Breathing hyperbaric air causes a syndrome of behavioral and subjective effects called nitrogen narcosis, which limits the work efficiency of divers and is ultimately life-threatening.
Why rebreather divers, even more so than open circuit divers, need to be in control and focused when they ascend.
It was 6:30 in the morning, and my dive buddy and I were hauling our gear back from the big zodiac speedboat after a thrilling midnight dive on the famous Elphinstone reef in the Red Sea near Marsa Alam, Egypt. While rinsing my gear, Ahmed—the local dive guide—started talking to me because I was diving a back plate, wing and long hose just like him, and he probably felt some kind of connection.
All three companies are affiliate members of the Sustainable Aviation Fuel Users Group (www.safug.org), which includes 23 leading airlines responsible for approximately 25 percent of annual aviation fuel use.
There is a recently developed term making its way into common use amongst the wider dive community, and that term is, citizen scientist. The science community is waking up to the fact that the common man and woman are valuable resources for acquiring many missing pieces in the jigsaw puzzle that is marine research, particularly for migratory species
Forty-two miles off the Egyptian coast, the Brothers Islands rise up from the floor of the Red Sea 800 metres below, forming two small, flat tabletops surrounded by steeply sloping fringing reefs.
In spite of Egypt’s current turmoil, I feel this exceptional country is still a place of interest and worth while including in anyone’s holiday itinerary. I recall enjoying the opportunity to tour many of the countries monuments, museums and being able to touch one of the huge pyramids that have surpassed the adversity of historical challenges.
The juvenile salt-water crocodile was near to death when the small boy found it stranded in a swamp far from the sea. Although greatly afraid, the boy decided to try and save the crocodile and eventually managed to get it back to the sea where it quickly recovered.
The two became best friends and went on to travel the world together, with the boy riding on the back of the crocodile as it swam across the seas.
Weird creatures from inner space.
The founder of Innerspace Explorers (ISE), Achim Schloffel, talks to X-RAY MAG about diving across the English Channel, explorations and running a dive training agency.
Alex Attwood has banned diving at the site of the discovery near the Foyle Bridge. He said it was important that the wreck was not disturbed until it was positively identified. "The wreck is in quite low water, it is quite accessible," Mr Attwood told the BBC.
BBC Northern Ireland Environment Correspondent Mike McKimm said that was unlikely to be a full-sized submarine.
"A German U-boat, for example, would sit almost 10m high and would have been visible, even at high tide in the Foyle, which has an average depth of just over 5m."
Chronological age and physiological age can differ markedly, and each individual ticks to his own genetic clock.
