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Diving

All articles tagged with #diving

Pigs in diving suits reveal carbon tetrafluoride could curb the bends
science11 days ago

Pigs in diving suits reveal carbon tetrafluoride could curb the bends

Duke researchers tested carbon tetrafluoride (CF4) as part of a breathing-gas mix in 40 pigs under simulated deep dives in a hyperbaric tank. The pigs switched to CF4 for the last 10 minutes of the dive had fewer decompression sickness signs and no deaths, while the control group breathing heliox faced severe symptoms and high mortality. CF4 is less soluble than helium, slowing inert-gas uptake and bubble formation, suggesting a potential safer gas mix for deep dives. However, the authors caution that translating this to humans is not immediate due to cost and safety considerations, and likely limits its use to commercial or military diving. The study was published in Proceedings of the National Academy of Sciences (PNAS).

via Live Science|
#carbon-tetrafluoride#decompression-sickness#diving
Diver uncovers 162-year-old Guinness in shipwreck, possibly drinkable
world15 days ago

Diver uncovers 162-year-old Guinness in shipwreck, possibly drinkable

Two divers recovered a 162-year-old bottle of Guinness Extra Stout London from the Mindoro shipwreck off the English Channel (sank 1864). Samples were sent to KU Leuven for study, with researchers noting a potential to recreate the beer if DNA recovery and cork integrity allow. Guinness Archive is coordinating with the divers, and the explorers believe more bottles may remain in the wreck.

via New York Post|
#archaeology#beer#diving
Diver’s Air Cut Off During Lobster Mini Season Triggers Attempted Murder Charge
crime19 days ago

Diver’s Air Cut Off During Lobster Mini Season Triggers Attempted Murder Charge

Michael Simpson, 51, of Miami Beach, is charged with attempted second-degree murder after turning off a diver’s air supply during lobster mini season about a half-mile east of Fisher Island. The incident began as a dispute over a diving spot; the 18-year-old diver, Hunter Cofer, was underwater when Simpson allegedly cut the air, prompting rescue by the boat owner. Cofer was brought to the surface and appeared disoriented but unharmed. Simpson fled but later surrendered to authorities; his bond is $10,000. His attorney denies the accusation, claiming Simpson never touched the tank, and says he will plead not guilty. Cofer is studying to become a paramedic and has not returned to the water since the incident.

via WPLG Local 10|
#attempted-murder#crime#diving
Arctic belugas dive deep on one breath, powered by muscle oxygen
science1 month ago

Arctic belugas dive deep on one breath, powered by muscle oxygen

Beluga whales routinely descend to about 700 meters and stay submerged for 20–25 minutes on a single breath, thanks to lungs that collapse under pressure and gas exchange halting early so they run on an oxygen-rich muscle reservoir fortified by high myoglobin. This physiology, along with thick blubber insulation and heat-conserving circulation, lets them hunt deep beneath ice in near darkness. As Arctic ice retreats, changing habitat and increased predation add new pressures to these deep-diving specialists.

via Space Daily|
#arctic#beluga#diving
Laos cave rescue makes progress as first survivor exits and teams push to save five
world2 months ago

Laos cave rescue makes progress as first survivor exits and teams push to save five

Rescuers in central Laos’s flooded cave have pulled one survivor from the chamber, while four others remain inside awaiting assessment before evacuation; two additional men are still missing. An international divers’ team is teaching the trapped villagers to use diving gear and guiding them through narrow, ice-cold passages, as workers pump water and coordinate a lengthy, challenging ascent to the surface over potentially hours-long treks.

via CNN|
#cave-rescue#diving#flooding
Remains of four Italian divers repatriated after Maldives cave tragedy
world3 months ago

Remains of four Italian divers repatriated after Maldives cave tragedy

The remains of four Italian divers who died during a deep cave dive in the Maldives were repatriated to Italy after a challenging recovery in Vaavu Atoll; five divers vanished on May 14, with the instructor's body recovered earlier. A Maldivian diver died during the operation, and three Finnish expert cave divers located the four bodies in the innermost chamber at about 60 meters depth (200 feet), far beyond the typical recreational limit of 30 meters. Investigations were opened in the Maldives into the incident and the on-duty death, with Italy potentially receiving autopsy findings if performed. Victims identified as Monica Montefalcone, Giorgia Sommacal, Federico Gualtieri, Muriel Oddenino, and Gianluca Benedetti.

via CBS News|
#cave-diving#diving#italy
Maldives cave dive tragedy: Italian divers may have been trapped inside
europe3 months ago

Maldives cave dive tragedy: Italian divers may have been trapped inside

Five Italian divers who died while exploring a 50-metre-deep underwater cave near Alimatha in the Maldives may have become lost in a three-chamber cave system, with a sandbank concealing the route back; rescuers say there was little chance of returning due to limited air and depth, four bodies were later recovered by Finnish divers assisting Dan Europe, and a Maldivian rescuer also died during the operation. Italy offered condolences to the Maldives as the investigation continues.

via Euronews.com|
#cave-diving#diving#europe
Maldives cave dive tragedy: five Italians likely followed a wrong exit
world3 months ago

Maldives cave dive tragedy: five Italians likely followed a wrong exit

Five Italian divers died during a Maldives underwater cave dive, with the recovery firm suggesting they may have taken a wrong corridor that led to a dead end, leaving them with little air at depth. The bodies were found in a sandbank area between two chimneys in a cave about 165 feet underwater. Investigators are examining how the divers descended to 60 meters when tourists are limited to 30 meters. A Maldivian diver also died while searching, underscoring the perils of cave diving and the ongoing investigation into safety and access at the site.

via CBS News|
#cave-diving#diving#italy
Two Italian divers recovered from Maldives cave as rescue continues
world3 months ago

Two Italian divers recovered from Maldives cave as rescue continues

Finnish divers recovered two bodies from the third chamber of a deep Maldivian underwater cave after a two-hour operation; five divers died in the Vaavu Atoll incident, with two bodies still inside the cave. One victim was Gianluca Benedetti. The remaining bodies are to be recovered as investigators seek the cause. The dive, conducted by a Genoa University team reportedly in a personal capacity, drew scrutiny over authorizations and prompted ongoing discussions about safety and procedures.

via BBC|
#cave-diving#diving#fatalities
New Twist in Maldives Cave Tragedy: Bodies Found Deep Inside
world3 months ago

New Twist in Maldives Cave Tragedy: Bodies Found Deep Inside

Five Italian divers died in an unauthorized deep dive into the Thinwana Kandu cave system off Maldives' Vaavu Atoll; four bodies were recovered deep inside the cave’s third chamber, and Gianluca Benedetti’s body was found near the Shark Cave entrance at about 197 feet, prompting scrutiny of safety gear and whether the dive was approved by the tour operator.

via The Daily Beast|
#cave-diving#diving#italy