Actually it is -273.15 C, and the triple point of water is at a temperature of 273.16 K or 0.01 C. At standard atmospheric pressure water boils at 100 C and freezes at 0 C, which decides the size of the degree.
Anesthesia billing limitation. ï· An independent trained observer whose sole duty is to monitor the patientâs level of consciousness and physiological status must be present throughout the diagnostic or therapeutic service. The anesthesia note must identify this person and his credentials (e.g., RN, NPP, PA).
For the ground-based observer corps of World War II, see Royal Observer Corps. An air observer is a military aircrew member whose duties are predominantly reconnaissance. The term originated in the First World War in the British Royal Flying Corps, and was maintained by its successor, the Royal Air Force. An air observer's brevet was a single wing with an O at the root. The term is still used in some contexts now, such as police helicopter units. The first recorded RAF kill of the Second World War, on 20 September 1939, was by air observer Sergeant F Letchford, aboard a Fairey Battle, flown by Flying Officer LH Baker.