Cochran Undersea Technology

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. My late friend, Larry Elsevier, sent me these pictures to be shared. At the time I was working with him. Enjoy!

Cochran Undersea Technology

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.

Intro to Ratio Deco

We’re going to review only some aspects of this system, because this is a merely introduction. So, knowing this, lets get into it. This system is based on a statistical approach to decompression schedule (observation), this mean that you must used a set of standardized gases for a particular range of depth that were chosen […]

Pelagian approach to Instant Cell Validation

Pelagian approach to Instant Cell Validation- A pro active way to really find out if the sensors make sense is to have the diluent FgO2 x ambient pressure pre calculated in 5 m increments on your wrist slate or wet notes. Then go to the nearest depth and exhale half a breath from your nose and inhale slowly. If you inhale very slow for 10 seconds you will get a very accurate reading.

AAUS Logo

Mike Anghera, Diving Safety Officer

Mike Anghera Interview
The UCLA Scientific Diving Program provides training, logistics and support for faculty, staff and student reseachers at UCLA. All diving policies and procedures are based on the diving standards set forth by the UC Los Angeles Diving Control Board and the American Association of Underwater Scientists. All research diving projects and divers diving under the auspices of UCLA must be qualified and authorized according to the UCLA/AAUS Standards and abide with the current version of the UCLA Diving Safety Manual.

Learning throughout experiences

My kid and I went fishing and snorkeling the past weekend. We did what in modern parental psychology is called: “quality time“. But what is important with these kind of activities is what both may learn from each other and the opportunity to answer all kind of weird questions that my kid may had to… […]

SSI new Advanced Wreck Diving Certification

SSI is happy to announce the release of a new Advanced Wreck Diving certification. The Advanced Wreck Diving program provides divers with the training necessary to independently plan and conduct limited penetration, no-decompression dives within the daylight zone, to a maximum depth or linear distance of 40 meters/130 feet, and using specialized overhead environment equipment […]

A conversation with Bruce Konefe: the life of an explorer

BRUCE KONEFE Born in Dearborn, Michigan – 27 March 1961 Graduated from Algonac Michigan in 1979 Four years U.S. Marine Corp as a Combat Engineer (1981-85) Learned to dive while stationed in Okinawa Japan (1981) Became full time scuba instructor in 1994 (PADI OWSI) Become technical diver (ANDI) in 1995 Appointed NSS CDS Safety Director […]

techdeco

TechDeco The new app on the block, and it is good!

Are you looking for a decompression planner app for Android? Look no farther! Disclaimer: This is only for Android and I don’t know the developer. The user interface (UI) is quite simple but effective, this includes the display and how the user interact with the input and output information. Everything needs to be manage through […]

SSI Water Safety Assistant, Pool Lifeguard, Inland Open Water Lifeguard or Beach Lifeguard or qualify as Lifeguard Instructor

SSI is proud to announce that the German Association for Pool and Swimming Operations officially confirmed on March 01, 2019 that SSI Lifeguard Instructors are qualified to certify the “rescue proficiency” to personnel under regulation 94.05. The German Association for Pool and Swimming Operations sets the regulations and standards for all public pools in Germany. […]

Update

Education is the main vehicle of change, give us knowledge of out surroundings so we can make informed decisions.

SSI News

CCR program development for the rVO units, this in accordance with The Rebreather Training Council (RTC). RTC is the body representing training agencies providing courses for divers using rebreathers. The RTC has just published its first training standard which indicates the minimum requirements for a level of training. This first standard is named the RTC Rebreather […]

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.

My son enjoying the beach

Snorkeling

Diving has all the required elements to be a family activity. If you want to introduce your kids to diving, they can start doing snorkeling at an early age. My son’s first contact with the water was when he was 9 months old, doing a series of exercises that helped him later on to familiarize […]

Understanding nucleation as a process and what divers can do to mitigate it.

Wednesday letter What’s new: I added the following text on the physiology course: Divers have a generalized concept that decompression bubbles form with ascent and reduced its sizes with a decrease in ambient pressure but this isn’t completely accurate, tiny microbubbles are already present prior depressurization. Which means that two factors should be present for […]

Update, January 20, 2018

Hello world! Welcome to Wednesday Saturday Letter, a list of what I’m doing or pondering. What I’m reading — Michael is a wonderful and accomplished tech diver, under his belt have inspiring and delighting diving articles. Recently he published on FaceBook a list of them. Enjoy!   About Michael: I write, play music, make art, produce […]

Update, January 10, 2018

Hello world! Welcome to Wednesday letter, a list of what I’m doing or pondering. What I’m learning- it was a surprise to find this (https://youtu.be/JlX4yuP3XK0) wonderful channel on YouTube. The channel is promoted as a calisthenics learning project; which is, a very good description of it. But it is also about personal growth. I’m doing […]

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 […]

Update, Dec 12, 2017

Hi All! Welcome to Wednesday letter, a list of what I’m doing or pondering.  What I’m reading — I’d read this article about how different dive computers give you different results even when they used the same algorithm. The author concluded in his article: “The objective was to demonstrate that tables and computers give different […]

Update, Dec 6, 2017

Hello world!   Welcome to Wednesday Letter, a list of what I’m doing or pondering.    What I’m reading —   Although you may think that the diving research has stop, nothing is more far from the truth; the scientific diving community is working hard.   So to give you a glimpse of what is […]

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 […]

Then and Now: How learning to dive has changed

Do you want to learn Scuba Diving, read this first: Today’s instructors are teaching in a different academic environment than past years. More than 25 years ago the diving community was led by oils companies, a handful of few small civil communities and Navy. The oil companies invested a lot in researched, in developing technical […]

UNESCO Convention on the Protection of the Underwater Cultural Heritage

Understanding the importance of underwater archaeology

Understanding the importance of underwater archaeology: An abstract The sea level has influenced humans since the beginning. The action associated with the rise of body water (glacial- interglacial climatic cycle) changed the paleography of the continental shelf which means that one-time marine environments now can be populate it by human (even for prehistoric human occupation). […]

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