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weightlessness    音标拼音: [w'etləsnəs]
n. 无重状态

无重状态

weightlessness
n 1: the property of being comparatively small in weight; "the
lightness of balsa wood" [synonym: {lightness},
{weightlessness}] [ant: {heaviness}, {weightiness}]

34 Moby Thesaurus words for "weightlessness":
airiness, ascent, asteroids, aurora particles, blackout,
bubbliness, buoyancy, cosmic particles, cosmic ray bombardment,
daintiness, delicacy, downiness, ethereality, floatability,
fluffiness, foaminess, frothiness, gentleness, gossameriness,
intergalactic matter, lack of weight, levitation, levity,
lightness, meteor dust impacts, meteors, radiation, softness,
space bullets, tenderness, the bends, unheaviness, volatility,
yeastiness

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  • Weightlessness - Wikipedia
    Weightlessness is the complete or near-complete absence of the sensation of weight, i e , zero apparent weight It is also termed zero g-force, or zero-g (named after the g-force) [1] or, misleadingly, zero gravity
  • Weightlessness | Definition, Effects, Facts | Britannica
    weightlessness, condition experienced while in free-fall, in which the effect of gravity is canceled by the inertial (e g , centrifugal) force resulting from orbital flight The term zero gravity is often used to describe such a condition
  • Weightlessness - HyperPhysics
    The phenomenon of "weightlessness" occurs when there is no force of support on your body When your body is effectively in "free fall", accelerating downward at the acceleration of gravity, then you are not being supported
  • How Weightlessness Works - HowStuffWorks
    While microgravity -- which is the very low gravity environment that creates the illusion of weightlessness -- looks like fun, it places great demands on your body
  • Watch: Moment Artemis II engines cut off as crew enters near weightlessness
    ANU Astrophysicist and Cosmologist Dr Brad Tucker analyses the Main Engine Cut Off (MECO) stage of NASA’s Artemis II mission
  • Weightlessness in Physics: Meaning, Causes Key Examples - Vedantu
    Weightlessness is the sensation of having zero apparent weight, but an object's mass remains unchanged An astronaut in orbit is weightless but still has the same mass
  • Why Do I Feel Weightless? The Science Behind the Sensation
    The sensation of weightlessness describes a feeling of lightness or the absence of perceived weight, rather than a true lack of gravitational force While gravity continuously acts upon everything, weightlessness arises when the usual forces supporting the body are temporarily reduced or absent
  • Weightlessness - New World Encyclopedia
    Weightlessness is the experience (by people and objects) during free-fall, of having no apparent weight This condition is also known as microgravity
  • Weight, apparent weight, and weightlessness - Khan Academy
    The gravitational force exerted by an astronomical body on a relatively small nearby object is called weight The magnitude of the apparent weight of an object is the magnitude of the normal force exerted on the object
  • Why Do We Feel Weightless? - BYJUS
    What is meant by weightlessness? Weightlessness is a term used to describe the sensation of a complete or near-complete absence of weight





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