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10 facts about our amazing oceans › Science Features (ABC Science)

10 facts about our amazing oceans › Science Features (ABC Science) | All about water, the oceans, environmental issues | Scoop.it
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Rebreather Fatalities | DIVER magazine

Rebreather Fatalities | DIVER magazine | All about water, the oceans, environmental issues | Scoop.it

When diving open circuit you are virtually always okay if you have gas to breathe.  This stops being true when you move into technical diving where breathing your decompression gas too deep can kill you from an oxygen (O2) seizure and breathing your bottom gas for a deep trimix dive too shallow can kill you from hypoxia.  When diving a rebreather the gas you are breathing can kill you if the partial pressure of oxygen in the gas is too high or too low, or if the partial pressure of carbon dioxide is too high.  Experienced open circuit divers intuitively believe that as long as they have gas to breathe they are okay and as a result often forget to monitor the partial pressure of oxygen (pO2) in the breathing loop on a rebreather.  This is frequently a factor in rebreather accidents.

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Project to replace diving tanks with "solid air" wins prize - SCUBA News

Project to replace diving tanks with "solid air" wins prize - SCUBA News | All about water, the oceans, environmental issues | Scoop.it
Students win $1000 to advance their process by which oxygen and nitrogen can be harnessed in solid form and used by SCUBA divers.
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SCUBA SCOOP/latest dive stories: Nitrox Scuba Diving: Extending Bottom Time With Scuba

SCUBA SCOOP/latest dive stories: Nitrox Scuba Diving: Extending Bottom Time With Scuba | All about water, the oceans, environmental issues | Scoop.it

You jump on a plane with your scuba diving buddies and head out of the country. Though hopping onto a rocking boat isn't what you came here for, the boat will get you to the dive spot. Finally, you make the plunge into the deep blue and you start to think "this is what makes it all worth it". Aggressively you swim from the top of the coral reef to the bottom and back to the top just trying to see in every nick and cranny. Then all of a sudden you realize your dive is done with plenty of air in your tank!

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