IN THE 1900s UMBERTO PELIZZARI was a young diver from Busto Arsizio, Italy, who was making headlines by breaking world records in constant weight and variable weight freediving. Needing an edge against his archrival, Francisco “Pipin” Ferreras, he sought advice on fins from a friend who was knowledgeable about innovative freediving equipment: Valerio Grassi, founder of Omersub.
To pee or not to pee? That is not the question for technical divers, instructors, or others who spend long hours in the water. Proper hydration and comfort ensure that urine will flow. The question is, What’s the best way to handle it?
The decision to sustainably harvest marine life can spark vigorous discussions among divers. Regardless of your views, there are benefits to understanding the equipment, procedures, and dangers associated with spearfishing.
Many divers seek interactions with sharks, but others actively seek to avoid them. As long as sharks are in the water, people will look for ways to reduce the lethality of a shark bite or decrease encounters altogether.
Oxygen is the standard of care for first aid in dive injuries. You do not need to determine if the injured person is experiencing decompression sickness (DCS), arterial gas embolism […]
Sorb, or scrubber, plays a critical role in rebreather diving, as it is responsible for removing carbon dioxide (CO2) from the diver’s breathing gas. Small granules or pellets absorb exhaled […]
Divers generally use lift bags to raise submerged objects to the surface. The lift bag is filled with gas until the object exhibits neutral buoyancy so divers can bring it to the surface with minimal exertion.
Whether for recreation, research, or commercial work, diving puts humans in a fundamentally hazardous environment. Visibility, pressure effects, and sound distortion limit communication between divers and surface teams, making real-time […]
Composite, fiber-wound cylinders are making their way back into diving in rebreathers and other advanced scuba gear. The weight and lifespan benefits of these cylinders are attempting to challenge their previous cost barrier.
