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PLANETARY ORBITING

Fractal Science Fiction posted on Oct 28, 2008
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Description


Toutes les masses s'attirent mutuellement. Ce phénomène physique de la gravitation universelle, découvert par Newton alors qu'il cherchait à expliquer le mouvement de la chute des pommes, a été vérifié expérimentalement en suspendant à proximité les unes des autres des sphères remplies de mercure, et en mesurant avec une balance de torsion ultrasensible l'attraction des masses, ou attraction gravitationnelle, entre ces sphères. Cette attraction, qui se traduit par une accélération, dépend de deux facteurs : les masses en présence, et leur distance mutuelle. Elle est proportionnelle à la masse, et inversement proportionnelle au carré de la distance. Elle est universelle, et en tout point de l'univers, une masse est soumise à l'attraction de toutes les autres masses de l'univers. Ainsi, à la surface de la Terre, nous sommes soumis à l'attraction de notre propre planète, mais aussi à l'attraction de la Lune, qui est proche de nous, et du Soleil, plus lointain, mais considérablement plus massif. La Terre étant elle-même globalement attirée par la Lune et le Soleil, nous ne ressentons que la différence en plus ou en moins due à l'écart de distance qu'il peut y avoir entre le point où nous sommes et le centre de gravité de la Terre, par rapport à l'astre considéré. Cette attraction différentielle du Soleil et de la Terre est faible (quelques millionièmes de g, g étant la valeur moyenne de l'attraction terrestre à la surface de la Terre), mais elle est la cause essentielle du phénomène des marées. Les attractions des autres astres du système solaire sont négligeables à l'échelle humaine, et celles des soleils lointains encore plus négligeables, mais ce sont ces attractions qui sont responsables à l'échelle stellaire d'un certain aspect chaotique de l'évolution à long terme du système solaire, et à une échelle plus grande encore, du mouvement général des galaxies. All the masses attract themselves mutually. This physical phenomenon of the universal gravitation, discovered by Newton when he sought to explain the movement of the fall of apples, was checked in experiments by suspending in the vicinity to each other of the spheres filled with mercury, and by measuring with a supersensitive torsion balance the attraction of the masses, or gravitational attraction, between these spheres. This attraction, which results in an acceleration, depends on two factors: their mutual distance and involved masses. It is proportional to the mass, and inversely proportional to the square of the distance. It is universal, and in any point of the universe, a mass is subjected to the attraction of all the other masses of the universe. Thus, to the surface of the Earth, we are subjected to the attraction of our own planet, but also with the attraction of the Moon, which is close to us, and of the Sun, more remote, but considerably more massive. The Earth itself being overall attracted by the Moon and the Sun, we feel only the difference in more or less due to the variation of distance there can be between the point where we are and it centre of gravity of the Earth, compared to the star considered. This differential attraction of the Sun and the Earth is weak (some millionth of G, G being the value average of the terrestrial attraction on the surface of the Earth), but it is the essential cause of the phenomenon of the tides. Attractions of the other stars of the solar system are negligible with an human scale, and those of the remote suns even more negligible, but these are the attractions which are responsible with the stellar scale of a certain chaotic aspect of the long-term evolution of the solar system, and on a larger scale still, general movement of the galaxies.

Comments (17)


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Naoo

5:47AM | Tue, 28 October 2008

Universe of Color!

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Roger60

6:02AM | Tue, 28 October 2008

C´est bon. Formidable couleurs ou les formes.

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MrsRatbag

8:23AM | Tue, 28 October 2008

Very wonderful work; attraction and orbit are readily apparent in this beauty!

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pops

9:59AM | Tue, 28 October 2008

Love the colors and design

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Janiss

10:30AM | Tue, 28 October 2008

Des teintes plus que superbes...!

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amota99517

12:31PM | Tue, 28 October 2008

Super work!

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carlx

12:55PM | Tue, 28 October 2008

Fantastic space flame!!!

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jocko500

6:33PM | Tue, 28 October 2008

wonderful looking here love the colors and the design is wonderful

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bpclarke

6:58PM | Tue, 28 October 2008

Very spatial and vibrant piece! Gorgeous forms and colors. Bunny

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afugatt

9:52PM | Tue, 28 October 2008

Beautiful!

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NekhbetSun

7:24AM | Wed, 29 October 2008

Gorgeous S

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MagikUnicorn

10:39AM | Wed, 29 October 2008

Superbement bienfait BraVo Claude

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three_grrr

10:48PM | Wed, 29 October 2008

Beautiful illustration of the workings of gravity! If only they had used these illustrations in school, LOL, I might have learned about mathematics and geometry and such!

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A_Sunbeam

4:22AM | Sun, 02 November 2008

Great fractal work - and great colours!

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amirapsp

1:34PM | Fri, 07 November 2008

Oustanding fractal

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mtc

3:06PM | Fri, 07 November 2008

Dans cettge image encore, un bel effet de mouvements et de volumes. Très joli.

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nazul

6:03PM | Sat, 08 November 2008

Powerfull fractal !!!


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