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- Neutral_Buoyancy_Laboratory abstract "The Neutral Buoyancy Laboratory (NBL) is an astronaut training facility maintained by and located at the Sonny Carter Training Facility near NASA's Johnson Space Center in Houston, Texas. The NBL consists of a large indoor pool of water, in which astronauts may perform simulated EVA tasks in preparation for upcoming missions. The NBL contains full-sized mock-ups of the International Space Station (ISS) modules and payloads, visiting vehicles such as the Japan Aerospace Exploration Agency (JAXA) HTV, the European Space Agency ATV, the SpaceX Dragon, and the Orbital Sciences Corporation Cygnus. Previously there was also a mockup of the Space Shuttle payload bay, but since Space Shuttle retirement it has been removed.The principle of neutral buoyancy is used to simulate the weightless environment of space. First the suited astronauts or equipment is lowered into the pool using an overhead crane. Once this is done the suited astronauts are weighted in the water by support divers so that they experience minimal buoyant force and minimal rotational moment about their center of mass. The suits worn in the NBL are down-rated from fully flight-rated EMU suits like those in use on the space shuttle and International Space Station.The NBL tank itself is 202 feet (62 m) in length, 102 feet (31 m) wide, and 40 feet 6 inches (12.34 m) deep, and contains 6.2 million gallons (23.5 million litres) of water. Divers breathe nitrox while working in the tank.One downside of using neutral buoyancy to simulate microgravity is the significant amount of drag presented by water. This makes it difficult to set an object in motion, and difficult to keep it in motion. It also makes it easier to keep the object stationary. This effect is the opposite of what is experienced in space, where it is easy to set an object in motion, but very difficult to keep it still. Generally, drag effects are minimized by doing tasks slowly in the water. Another downside of neutral buoyancy simulation is that astronauts are not weightless within their suits, meaning that as an astronaut tilts the suit they are forced to lean against whatever inside surface is facing down. This can be uncomfortable in certain orientations such as heads-down. Thus, precise suit sizing is critical.".
- Neutral_Buoyancy_Laboratory thumbnail NBL-logo.jpg?width=300.
- Neutral_Buoyancy_Laboratory wikiPageID "6266230".
- Neutral_Buoyancy_Laboratory wikiPageRevisionID "592632296".
- Neutral_Buoyancy_Laboratory hasPhotoCollection Neutral_Buoyancy_Laboratory.
- Neutral_Buoyancy_Laboratory subject Category:Human_spaceflight.
- Neutral_Buoyancy_Laboratory subject Category:Lyndon_B._Johnson_Space_Center.
- Neutral_Buoyancy_Laboratory subject Category:Neutral_buoyancy_facilities.
- Neutral_Buoyancy_Laboratory point "29.6071 -95.1439".
- Neutral_Buoyancy_Laboratory type Artifact100021939.
- Neutral_Buoyancy_Laboratory type Facility103315023.
- Neutral_Buoyancy_Laboratory type NeutralBuoyancyFacilities.
- Neutral_Buoyancy_Laboratory type Object100002684.
- Neutral_Buoyancy_Laboratory type PhysicalEntity100001930.
- Neutral_Buoyancy_Laboratory type Whole100003553.
- Neutral_Buoyancy_Laboratory type YagoGeoEntity.
- Neutral_Buoyancy_Laboratory type YagoPermanentlyLocatedEntity.
- Neutral_Buoyancy_Laboratory type SpatialThing.
- Neutral_Buoyancy_Laboratory comment "The Neutral Buoyancy Laboratory (NBL) is an astronaut training facility maintained by and located at the Sonny Carter Training Facility near NASA's Johnson Space Center in Houston, Texas. The NBL consists of a large indoor pool of water, in which astronauts may perform simulated EVA tasks in preparation for upcoming missions.".
- Neutral_Buoyancy_Laboratory label "Laboratoire de flottabilité neutre".
- Neutral_Buoyancy_Laboratory label "Neutral Buoyancy Laboratory".
- Neutral_Buoyancy_Laboratory label "Neutral Buoyancy Laboratory".
- Neutral_Buoyancy_Laboratory sameAs Laboratoire_de_flottabilité_neutre.
- Neutral_Buoyancy_Laboratory sameAs Neutral_Buoyancy_Laboratory.
- Neutral_Buoyancy_Laboratory sameAs m.0fzpdy.
- Neutral_Buoyancy_Laboratory sameAs Q3214454.
- Neutral_Buoyancy_Laboratory sameAs Q3214454.
- Neutral_Buoyancy_Laboratory sameAs Neutral_Buoyancy_Laboratory.
- Neutral_Buoyancy_Laboratory lat "29.6071".
- Neutral_Buoyancy_Laboratory long "-95.1439".
- Neutral_Buoyancy_Laboratory wasDerivedFrom Neutral_Buoyancy_Laboratory?oldid=592632296.
- Neutral_Buoyancy_Laboratory depiction NBL-logo.jpg.
- Neutral_Buoyancy_Laboratory isPrimaryTopicOf Neutral_Buoyancy_Laboratory.