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General Scuba posts Interviews SCUBA Diving

Bill Stewart

Bill is an enhancer; he understands what needs to be done in the current state of the underwater-world. His love for the Philippines and for the western Pacific Ocean is well known. His passion for photography pushes him to travel the world, not only as an explorer of the underwater world, but also as an explorer […]

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General Scuba posts Interviews SCUBA Diving

John B. Griffith Jr.

A Conversation with a Veteran and a Wiseman It’s difficult to describe John, he is the embodiment of a hero, at the same time a Wiseman and a gentleman. He is veteran, writer and author. He travel the world engagement different cultures and absorbing them. He is an enthusiastic person with a lot to share… please enjoy. Click […]

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Ratio Deco

Ratio Deco or deco on the fly

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, this mean that you must used a set of standardized gases for a particular range of depth that were chosen for […]

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Ciencia del buceo Español SCUBA Diving

El metabolismo es estúpido: un nuevo modelo sobre la formación de burbuja.

05 Feb 2020 | Michael Menduno Traducción: Carlos Lander La existencia y cantidad de burbujas a nivel vascular esta asociada al síndrome de descompresión o embolia gaseosa (EG). Se teoriza que durante la inmersión, las burbujas se desarrollan a partir de pequeños núcleos ya presentes en las cavidades porosas de los tejidos, comúnmente denominado “micronúcleo”. […]

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CCR SCUBA Diving

Poseidon Head made by Underwater Technologies

The Configuration of the head has the possibility to use up to three oxygen cells, two independent power supply sources (battery type: LiPo 18650) and a low-power solenoid Clippard. A discussion about solenoids and Kiss valve: A Kiss valve needs at least between 12-13 bar of pressure to works correctly, Clippart works with a very […]

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SCUBA Diving

AV-Underwater Technologies-reseña

Ordenador de buceo AV Underwater Technologies. Reseña y Cabezal para poseidon MKVI

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Ciencia del buceo Español

Oh Deco, oh Doppler, O’dive: Evaluando la primera herramienta de seguridad para “deco” conocida

Traducido por: Carlos Lander Título Original: Oh Deco, Oh Doppler, O’Dive: Assessing the World’s First Personal Deco Safety Tool- By Michael Menduno Traducido por: Carlos Lander Título Original: Oh Deco, Oh Doppler, O’Dive: Assessing the World’s First Personal Deco Safety Tool- By Michael Menduno Originalmente publicado por: InDepth en Julio de 2020 Disclaimer: Translations between languages […]

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SCUBA Diving

How to replace a solenoid from your Poseidon eCCR

Discussion about solenoid replacement on the MKVI eCCR

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SCUBA Diving

El nuevo orden impuesto

Publicado originalmente el día 18 de Mayo de 2020 COVID-19 Más allá si el virus es natural y trasmitido al ser humano desde un pangolín o, se escapó de un laboratorio en Wuhan o fue creado y esparcido a propósito como parte de una guerra económica, son interrogantes que están latentes en la imagen colectiva. […]

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Interviews

Bill Hamilton interview

Please take the time to review this wonderful article wrote by Joel Silverstein about Bill It’s safe to say that if it weren’t for Bill Hamilton, technical diving as we now know it would not exist. An underwater physiologist with deep roots in the commercial and scientific diving industries, in the late 1980’s he suddenly […]

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Decompression Theory

The concepts behind bubbles mechanics and some ideas

This section is base on Dan Reinders presentation on The Varying Permeability Model which you can find free on our library or at Decompression.org Bubble is a body of gas within a liquid, does the pressure of a gas in a bubble is equal to the surrounding hydrostatic  pressure plus a contribution from surface tension. […]

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Decompression Theory

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

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 the occurrence of DCS, micronuclei and supersaturation. Although our internal body have no […]

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SCUBA Diving

The brain behind FATHOM Dive Systems

Charlie Roberson FATHOM Dive Systems is a manufacturing company that focuses on life-support equipment for underwater exploration. Charlie is the brainchild of FATHOM, a cave diver and explorer, who sought to make products for his own exploration. The company’s goal is to produce innovative, functional, and reliable equipment for underwater exploration. Link to the Podcast […]

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Decompression Theory

Ultrasound devices and DCS subclinical gas phase

Ultrasound devices make it possible to detect subclinical bubbles, the most common Doppler ultrasonic bubble detector. The use of this devices make possible to developed the concept of silent bubbles. It was demonstrated that decompression free of signs and symptoms   in both human and animals could actually produce a gas phase. This clearly shows that there […]

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Decompression Theory

Multi model approach

Support information for Ratio Deco Decompression Procedures There’s a difference between a decompression model and a decompression strategy, one of the best proposition for it is what JP Imbert called a “multi model approach to decompression safety”, other interesting idea is “Ratio Deco.” Both are valid, very useful and base on the same principles; but […]

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Español General Scuba posts Scientific Research

Vacante de presión parcial y el modelo metabólico estático- II parte

Vacante de presión parcial del oxígeno y el modelo metabólico estático- II parte

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Español General Scuba posts Scientific Research

El metabolismo es estúpido: un nuevo modelo sobre la formación de burbuja.

05 Feb 2020 | Michael Menduno Traducción: Carlos Lander El artículo esta dividido en dos partes, sin embargo, el original no. La existencia y cantidad de burbujas a nivel vascular esta asociada al síndrome de descompresión o embolia gaseosa (EG). Se teoriza que durante la inmersión, las burbujas se desarrollan a partir de pequeños núcleos […]

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Scientific Research SCUBA Diving

MK29 rebreather

Recently I spoke with John Clarke, on our conversation he mentioned that the NAVY is working on a CCR that could be used with umbilical as a backup; so if you still pondering about it, below are public-videos explaining the concept

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Decompression Theory General Scuba posts Scientific Research

Inflammatory responses: Compartmental versus Ratio Deco.

Understanding the conclusion of a comparative evaluation of two decompression procedures for technical diving using inflammatory responses: Compartmental versus Ratio Deco.