Diver communications are the methods used by divers to communicate with each other or with surface members of the dive team. In professional diving, communication is usually between a single working diver and the diving supervisor at the surface control point. This is considered important both for managing the diving work, and as a safety measure for monitoring the condition of the diver. The traditional method of communication was by line signals, but this has been superseded by voice communication, and line signals are now used in emergencies when voice communications have failed. Surface supplied divers often carry a closed circuit video camera on the helmet which allows the surface team to see what the diver is doing and to be involved in inspection tasks. This can also be used to transmit hand signals to the surface if voice communications fails. Underwater slates may be used to write text messages which can be shown to other divers, and there are some dive computers which allow a limited number of pre-programmed text messages to be sent through-water to other divers or surface personnel with compatible equipment.
Scuba diving is a mode of underwater diving where the diver uses a self-contained underwater breathing apparatus (scuba), which is completely independent of surface supply, to breathe underwater. Scuba divers carry their own source of breathing gas, usually compressed air, allowing them greater independence and freedom of movement than surface-supplied divers, and longer underwater endurance than breath-hold divers. Although the use of compressed air is common, a new mixture called enriched air (Nitrox) has been gaining popularity due to its benefit of reduced nitrogen intake during repetitive dives. 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 regulator. They may include additional cylinders for range extension, 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, so 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 open circuit 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.
The men's 3 metre springboard, also reported as 3-metre springboard diving, was one of four diving events on the Diving at the 1960 Summer Olympics programme.
The men's 10 metre platform, also reported as 10-metre high diving, was one of four diving events on the Diving at the 1960 Summer Olympics programme.
The women's 3 metre springboard, also reported as 3-metre springboard diving, was one of four diving events on the Diving at the 1960 Summer Olympics programme.
Men's 10 metre platform competition at the Beijing 2008 Summer Olympics was held from August 22 to August 23, at the Beijing National Aquatics Center. It was an individual diving competition, with dives performed from an inflexible platform, unlike the springboard used for three metre diving, ten metres above the surface of the water.
The women's 3 metre springboard diving competition at the 2012 Olympic Games in London took place from 3 to 5 August at the Aquatics Centre within the Olympic Park.
England competed at the 2014 Commonwealth Games in Glasgow, Scotland between 23 July and 3 August 2014. Commonwealth Games England named a team of 416 athletes consisting of 216 men and 200 women across the 18 disciplines.
The men's 1 metre springboard was part of the Diving at the 2014 Commonwealth Games program. The competition was held on 30 July 2014 at Royal Commonwealth Pool in Edinburgh.
The women's 10 metre platform was part of the Diving at the 2014 Commonwealth Games program. The competition was held on 31 July 2014 at Royal Commonwealth Pool in Edinburgh.
The Men's 10 metre platform diving event is one of 261 events in 17 disciplines at the 2014 Commonwealth Games. It was held on August 2, 2014. Tom Daley of England won the Gold medal, Ooi Tze Liang of Malaysia won the Silver medal and Vincent Riendeau of Canada won the Bronze madal.
The women's 1 metre springboard was part of the Diving at the 2014 Commonwealth Games program. The competition was held on 1 August 2014 at Royal Commonwealth Pool in Edinburgh.
The women's 3 metre springboard was part of the Diving at the 2014 Commonwealth Games program. The competition was held on 2 August 2014 at Royal Commonwealth Pool in Edinburgh.
The men's 10 metre platform competition of the diving events at the 2015 Pan American Games was held on July 12 at the CIBC Pan Am/Parapan Am Aquatics Centre and Field House in Toronto, Canada. The winner of the competition will qualify his country a quota place for the 2016 Summer Olympics in Rio de Janeiro, Brazil. If the host nation of the Olympics wins the event, the runner up will qualify instead.
The men's 1 metre springboard was part of the Diving at the 2018 Commonwealth Games program. The competition was held on 11 April 2018 at Gold Coast Aquatic Centre in Gold Coast.
The women's 10 metre platform was part of the Diving at the 2018 Commonwealth Games program. The competition was held on 12 April 2018 at Gold Coast Aquatic Centre in Gold Coast.
The men's 3 metre springboard was part of the Diving at the 2018 Commonwealth Games program. The competition was held on 12 April 2018 at Gold Coast Aquatic Centre in Gold Coast.
The women's 1 metre springboard was part of the Diving at the 2018 Commonwealth Games program. The competition was held on 13 April 2018 at Gold Coast Aquatic Centre in Gold Coast.
The women's 3 metre springboard was part of the Diving at the 2018 Commonwealth Games program. The competition was held on 14 April 2018 at Gold Coast Aquatic Centre in Gold Coast.
The men's 10 metre platform was part of the Diving at the 2018 Commonwealth Games program. The competition was held on 14 April 2018 at Gold Coast Aquatic Centre in Gold Coast.
