fall of pressure
41renal system — ▪ anatomy Introduction in humans (human body), organ system that includes the kidneys, where urine is produced, and the ureters, bladder, and urethra for the passage, storage, and voiding of urine. In many respects the human excretory, or… …
42Bernoulli's principle — This article is about Bernoulli s principle and Bernoulli s equation in fluid dynamics. For Bernoulli s Theorem (probability), see Law of large numbers. For an unrelated topic in ordinary differential equations, see Bernoulli differential… …
43Reflex — A reaction that is involuntary. The corneal reflex is the blink that occurs with irritation of the eye. The nasal reflex is a sneeze. * * * 1. An involuntary reaction in response to a stimulus applied to the periphery and transmitted to the… …
44Jeans instability — The Jeans instability causes the collapse of interstellar gas clouds and subsequent star formation. It occurs when the internal gas pressure is not strong enough to prevent gravitational collapse of a region filled with matter. For stability, the …
45Components of jet engines — Diagram of a typical gas turbine jet engine. Air is compressed by the fan blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which… …
46Czechoslovak coup d'état of 1948 — The Czechoslovak coup d état of 1948 (often simply the Czech coup) (Czech: Únor 1948, Slovak: Február 1948, both meaning February 1948 ) – in Communist historiography known as Victorious February (Czech: Vítězný únor, Slovak: Víťazný február) –… …
47Elk — This article is about the North American and East Asian animals, also known as wapiti. For the animal Alces alces, called the elk in Europe, see moose. For other uses, see Elk (disambiguation). Wapiti redirects here; for other uses, see Wapiti… …
48deepening — A further decrease in the central pressure of a pressure system. A depression is deepening if there is a further fall of pressure at its center. The term is normally used with low pressure systems, although it could be used with a high pressure… …
49William Thomson, 1st Baron Kelvin — Infobox Scientist box width = 300px name = Lord Kelvin image width = 300px caption = William Thomson, 1st Baron Kelvin (1824 1907) birth date = birth date|1824|6|26|df=y birth place = Belfast, Co. Antrim, Northern Ireland death date = death date… …
50Tube — A long hollow cylinder. There are many tube like structures in the human body, such as the auditory tube (Eustachian tube) in the ear. * * * 1. A hollow cylindrical structure or canal. 2. A hollow cylinder or pipe. SYN: tuba [TA]. [L. tubus]… …
