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gravity

Definitions

  • WordNet 3.6
    • n gravity a manner that is serious and solemn
    • n gravity a solemn and dignified feeling
    • n gravity (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"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Every time the moon's gravity causes a ten-foot tide at sea, all the continents on earth rise at least six inches.
    • Gravity Importance, significance, dignity, etc; hence, seriousness; enormity; as, the gravity of an offense. "They derive an importance from . . . the gravity of the place where they were uttered."
    • Gravity (Mus) Lowness of tone; -- opposed to acuteness.
    • Gravity Sobriety of character or demeanor. "Men of gravity and learning."
    • Gravity The state of having weight; beaviness; as, the gravity of lead.
    • Gravity (Physics) The tendency of a mass of matter toward a center of attraction; esp., the tendency of a body toward the center of the earth; terrestrial gravitation.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: In space, astronauts are unable to cry, tears can't flow down, because of the lack of gravity.
    • gravity Weight, as contradistinguished from mass; precisely, the downward acceleration of terrestrial bodies, due to the gravitation of the earth modified by the centrifugal force due to its rotation on its axis. The amount of this acceleration is about 385. 1 inches (978 centimeters) per second at the sea-level and the equator, while at the poles it is 387.1 inches. Gravity is a little less on mountains than at the sea-level, in the proportion of a diminution of one thousandth part at every two miles of elevation. There are also other slight variations of gravity, from which the figure of the geoid (which see) can be calculated. Generally speaking, gravity is in excess where the radius vector of the geoid is in excess of that of the mean spheroid. [The words gravity and gravitation have been more or less confounded; but the most careful writers use gravitation for the attracting force, and gravity for the terrestrial phenomenon of weight or downward acceleration which has for its two components the gravitation and the centrifugal force. The centrifugal force at the equator is 1/289.4 of gravity. It is everywhere exerted in the plane of the meridian at right angles to the direction of the celestial pole. The direction of gravitation in middle latitudes is inclined about 11'.5 to the radius of the earth.
    • gravity Solemnity of deportment or character; sedateness of demeanor; seriousness.
    • gravity Importance; significance; dignity.
    • gravity In acoustics, the state of being low in pitch: opposed to acuteness.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: In the 1960's, the US spent millions developing a zero gravity pen for use in space
    • n Gravity grav′i-ti weightiness: that attraction between bodies, or acceleration of one toward another, of which the fall of a body to the ground is an example: state of being grave or sober: relative importance:
    • n Gravity grav′i-ti (mus.) lowness of a note
    • ***

Quotations

  • Charles Caleb Colton
    Charles%20Caleb%20Colton
    “Reply to wit with gravity, and to gravity with wit.”
  • Isidore Ducasse Lautreamont
    Isidore Ducasse Lautreamont
    “It is a power stronger than will. Could a stone escape from the laws of gravity? Impossible. Impossible, for evil to form an alliance with good.”
  • Wernher Von Braun
    Wernher Von Braun
    “It will free man from his remaining chains, the chains of gravity which still tie him to this planet. It will open to him the gates of heaven.”
  • Wernher Von Braun
    Wernher Von Braun
    “We can lick gravity but sometimes the paperwork is overwhelming.”
  • Charles Caleb Colton
    Charles%20Caleb%20Colton
    “Levity is often less foolish and gravity less wise than each of them appears.”
  • Lord Shaftesbury
    Lord Shaftesbury
    “It is the saying of an ancient sage that humor was the only test of gravity, and gravity of humor.”

Etymology

Webster's Revised Unabridged Dictionary
L. gravitas, fr. gravis, heavy; cf. F. gravité,. See Grave (a.) Grief
Chambers's Twentieth Century Dictionary
Fr. gravité—L. gravitat-emgravis, heavy.

