aerodynamic measurements
71Bird migration — A flock of Barnacle Geese during autumn migration …
72Oldsmobile 88 — Oldsmobile Eighty Eight Manufacturer General Motors Production 1949–1999 Class Full siz …
73Occupational hygiene — Occupational (or industrial in the U.S.) hygiene is generally defined as the art and science dedicated to the anticipation, recognition, evaluation, communication and control of environmental stressors in, or arising from, the workplace that may… …
74Little Joe — Otheruses:for|the Apollo test program|Little Joe IIInfobox rocket caption =Pre launch of the Little Joe launch vehicle. name = Little Joe function = Unmanned test capsule manufacturer = North American Aviation country origin = United States… …
75Planetary boundary layer — Depiction of where the planetary boundary layer lies on a sunny day The planetary boundary layer (PBL), also known as the atmospheric boundary layer (ABL), is the lowest part of the atmosphere and its behavior is directly influenced by its… …
76Rolling resistance — Figure 1  Hard wheel rolling on and deforming a soft surface, resulting in the reaction force from the surface having a component that opposes the motion. Rolling resistance, sometimes called rolling friction or rolling drag, is the… …
77Ballistic coefficient — The ballistic coefficient (BC) of a body is a measure of its ability to overcome air resistance in flight. It is inversely proportional to the deceleration mdash;a high number indicates a low deceleration. BC is a function of mass, diameter, and… …
78Jeep Cherokee (XJ) — See also Jeep Cherokee for other models using this name Infobox Automobile name=Jeep Cherokee (XJ) manufacturer=American Motors (AMC) Chrysler Corporation DaimlerChrysler body style=2 door SUV 4 door SUV successor=Jeep Liberty production=1984… …
79STS-133 — Mission insignia Mission statistics Mission name STS 133 Space shuttle Discovery …
80wind tunnel — /wind/, Aeron. a tubular chamber or structure in which a steady current of air can be maintained at a controlled velocity, equipped with devices for measuring and recording forces and moments on scale models of complete aircraft or of their parts …
