Whois & Analysis for deeperblue.com

Freediving, free-diving, free diving, breath-hold diving, or skin diving is a form of underwater diving that relies on divers' ability to hold their breath until resurfacing rather than on the use of a breathing apparatus such as scuba gear.

Scuba diving is a mode of underwater diving in which the scuba diver uses a self-contained underwater breathing apparatus (scuba) which is completely independent of surface supply, to breathe underwater.

Unlike other modes of diving, which rely either on breath-hold or on breathing supplied under pressure from the surface, scuba divers carry their own source of breathing gas, usually compressed air, allowing them greater freedom of movement than with an air line or diver's umbilical and longer underwater endurance than breath-hold.

Open circuit scuba systems discharge the breathing gas into the environment as it is exhaled, and consist of one or more diving cylinders containing breathing gas at high pressure which is supplied to the diver through a diving regulator.

They may include additional cylinders for decompression gas or emergency breathing gas.

Closed-circuit or semi-closed circuit rebreather scuba systems allow recycling of exhaled gases.

The volume of gas used is reduced compared to that of open circuit; therefore, a smaller cylinder or cylinders, may be used for an equivalent dive duration.

Rebreathers extend the time spent underwater compared to open circuit for the same gas consumption, they produce fewer bubbles and less noise than scuba which makes them attractive to covert military divers to avoid detection, scientific divers to avoid disturbing marine animals, and media divers to avoid bubble interference.

Travel is the movement of people between relatively distant geographical locations, and can involve travel by foot, bicycle, automobile, train, boat, airplane, or other means, with or without luggage, and can be one way or round trip.

Travel can also include relatively short stays between successive movements.

The ampere (SI unit symbol: A, dimension symbol: I), often shortened to "amp", is a unit of electric current.

In the International System of Units (SI) the ampere is one of the seven SI base units.

It is named after André-Marie Ampère (1775–1836), French mathematician and physicist, considered the father of electrodynamics.

An online community is a virtual community whose members interact with each other primarily via the Internet.

For many, online communities may feel like home, consisting of a "family of invisible friends".

Those who wish to be a part of an online community usually have to become a member via a specific site and necessarily need an internet connection.

An online community can act as an information system where members can post, comment on discussions, give advice or collaborate.

Commonly, people communicate through social networking sites, chat rooms, forums, e-mail lists and discussion boards.

People may also join online communities through video games, blogs and virtual worlds.