Precis of Celestial Mechanics (extracted) by claude19
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Description
Au début de l’humanité, il y a quelques milliers d’années, l’observation des astres ne leur servait qu’à marquer certaines étapes dans le déroulement du temps. Bien sûr, l’alternance du jour et de la nuit, les phases de la Lune et la position changeante des planètes retinrent rapidement leur attention. Ils remarquèrent également très vite que le mouvement du Soleil parmi les étoiles marquait l’enchaînement des saisons, ce qui était d’une très grande importance pour l’agriculture. Les premières découvertes n’ont été que très subjectives, mais elles eurent pour conséquence directe d’exciter la curiosité des hommes qui ne tardèrent pas à rechercher la cause de tous ces phénomènes jusqu’alors uniquement observés. De là découlent les premières mesures précises de la position des astres. D’abord uniquement observation, l’étude du ciel devint petit à petit une véritable science à part entière.Les premiers principes découverts furent d’abord attribués à des êtres supérieurs, et non considérés comme des conséquences directes d’autres lois régissant les relations des corps entre eux. Pendant longtemps, on attribua même une action sur notre existence à la position des planètes dans le ciel, du Soleil le long du zodiaque et aux phases de la Lune. Malgré sa base irrationnelle et sa crédibilité douteuse, l’astronomie doit beaucoup à l’astrologie, en ce qu’elle provoqua chez les hommes un très grand intérêt envers les astres.
L’astronomie se démarque depuis toujours des autres sciences. Elle est en effet, dans son essence même, une science basée sur l’observation et non sur l’expérimentation, comme les sciences physiques ou la chimie. Les astronomes ne peuvent faire des expériences sur le milieu qu’ils tudient, mais doivent se contenter de l’observer et de tirer des conclusions de leurs observations. C’est ce qui explique que les progrès de l’astronomie sont directement liés au développement des instruments d’observation, bien plus que pour toute autre science.
At the beginning of humanity, a few thousands of years ago, the observation of the stars was only used to them to mark certain stages in the course of time. Of course, the alternation of the day and the night, the phases of the Moon and the changing position of planets held their attention quickly. They also noticed very quickly that the movement of the Sun among stars marked the sequence of the seasons, which was of very great importance for agriculture. The first discovered ones were only very subjective, but they had as a direct consequence to excite the curiosity of the men who were not long in seeking the cause of all these phenomena hitherto only observed. From there the first precise measurements rise from the position of the stars. Initially only observation, the study of the sky gradually became a true science with whole share.
The first principles discovered were initially allotted to beings higher, and not considered as direct consequences of other laws governing the relations of the bodies between them. For a long time, one allotted even a share on our existence to the position of planets in the sky, the Sun along the zodiac and with the phases of the Moon. In spite of its irrational base and its doubtful credibility, astronomy must much with astrology, in what it caused at the men a very great interest towards the stars. Astronomy is dissociated since always other sciences. It is indeed, essentially, a science based on the observation and not on the experimentation, like physical sciences or chemistry. The astronomers cannot make experiments on the medium which they tudient, but must be satisfied to observe it and draw the conclusions with their observations. It is what explains why progress of astronomy is directly related to the development of the instruments of observation, much more than for any other science.
Comments (23)
MagikUnicorn
SUPERBE, et quelle histoire abracadabrante ;-) Bravo P.S. 7TH COMPLEX EST FERMER :)
Chipka
WOW. Amazing. The image recalls the great Astronomical Clock in Prague...but more than that, it's beautiful in its own right and profoundly moving in many ways. I love it!
Naoo
--> I LOVE it <--
Suncat1
WOW!V This is ebautiful!
Mondwin
Très superbè image!!!!!!!!!!!!!!!!!!!!!Bravissimo!V:DDD.Ciao Whylma
polterbyte
J'aime l'image et le texte beaucoup.
bakapo
I love the painted effects in this, the colors are bright and interesting, too.
Janiss
Fabuleux Claude et encore de nouvelles connaissance à se mettre dans la tête.. bravo!
carlx
Wonderful flame and presentation!!!
stick
Awesome, I don't normally use a white background, but this one is great!!
amota99517
Very nice work! Love the use of the negative colors.
bpclarke
Magnificent! Gorgeous design and use of colors. A splendid work. Bunny
MrsRatbag
Lovely image, something about it says intelligence and precision. I think it would look awesome as a china pattern. I'd buy it, anyways!
vxbob
Excellent
NekhbetSun
Love this one Claude !
fractility
Very nice indeed!
e-brink
This is stunning. An excellent image!
afugatt
Amazing art!
BloodFlowers
Quel bel exposé sur l'astronomie ...merci Claude L'image l'illustre parfaitemant
jockc
I like it a lot
three_grrr
Stunning sky chart of early times, perhaps influenced by visitations of aliens to early civilizations. Later civilizations, such as ours, no longer believe these things happened. They instead rely only on what their eyes can see, thus needing more and better arrays of telescopes of humongous magnifications, even some built out just beyond our atmosphere in order to attain clarity not possible when having to deal with the atmosphere. Another magnificent render and commentary. Excellent using the light background, thus making it appear more like an actuall chart then a fractal!
TheAnimaGemini
Beautiful. Love the purity here. Outstanding.
amirapsp
Beautiful artwork!!