velocity doppler limit
111Pulse repetition frequency — (PRF) is the number of pulses transmitted per second by a radar. The reciprocal of this is called the Pulse Repetition Time (PRT), Pulse Repetition Interval (PRI), or Inter Pulse Period (IPP), which is the elapsed time from the beginning of one… …
112Cosmic microwave background radiation — CMB and Cosmic background radiation redirect here. For other uses see CMB (disambiguation) and Cosmic background (disambiguation). Physical cosmology …
113Moon — This article is about Earth s Moon. For moons in general, see Natural satellite. For other uses, see Moon (disambiguation) …
114Timeline of luminiferous aether — The timeline of luminiferous aether begins in the late 19th century with the concept of luminiferous aether ( light bearing aether ), or ether, as a medium for electromagnetic propagation. The aether was assumed to exist for much of the 19th… …
115Common carotid artery — Artery: Common carotid artery Schematic of the proximal aorta and its branches …
116Wind profiler — at various elevations above the ground. Readings are made at each kilometer above sea level, up to the extent of the troposphere (up to the limit of the earths atmosphere, or 17 kilometers above mean sea level). Above this level there is… …
117Radio acoustic sounding system — A radio acoustic sounding system (RASS) is a system for measuring the atmospheric lapse rate using backscattering of radio waves from an acoustic wave front to measure the speed of sound at various heights above the ground. This is possible… …
118Wolf–Rayet star — Hubble Space Telescope image of nebula M1 67 around Wolf–Rayet star WR 124 Wolf–Rayet stars (often referred to as WR stars) are evolved, massive stars (over 20 solar masses initially), which are losing mass rapidly by means of a very strong… …
119COROT-3b — Extrasolar planet List of extrasolar planets Size comparison of COROT 3b with Jupiter. Parent star Star …
120AMX-30 — French AMX 30B2 sporting a 105 rifled tank gun Type Main battle tank Place of origin …
