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In fresh water the coldest water is in contact with the ice, at 0 °C (32 °F), and the warmest may be 4 °C (39 °F), some distance below the ice, which is the temperature at which fresh water reaches its highest density. In sea water the temperature can be a little lower, around −2 °C (28 °F), depending on salinity. [4]
Just as an emergency backup source of breathing gas is required, a backup water heater is also an essential precaution whenever dive conditions warrant a hot water suit. If the heater fails and a backup unit cannot be immediately brought online, a diver in the coldest conditions can succumb to hypothermia within minutes if they cannot get back ...
Risk factors are proximity or entry to water, and low light. Launching ranges are 4m forwards out of water and 2m above water surface. Running speed is up to 11 km/h. [49] Found worldwide in tropical seas and fresh water. Consult local information on risk. Stay out of waters and surroundings known to be inhabited by crocodiles. Titan triggerfish
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Boarding the boat after a dive may require equipment to be removed in the water, and this presents another set of hazards, and the associated risks of injury and damage to or loss of equipment, some of which may be avoided if the diver does not have to take off equipment in the water, and heavy equipment does not have to be lifted over the side ...
Missouri executed death row inmate Christopher Leroy Collings on Tuesday, 17 years after he confessed to raping and killing his friend's 9-year-old stepdaughter.. Collings, 49, was executed by ...
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