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gravity    音标拼音: [gr'ævəti] [gr'ævɪti]
n. 严肃,严重,认真;引力,地球引力,重力

严肃,严重,认真;引力,地球引力,重力

gravity
n 1: (physics) the force of attraction between all masses in the
universe; especially the attraction of the earth's mass for
bodies near its surface; "the more remote the body the less
the gravity"; "the gravitation between two bodies is
proportional to the product of their masses and inversely
proportional to the square of the distance between them";
"gravitation cannot be held responsible for people falling
in love"--Albert Einstein [synonym: {gravity}, {gravitation},
{gravitational attraction}, {gravitational force}]
2: a manner that is serious and solemn [synonym: {graveness},
{gravity}, {sobriety}, {soberness}, {somberness},
{sombreness}]
3: a solemn and dignified feeling [synonym: {gravity}, {solemnity}]
[ant: {levity}]

Gravity \Grav"i*ty\, n.; pl. {Gravities}. [L. gravitas, fr.
gravis heavy; cf. F. gravit['e]. See {Grave}, a., {Grief}.]
1. The state of having weight; beaviness; as, the gravity of
lead.
[1913 Webster]

2. Sobriety of character or demeanor. "Men of gravity and
learning." --Shak.
[1913 Webster]

129 Moby Thesaurus words for "gravity":
G, G suit, acuteness, adduction, affinity, allurement,
apogeotropism, attractance, attraction, attractiveness,
attractivity, augustness, avoirdupois, beef, beefiness, bleakness,
buckram, capillarity, capillary attraction, centripetal force,
ceremonial, ceremoniousness, ceremony, courtliness, darkness,
deadweight, decorousness, demureness, dignifiedness, dignity,
dismalness, drag, draw, dreariness, earnestness, elevation,
exigency, extrinsicality, fatness, form, formality, formalization,
geotropism, gloom, gloominess, grandeur, gravitation, graviton,
grimness, gross weight, heaviness, heft, heftiness, immediacy,
impersonality, importance, kingliness, liveweight, loftiness,
long face, lordliness, magnetism, magnitude, majesty, mass,
moderation, momentousness, mutual attraction, neat weight, net,
net weight, no joke, no laughing matter, nobility, overbalance,
overweight, pomp, pomposity, ponderability, ponderosity,
ponderousness, poundage, pride of bearing, pride of place,
primness, princeliness, proud bearing, pull, pulling power,
regality, reserve, rigidness, ritual, rituality, sedateness,
seriousness, severity, significance, sober-mindedness, soberness,
sobersidedness, sobersides, sobriety, solemnity, solemnness,
somberness, specific gravity, staidness, starchiness, stateliness,
stiffness, stiltedness, straight face, stylization, sublimity,
sympathy, temperance, thoughtfulness, tonnage, traction, tug,
underweight, urgency, venerability, wearifulness, wearisomeness,
weight, weightiness, worthiness


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  • What is gravity? - NASA
    Newton's "law" of gravity is a mathematical description of the way bodies are observed to attract one another, based on many scientific experiments and observations The gravitational equation says that the force of gravity is proportional to the product of the two masses (m 1 and m 2), and inversely proportional to the square of the distance (r) between their centers of mass Mathematically
  • Matter in Motion: Earths Changing Gravity | NASA Earthdata
    A new satellite mission sheds light on Earth's gravity field and provides clues about changing sea levels
  • Gravity Gravitational Field - NASA Earthdata
    Gravity is the field around physical bodies, such as planets, that draws objects toward its center Earth's gravitational field can be measured by orbiting satellites that can detect changes to it These variations are related to change or transportation of mass, which can provide information on ocean circulation, glacial melt, droughts, or geodesy
  • StarChild: Glossary - NASA
    GRAVITATIONAL PULL See Gravity GRAVITY The force of attraction between two objects which is influenced by the mass of the two objects and the distance between the two objects GYROSCOPE A heavy wheel or disk mounted so that its axis can turn freely in one or more directions A spinning gyroscope tends to resist change in the direction of its axis
  • Glacier Power: How do Glaciers Move? - NASA Earthdata
    Glaciers Are Solid Rivers A glacier is a large accumulation of many years of snow, transformed into ice This solid crystalline material deforms (changes) and moves Glaciers, also known as “rivers of ice,” actually flow Gravity is the cause of glacier motion; the ice slowly flows and deforms (changes) in response to gravity A glacier molds itself to the land and also molds the land as
  • How do we know that dark matter exists? - NASA
    The cluster does not behave as scientists would expect it to if only the visible matter is generating the gravity present in the cluster 'Dark matter' theory suggests that a huge amount of dark (invisible to direct observation) matter, interacting gravitationally with the normal, visible matter in the universe, exists
  • StarChild: Stars - NASA
    Gravity causes the last of the star's matter to collapse inward and compact This is the white dwarf stage which is extremely dense White dwarfs shine with a white hot light but once all of their energy is gone, they die The star has now reached the black dwarf phase
  • Teachers Center Activity: Gravity Effects on Planet Motion - NASA
    1 Introduction: Review the definition of gravity Drop a ball and explain why it falls downward Explain that the strength of a gravitational pull is determined by the masses of the objects involved and the distance between the objects Hold up a scale model of Earth and a scale model of the Sun Inquire as to which object would exert a stronger pull
  • StarChild: Galaxies - NASA
    A galaxy is a cluster of stars, dust, and gas which is held together by gravity Galaxies are scattered throughout the universe and they vary greatly in size A galaxy may be alone or it may be in a large group of galaxies called a "supercluster" Galaxies are classified by scientists according to their shape and appearance An irregular galaxy has an undefined shape and is full of young stars
  • StarChild: Glossary - NASA
    GRAVITY The invisible force between objects that makes objects attract each other GRAVITATIONAL PULL The attraction that one object has for another object due to the invisible force of gravity H HURRICANE A very, very strong windstorm where the wind blows in circles at more than 46 kilometers per hour Heavy rains often come with the winds I





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