades aren’t available anymore. As tribute I’m going to publish a series of articles that reflects decades of investigations and advancement and development.

Bill Hamilton

Bill Hamilton

An underwater physiologist with deep roots in the commercial and scientific diving industries, in the late 1980’s he suddenly found himself without a challenge. “They had pretty much learned how to do what they needed to and so weren’t doing much in the way of physiological studies,” says Hamilton.

World Record Rebreather Dive Oct 28th 2004 (Author: Dave Shaw)

If you’re frequent reader, you’d noticed that we review events occurred at the diving community. Because history should be studied and comprehend, for two main reasons: first, “learn from it” and secondly, “to know where we came from”. Without further ado, lets get into this wonderful article lost in time over the net (printed as […]

Scuba_Diving

Ascent Rate, 60ft./min.?

Have you ever asked to your instructor how was calculated/ came-up-with the ascent rate of the tables or computer that you used? Do you think it reflects basic fact of human physiology? Well, the short answer is no. The selection was made by the USA NAVY based on a compromised between work and safety. At […]