It is important to note that diving at extreme depths carries significant risks and requires specialized training , equipment , and support systems . Deep - sea exploration is usually conducted by experienced professionals with extensive knowledge of the underwater environment and the ability to manage the physiological effects of extreme pressure .
For recreational divers , it is generally recommended to stay within depth limits that minimize the risk of DCS and nitrogen narcosis . These limits vary based on the diver's training and certification level . The most common recreational diving limit is 40 meters (130 feet) for certified divers . Technical divers , who undergo additional training and use specialized equipment , may be able to dive deeper , but they must adhere to more stringent safety protocols.
Now here are some explanations for DCS and nitrogen narcosis .
DECOMPRESSION SICKNESS ( DCS ) :
When a diver breathes compressed air underwater, the body absorbs nitrogen from the air . As the diver ascends, the pressure decreases , and the excess nitrogen forms bubbles in the tissues and bloodstream . If a diver ascends too quickly, these bubbles can cause symptoms ranging from mild joint pain and rashes to more severe neurological and cardiovascular issues . To mitigate the risk of DCS , divers must follow dive tables or computer algorithms that specify decompression stops during ascent .
NITROGEN NARCOSIS :
Nitrogen narcosis, also known as "raptures of the deep" or "the bends," is a reversible alteration of consciousness caused by the increased partial pressure of nitrogen at depth . It can affect divers at various depths but becomes more pronounced at greater depths . Symptoms may include euphoria , impaired judgment, confusion , and loss of motor skills . The effects of nitrogen narcosis can impair a diver's ability to make sound decisions and perform critical tasks underwater .
It is crucial for divers to receive proper training , understand their own limitations , and follow safe diving practices to ensure their well - being underwater .
With specialized equipment and training , humans can dive much deeper than recreational diving limits . Technical divers , who undergo extensive training and use specialized gear , have the ability to reach greater depths . Here are some examples of deep dives achieved by experienced technical divers :
SCUBA DIVING :
Technical divers using mixed gases , such as Trimix or Heliox , have reached depths of over 300 meters (984 feet) . These dives require meticulous planning , advanced gas management , and specialized equipment to manage the increased pressure and gas toxicity .
SATURATION DIVING :
Saturation divers work on offshore oil rigs and other commercial underwater structures . They live in a pressurized environment for extended periods , typically up to several weeks , allowing them to work at great depths for prolonged durations . Saturation divers have reached depths of over 500 meters (1,640 feet) using diving bells or saturation diving systems .
SUBMERSIBLES :
Manned submersibles or research submarines are used for deep-sea exploration. These vehicles are designed to withstand extreme pressures and can dive to tremendous depths. For instance, the Deepsea Challenger, piloted by James Cameron, reached the bottom of the Mariana Trench, the deepest part of the ocean, at approximately 10,908 meters (35,787 feet).
Let me share with you about those unluckiest divers in the ocean .
A submarines used for tourist visits to the titanic wreckage has gone missing in the Atlantic on June 19 , 2023 . Oceangate's sub called the Titan was carrying a group of five tourists and had an oxygen supply of about 96 hours .
An OceanGate spokesman has said "our entire focus is on the crew members in the submarine and their families , and are exploring and mobilizing all options to bring the crew back safely . "
Authorities conducted a search and rescue mission along with USA and Canadian coast guards to locate the missing submarine and its passengers . Authorities did not know the cause of the disappearance and feared the prospect of a rescue to be bleak since the wreck sits 12,000 ft deep .
The experience to be part of this deadly trap costs the modest amount of $250,000 PER PERSON. There were 5 people on board the submarine, including its creator, Stockton Rush. The objective of this journey is to descend to a depth of 3,800 meters to admire the rusty remains that were once part of the famous Titanic structure. There is no other submarine in the world that can reach that depth, and there is also no other OceanGate submarine (first red flag).
On Sunday, after 1 hour and 45 minutes of starting the journey, all communication was lost . They have not heard anything from them despite the rescue operation starting immediately after losing contact with Stockton Rush.
The submarine was controlled with a Logitech gaming controller, like a PlayStation controller (second red flag).
There was no regulatory authority to verify and approve the safety of the submarine, and when someone questioned this issue, they were fired.
Who the hell pays $250,000 to see through the submarine's screen a ship that sank in 1912? For God's sake, watch a documentary on YouTube and you'll see exactly the same thing.
Why didn't the submarine have GPS? In the world where AirTag costs 35 euros, couldn't a similar technology have been integrated in the submersible?
Only a few millionaires pay so much to die in this way .
James Cameron, the director of the 1997 Hollywood film Titanic, told the BBC that the crew that built the submersible that imploded with the loss of five lives "cut corners."
The Titan sub's parent company, OceanGate, "didn't get certified because they knew they wouldn't pass," according to the statement.
I wouldn't have boarded that submarine, he declared.
33 submersible dives to the Titanic wreck have been completed by Cameron.
In 2012 Cameron used a different technology for the Deepsea Challenger submersible expedition in the Pacific, which took him down to 10,912m (35,800ft), the deepest known oceanic trench.
The Titanic wreck is 3,810m (12,500ft) down.
When Cameron learned that the submarine had lost both its navigation and communication at the same time he immediately suspected a disaster.
"I felt in my bones what had happened. For the sub's electronics to fail and its communication system to fail, and its tracking transponder to fail simultaneously - sub's gone."
In losing Titan, St John's mulls a familiar tragedy
He said that on Monday, when he heard the sub had gone missing, "I immediately got on the phone to some of my contacts in the deep submersible community.
"Within about an hour I had the following facts. They were on descent. They were at 3,500 metres (11,483ft), heading for the bottom at 3,800 metres.
"Their comms were lost, and navigation was lost - and I said instantly, you can't lose comms and navigation together without an extreme catastrophic event or high, highly energetic catastrophic event. And the first thing that popped to mind was an implosion.
All passengers on the Titan are believed to have died instantly in a catastrophic implosion deep underwater .
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