buoyancy
71Diving cylinder — Diving cylinders to be filled at a diving air compressor station …
72Air parcel — An air parcel is an imaginary volume of air used by meteorologists to conceptualize the thermodynamic fluid motions of the atmosphere for use in weather forecasting. For mathematical simplicity, an air parcel is usually considered a rigid cube… …
73Diving weighting system — Weight belt redirects here. For the belt used to support the torso during strength training, see weight lifting belt. A bag weight belt and a traditional weight belt Divers wear weighting systems, weight belts or weights, generally made of lead,… …
74Weightlessness — Zero gravity redirects here. For other uses, see Zero gravity (disambiguation). Zero G redirects here. For other uses, see Zero G (disambiguation). 0G redirects here. For other uses, see 0G (disambiguation). Weightlessness (or zero g) is the… …
75Diving physics — explains the effects that divers and their equipment are subject to underwater. Contents 1 Laws of physics for diving 2 Physical effects of water for divers 3 Physical phenomena of interest to divers …
76Backplate and wing — A backplate and wing (often abbreviated as BP W or BP/W), is a type of buoyancy compensation device (BCD) worn by scuba divers. Unlike most other BCDs, the backplate and wing is a modular system, in that it consists of separable components.The… …
77Diver rescue — Beaching a casualty while providing artificial respiration Diver rescue, following an accident, is the process of avoiding or limiting further exposure to diving hazards and bringing a SCUBA diver to safety.[1] A safe place is often a place where …
78Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… …
79Convection — This figure shows a calculation for thermal convection in the Earth s mantle. Colors closer to red are hot areas and colors closer to blue are cold areas. A hot, less dense lower boundary layer sends plumes of hot material upwards, and likewise,… …
80Diving regulator — and Octopus Other names Demand valve Uses Reduces pressurized breathing gas to ambient pressure and delivers it to the diver Inventor Manuel Théodore Guillaumet (1838), Benoît Rouquayrol (1860) …
