valve breathing
111Spacesuits in fiction — Science fiction authors have designed imaginary spacesuits for their characters almost since the beginning of fiction set in space.Often, comic book creators seem unaware of the effects of internal pressure which tends to inflate a spacesuit in… …
112Colin Morley — Prof Colin Morley updating his laboratory notebook 1980s Colin Morley, FRCP, FRCPCH, FRACP, is a British/Australian academic Neonatologist. He was the Professor Director of Neonatal Medicine at The Royal Women’s Hospital and The Royal Children’s… …
113Rotary engine — The rotary engine was an early type of internal combustion aircraft engine in which the crankshaft remains stationary and the entire cylinder block revolves around it. The design was used mostly in the years shortly before and during World War I… …
114Lungfish — For the band, see Lungfish (band). Lungfishes Temporal range: Early Devonian–Recent …
115Dry suit — A dry suit or drysuit provides thermal insulation or passive thermal protection to the wearer while immersed in water,[1][2][3][4] and is worn by divers, boaters, water sports enthusiasts, and others who work or play in or near cold water. A dry… …
116BAP Pacocha (SS-48) — was a submarine of the Marina de Guerra Peruana (Peruvian Navy) named for the 1877 Battle of Pacocha, in which the Peruvian ironclad Huascar clashed with the Royal Navy. Formerly USS|Atule|SS 403, a Balao class submarine with a GUPPY IA upgrade,… …
117Buddy check — The buddy check is a procedure carried out by SCUBA divers using the buddy system where each diver checks that the other s diving equipment is configured and functioning correctly just before the start of the dive. [Sport Diving, p118,123,… …
118Cabin pressurization — is the active pumping of compressed air into an aircraft cabin when flying at altitude to maintain a safe and comfortable environment for crew and passengers in the low outside atmospheric pressure.Pressurization is essential over 3,000 m (10,000 …
119Atrial myxoma — An atrial myxoma is a non cancerous tumor in the upper left or right side of the heart. It grows on the wall (atrial septum) that separates the two sides of the heart.CausesA myxoma is a primary heart (cardiac) tumor. This means that the tumor… …
120Pressure regulator — A pressure regulator is a valve that automatically cuts off the flow of a liquid or gas at a certain pressure. Regulators are used to allow high pressure fluid supply lines or tanks to be reduced to safe and/or usable pressures for various… …
