Whois & Analysis for aqualung.com

Aqua-Lung was the original English name of the first open-circuit, self-contained underwater breathing apparatus (or "SCUBA") to reach worldwide popularity and commercial success.

This class of equipment is now commonly referred to as a diving regulator or demand valve.

The Aqua-Lung was invented in Paris during the winter of 1942–1943 by two Frenchmen: the engineer Émile Gagnan and Naval Lieutenant ("lieutenant de vaisseau") Jacques Cousteau.

It allowed Cousteau and Gagnan to film and explore more easily underwater.

A buoyancy compensator also called a buoyancy control device, BC, BCD, stabilizer, stabilisor, stab jacket, wing or ABLJ depending on design, is a piece of diving equipment containing an inflatable bladder which is worn by divers to establish neutral buoyancy underwater and positive buoyancy on the surface, when needed.

The buoyancy is controlled by adjusting the volume of air in the bladder.

The bladder is filled with gas from the diver's air tank via a low-pressure hose from the regulator first stage, directly from a small cylinder dedicated to this purpose, or from the diver's mouth through the oral inflation valve.

Diving equipment is equipment used by underwater divers to make diving activities possible, easier, safer and/or more comfortable.

This may be equipment primarily intended for this purpose, or equipment intended for other purposes which is found to be suitable for diving use.

A diving mask (also half mask, dive mask or scuba mask) is an item of diving equipment that allows underwater divers, including, scuba divers, free-divers, and snorkelers to see clearly underwater.

Surface supplied divers usually use a full face mask or diving helmet, but in some systems the half mask may be used.

When the human eye is in direct contact with water as opposed to air, its normal environment, light entering the eye is refracted by a different angle and the eye is unable to focus the light.

By providing an air space in front of the eyes, light enters normally and the eye is able to focus correctly.

Underwater diving is the practice of descending below the water's surface to conduct underwater activities.

In ambient pressure diving, the diver is exposed to the pressure of the surrounding water, and uses breathing apparatus for scuba diving or surface supplied diving, or when freediving, will breath-hold.

The saturation diving technique reduces the risk of decompression sickness after long duration deep dives.

Atmospheric diving suits may be used to isolate the diver from the effects of high ambient pressure.

Although not usually considered to be diving, crewed submersibles can extend depth range, while remotely controlled or robotic diving machines can reduce the risk to human divers.