Talk:Timeline of classical mechanics

message: Um... What does the Doppler effect have to do with classical mechanics? C.W Christoph.westbrook (talk) 13:09, 11 July 2008 (UTC)
thread_title: Doppler

message: Abū Rayhān al-Bīrūnī introduces experimental scientific methods in statics and dynamics, and unifies them into the science of mechanics; he also combines the fields of hydrostatics with dynamics to create the field of hydrodynamics, which he helped mathematize;[1] and realizes that acceleration is connected with non-uniform motion[20
Their is going to have to be some serious modifications to this statement.  First thing no where in the quotes that are provided, and when one reads the source, does the author make the claim that al-biruni unified statics into dynamics to create the science of mechanics, in fact both are really just areas of study in mechanics, 2 different sections, and create the science of mechanics, that would have already existed since Aristotle, and certainly under Archimedes which developed the first qualitative law in mechanics, Archimedes principle.  To say the least to make a bold statement such as this person founded the science of mechanics would require a statement outright making such a claim, which none of the sources listed here, either in the quotes provided or when one actually reads the source (available on google books)makes.  Secondly upon consulting the sources the authors do not make the claim that al-Biruni or Al-Khazni introduced the scientific method into mechanics, yet the in this quote the words of scientific methods link up to the scientific method on wiki.  The authors are merely claiming that both men devised experiments to prove the weights of objects not that they used the scientific method, by the modern definition, in determining weights.  Thirdly, upon consulting the sources, no where do either sources claim that al-Biruni introduces the scientific method or experimentation into statics and dynamics.
Here are the 2 quotes provided to back the claims made in the above statement 
"Numerous fine experimental methods were developed for determining the specific weight, which were based, in particular, on the theory of balances and weighing. The classical works of al-Biruni and al-Khazini can by right be considered as the beginning of the application of experimental methods in medieval science." 
"One of the most important of al-Biruni's many texts is Shadows which he is thought to have written around 1021. [...] Shadows is an extremely important source for our knowledge of the history of mathematics, astronomy, and physics. It also contains important ideas such as the idea that acceleration is connected with non-uniform motion, using three rectangular coordinates to define a point in 3-space, and ideas that some see as anticipating the introduction of polar coordinates."
Where in any of these quotes are the above statements made: Al-Biruni introduces the scientific method into statics, and dynamics, unifies the 2, and founds the science of mechanics.  Not only do these quotes not make those claims but when one reads these sources the authors make no such claims.  Needless to say the above statements are taken completely out of context and totally exaggerated.  Lastly, in order to make such claims one would require multiple sources to explicitly make such claims, rather then someone inferring them.  I will be making changes to the above statement over a period of time.Belief action (talk) 01:33, 31 July 2012 (UTC)
thread_title: Early Timeline of classical Mechanics

message: Should the mechanics timeline include Pierre-Simon Laplace who completed much of celestial mechanics (including the orbits of Jupiter and Saturn) until Einstein's work on the orbit of Mercury?
From Wikipedia article  Pierre-Simon Laplace:
"Sir Isaac Newton had published his Philosophiae Naturalis Principia Mathematica in 1687 in which he gave a derivation of Kepler's laws, which describe the motion of the planets, from his laws of motion and his law of universal gravitation. However, though Newton had privately developed the methods of calculus, all his published work used cumbersome geometric reasoning, unsuitable to account for the more subtle higher-order effects of interactions between the planets."
"Laplace presented a memoir on planetary inequalities in three sections, in 1784, 1785, and 1786. This dealt mainly with the identification and explanation of the perturbations now known as the "great Jupiter–Saturn inequality". Laplace solved a longstanding problem in the study and prediction of the movements of these planets. He showed by general considerations, first, that the mutual action of two planets could never cause large changes in the eccentricities and inclinations of their orbits; but then, even more importantly, that peculiarities arose in the Jupiter–Saturn system because of the near approach to commensurability of the mean motions of Jupiter and Saturn."
"Laplace's analytical discussion of the solar system is given in his Méchanique céleste published in five volumes. The first two volumes, published in 1799, contain methods for calculating the motions of the planets, determining their figures, and resolving tidal problems. The third and fourth volumes, published in 1802 and 1805, contain applications of these methods, and several astronomical tables. The fifth volume, published in 1825, is mainly historical, but it gives as appendices the results of Laplace's latest researches. ...The Mécanique céleste is not only the translation of Newton's Principia into the language of the differential calculus, but it completes parts of which Newton had been unable to fill in the details."
see also:
http://www.nndb.com/people/871/000031778/  — Preceding unsigned comment added by Jim.Callahan,Orlando (talk • contribs) 11:33, 6 June 2013 (UTC)
thread_title:  Pierre-Simon Laplace 

message: Re WP:Jagged 85 cleanup, this article is listed at Cleanup4. Jagged inserted the following which has been removed:
* 1000-1030 - Al-Biruni introduces the experimental scientific method in mechanicsMariam Rozhanskaya and I. S. Levinova (1996), "Statics", in Roshdi Rashed, ed., Encyclopedia of the History of Arabic Science, Vol. 2, p. 614-642 [642]. Routledge, London and New York. and realizes that acceleration is connected with non-uniform motion
* 1000-1030 - AlhazenAbdus Salam (1984), "Islam and Science". In C. H. Lai (1987), Ideals and Realities: Selected Essays of Abdus Salam, 2nd ed., World Scientific, Singapore, p. 179-213.Seyyed Hossein Nasr, "The achievements of Ibn Sina in the field of science and his contributions to its philosophy", Islam & Science, December 2003. and AvicennaFernando Espinoza (2005). "An analysis of the historical development of ideas about motion and its implications for teaching", Physics Education 40 (2), p. 141.Seyyed Hossein Nasr, "Islamic Conception Of Intellectual Life", in Philip P. Wiener (ed.), Dictionary of the History of Ideas, Vol. 2, p. 65, Charles Scribner's Sons, New York, 1973-1974. develop the concepts of inertia and momentum
Jagged also inserted the following which has been edited but which is still present. Perhaps it should be removed or pruned.
* 1100-1138 - Avempace develops the concept of a reaction forceShlomo Pines (1964), "La dynamique d’Ibn Bajja", in Mélanges Alexandre Koyré, I, 442-468 [462, 468], Paris.
(cf. Abel B. Franco (October 2003). "Avempace, Projectile Motion, and Impetus Theory", Journal of the History of Ideas 64 (4), p. 521-546 [543].)
* 1100-1165 - Hibat Allah Abu'l-Barakat al-Baghdaadi discovers theorizes that force is proportional to acceleration rather than velocity, a fundamental law in classical mechanics
(cf. Abel B. Franco (October 2003). "Avempace, Projectile Motion, and Impetus Theory", Journal of the History of Ideas 64 (4), p. 521-546 [528].)
* 1500-1528 - Al-Birjandi develops the theory of "circular inertia" to explain Earth's rotationF. Jamil Ragep (2001), "Tusi and Copernicus: The Earth's Motion in Context", Science in Context 14 (1-2), p. 145–163. Cambridge University Press.
This was raised here. Johnuniq (talk) 03:12, 31 May 2021 (UTC)
thread_title:  Jagged cleanup