Usage

In literature:

There was something religious in its quiet gravity.
"Tongues of Conscience" by Robert Smythe Hichens
The increase of velocity in a moving body by the force of gravity.
"The Sailor's Word-Book" by William Henry Smyth
Peat, which has a specific gravity of but 0.25, may be and is employed as fuel.
"Peat and its Uses as Fertilizer and Fuel" by Samuel William Johnson
He saw that Lucy did not for a moment appreciate the gravity of her father's position.
"The Explorer" by W. Somerset Maugham
In the meanwhile, the gravity of Chingachgook remained immovable.
"The Last of the Mohicans" by James Fenimore Cooper
Take the specific gravity, and, if above 1010, dilute with sterile water until that gravity is reached.
"The Elements of Bacteriological Technique" by John William Henry Eyre
Air, water, and ice, moving under the influence of gravity and other forces, all aid in this transfer.
"The Economic Aspect of Geology" by C. K. Leith
A few stones have nearly the same specific gravities, and in such cases it is well to apply other tests also.
"A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public" by Frank Bertram Wade
Beth watched them for a little with the same animal-like expressionless gravity of countenance, then moved off unconcernedly.
"The Beth Book" by Sarah Grand
Twist gravity and you have a perfect space drive.
"Empire" by Clifford Donald Simak
The gravity of his countenance was extraordinary.
"The Land of Thor" by J. Ross Browne
The two solutions are kept apart by gravity, as the copper sulphate is heavier than the zinc sulphate.
"How Two Boys Made Their Own Electrical Apparatus" by Thomas M. (Thomas Matthew) St. John
The gravity is nearly twice Earth normal.
"Deathworld" by Harry Harrison
She said them with the utmost gravity and determination.
"The Combined Maze" by May Sinclair
Dick worked like a horse too; he looked all the afternoon as though he had a tough job in hand that required the utmost gravity and despatch.
"Not Like Other Girls" by Rosa N. Carey
It is common old gravity that had been known so long, that was perfectly familiar to Galileo, and probably to Archimedes.
"Pioneers of Science" by Oliver Lodge
This is what causes the commonly known phenomena of gravity or weight.
"Astounding Stories of Super-Science February 1930" by Various
The energy of disintegration is used to drive the generators of the artificial gravity field, and there you are.
"Astounding Stories of Super-Science, November, 1930" by Various
Well, what's happened to old Jupe's gravity?
"The Red Hell of Jupiter" by Paul Ernst
He leaped to the side, going twenty feet or more with the press of his Earth muscles against the reduced gravity.
"Astounding Stories, April, 1931" by Various
***

In poetry:

Learn to win a lady's faith
Nobly, as the thing is high ;
Bravely, as for life and death —
With a loyal gravity.
"The Lady's Yes." by Elizabeth Barrett Browning
Where it may serve creation's end,
And 'mong the planets roll,
True to the laws of gravity
That marks its outer pole.
"Needs And Powers" by Jared Barhite
His face is filled with gravity;
His tongue is like a sword;
His presence awes both stout and high,
The world shakes at his word.
"Of Judgement" by John Bunyan
And is it insanity?
Nay, this is but the gravity
Of that vast mind,
That, on his Southland's altar wrought
And forged the bolts of warrior thought
Of thunder-kind.
"Stonewall Jackson" by Albery Allson Whitman
Great is Justice!
Justice is not settled by legislators and laws—it is in the Soul;
It cannot be varied by statutes, any more than love, pride, the
attraction of gravity, can;
"Great Are The Myths" by Walt Whitman
WEDGEWOOD (forgetting himself, lifting his mallet and flourishing it like an
auctioneer.)
Going! (Recollecting himself.)--I mean--(slowly and with gravity)--s-i-l-e-n-c-e i-n
t-h-e c-o-u-r-t! (meaning the audience.)
"The Maid Of Saxony; Or, Who's The Traitor? - Act III" by George Pope Morris

In news:

