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Neutral buoyancy occurs when an object's average density is equal to the density of the fluid in which it is immersed, resulting in the buoyant force balancing the force of gravity that would otherwise cause the object to sink (if the body's density is greater than the density of the fluid in which it is immersed) or rise (if it is less). An ...
If a bullet has neutral buoyancy when it is at rest in a perfect fluid and then it is launched with a relativistic speed, observers at rest within the fluid would conclude that the bullet should sink, since its density will increase due to the length contraction effect. On the other hand, in the bullet's proper frame it is the moving fluid that ...
In the late 1980s NASA began to consider replacing its previous neutral-buoyancy training facility, the Weightless Environment Training Facility (WETF). The WETF, located at Johnson Space Center, had been successfully used to train astronauts for numerous missions, but its pool was too small to hold useful mock-ups of space station components of the sorts intended for the mooted Space Station ...
In other words, the "buoyancy force" on a submerged body is directed in the opposite direction to gravity and is equal in magnitude to B = ρ f V g . {\displaystyle B=\rho _{f}Vg.\,} The net force on the object must be zero if it is to be a situation of fluid statics such that Archimedes principle is applicable, and is thus the sum of the ...
Scuba divers with good trim and neutral buoyancy. The trim of a diver is the orientation of the body in the water, determined by posture and the distribution of weight and volume along the body and equipment, as well as by any other forces acting on the diver. Both static trim and its stability affect the convenience and safety of the diver ...
When body weight (and thus buoyancy) was artificially altered, horizontally swimming cormorants reduced the angle of body tilt when additional weight was added and increased the tilt angle when weight was removed. When enough weight was added to make the birds negatively buoyant, the birds angled their bodies upwards so that the thrust produced ...
The Neutral Buoyancy Research Facility, or NBRF, was completed in 1992. Current projects include the MX-2 suit, a simplified neutral buoyancy spacesuit for use in EVA research; Power Glove, a prototype motorized spacesuit glove which will help reduce astronaut hand fatigue; and TSUNAMI, an apparatus to test human neuromuscular adaptation in ...
Pages in category "Neutral buoyancy pools" The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes. ...