WEIGHTLESSNESS - definizione. Che cos'è WEIGHTLESSNESS
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Cosa (chi) è WEIGHTLESSNESS - definizione


Weightlessness         
  • NASA's KC-135A plane ascending for a zero gravity maneuver
  • In the left half, the spring is far away from any gravity source. In the right half, it is in a uniform gravitation field. '''a''') Zero gravity and weightless '''b''') Zero gravity but not weightless (Spring is rocket propelled) '''c''') Spring is in free fall and weightless '''d''') Spring rests on a plinth and has both weight<sub>1</sub> and weight<sub>2</sub>.
  • Zero-gravity testing at the NASA [[Zero Gravity Research Facility]]
  • Zero gravity flight maneuver
ABSENCE OF STRESS AND STRAIN RESULTING FROM EXTERNALLY APPLIED MECHANICAL CONTACT-FORCES, TYPICALLY NORMAL FORCES (FROM FLOORS, SEATS, BEDS, SCALES, ETC.)
Zero-G; Zero G; Zero-g; Zero g; Zero Gravity; Weightlessness simulation; Weightlessness countermeasures; Zero-gravity; Low gravity; Low-gravity; Zero gravity; Zero-Gravity; Reduced gravity; Reduced Gravity; Zero-gee; Zero gee; Zerogravity; Effects of low gravity on humans; Hypogravity
Weightlessness is the complete or near-complete absence of the sensation of weight. This is also termed zero-G, although the more correct term is "zero G-force".
zero gravity         
  • NASA's KC-135A plane ascending for a zero gravity maneuver
  • In the left half, the spring is far away from any gravity source. In the right half, it is in a uniform gravitation field. '''a''') Zero gravity and weightless '''b''') Zero gravity but not weightless (Spring is rocket propelled) '''c''') Spring is in free fall and weightless '''d''') Spring rests on a plinth and has both weight<sub>1</sub> and weight<sub>2</sub>.
  • Zero-gravity testing at the NASA [[Zero Gravity Research Facility]]
  • Zero gravity flight maneuver
ABSENCE OF STRESS AND STRAIN RESULTING FROM EXTERNALLY APPLIED MECHANICAL CONTACT-FORCES, TYPICALLY NORMAL FORCES (FROM FLOORS, SEATS, BEDS, SCALES, ETC.)
Zero-G; Zero G; Zero-g; Zero g; Zero Gravity; Weightlessness simulation; Weightlessness countermeasures; Zero-gravity; Low gravity; Low-gravity; Zero gravity; Zero-Gravity; Reduced gravity; Reduced Gravity; Zero-gee; Zero gee; Zerogravity; Effects of low gravity on humans; Hypogravity
¦ noun Physics the state in which there is no apparent force of gravity acting on a body, either because the force is locally weak or because both the body and its surroundings are freely and equally accelerating under the force.
Micro-g environment         
  • Six astronauts who had been in training at the Johnson Space Center for almost a year are getting a sample of a micro-g environment
  • Astronaut Tracy Dyson talks about studies into cardiovascular health aboard the International Space Station.
ENVIRONMENT WITH EXTREMELY LOW APPARENT GRAVITATIONAL FORCE
Microgravity; Micro-gravity; Microgravity environment; Micro g; Micro G; Micro-G; ΜG; Μ-gravity; Micro-g
The term micro-g environment (also μg, often referred to by the term microgravity) is more or less synonymous with the terms weightlessness and zero-g, but emphasising that g-forces are never exactly zero—just very small (on the ISS, for example, the small g-forces come from tidal effects, gravity from objects other than the Earth, such as astronauts, the spacecraft, and the Sun, air resistance, and astronaut movements that impart momentum to the space station). The symbol for microgravity, μg, was used on the insignias of Space Shuttle flights STS-87 and STS-107, because these flights were devoted to microgravity research in low Earth orbit.
Esempi dal corpus di testo per WEIGHTLESSNESS
1. Glass forms, crystalline and suggestive of weightlessness, seemed to be the stuff of transcendence.
2. Blaine‘s underwater environment was similar to the weightlessness experienced by astronauts, he said.
3. Not just to rest, but to experience the personal side of weightlessness, space and the cosmos.
4. They will not experience weightlessness because they are only orbiting near space.
5. Passengers will experience three minutes of weightlessness as well as astonishing views of the Earth.