GRAIL Makes Accurate Moon Gravity Map.
Antony Wood on Skyscraper: Art and Architecture Against Gravity.
Well, I'm glad Jeff brought up Newton because I don't think he appreciates the gravity of the situation.
Military leaders, the Secretary of Defense, the President, and Congress speak of the gravity of the problem and the inadequacy of present approaches to care.
Despite gravity we aspire to the heights, earth, law, jesus, natural, down, gravity, water, mass, romans, death.
Wei's work often depicts him in apparently gravity-defying situations.
Tighter holes mean less wiggle room and variance, thus letting gravity do most of the work.
Maybe it was the gravity of the situation, of finally facing the Olympic moment they had trained for all their lives.
Using a gravity table after screening helps capture high-test-weight seed, says Shane Ohlde of Ohlde Seed Farms in Palmer, Kan. Quality means high yields and market opportunities.
You may think you'd have to travel far to get a gravity-defying experience, but the people Navitat Canopy Adventure in Wrightwood live for such thrills and can be found just an hour outside of downtown L.A.
The center of gravity changes during pregnancy, causing muscular imbalances and fatiguing.
As depicted in this artist's redition, the twin GRAIL spacecraft will map the moon's gravity field.
Gravity and even weightlessness were displayed in art form at the Colonial Theatre Thursday evening.
With over 10,000 votes cast, "Defying Gravity" took the honor of fan favorite.
Hughson said despite the numerous challenges involved with conducting a science experiment in zero-gravity space, the environment offers a unique opportunity for discovery.
***

In science:

These models either lack self-gravity, or, in the case of Passot et al. (1995) lack the resolution for self-gravity to become significant.
The Dynamical Interstellar Medium: Insights from Numerical Models
The non-anticommutative quantum gravity perturbation theory is finite for matter-free gravity and for matter interactions.
Non-Anticommutative Quantum Gravity
It follows that the higher order pure gravity loops and loops occurring in gravity-matter interactions will be finite.
Non-Anticommutative Quantum Gravity
We have developed a perturbative, non-anticommutative quantum gravity formalism by using the ♦-product in the gravity action, wherever products of gravitational fields and their derivatives occur in the superspace manifold.
Non-Anticommutative Quantum Gravity
If a theory contains linearized gravity and is Lorentz invariant, then it is well known that it must be either the complete generally covariant gravity theory or just the pure linearized theory.
M(atrix) Theory: Matrix Quantum Mechanics as a Fundamental Theory
For gravity, 4d Einstein gravity is generated from the multiple copy of the 3d ones, by referring to the two form gravity.
4d Gauge Theory and Gravity Generated from 3d Ones at High Energy
Einstien gravity is shown to be generated from the multiplication of the 3d Einstein gravities.
4d Gauge Theory and Gravity Generated from 3d Ones at High Energy
Different values of rc are interesting from a different perspective. A model with rc ∼ 1059 cm, i.e., with M(5) ∼ 10−3 eV, predicts a deviation from the Newtonian gravity at very small sub-millimeter distances (see detailed discussions in ) where the Newtonian gravity is just being tested experimentally .
Comments on "A Supernova Brane Scan"
Results in generalized gravity are characterized by two additional parameters which are the coupling between gravity and field f (φ, R), and the nonminimal coupling in the kinetic part of the field ω (φ).
Inflationary spectra in generalized gravity: Unified forms
Modifying terms appear naturally in the quantization processes of the gravity theory in a way toward the quantum gravity.
Inflationary spectra in generalized gravity: Unified forms
Einstein gravity, and the field in a class of generalized gravity theories.
Inflationary spectra in generalized gravity: Unified forms
We have shown that the growing solution of Φ is conserved in the large scale limit independently of the specifics of the gravity theories including changes between different gravity theories.
Inflationary spectra in generalized gravity: Unified forms
These results, in fact, include results from most of the inflationary scenarios based on generalized gravity as well as Einstein gravity theory.
Inflationary spectra in generalized gravity: Unified forms
If this is true, then two kinds of quantum gravity can be regarded as two different representations of quantum gravity.
Gauge Theory of Gravity
The relation between traditional quantum gravity and gravitational gauge theory of gravity is under studying now.
Gauge Theory of Gravity
***