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The law of universal gravitation
It is
considered, that a core of dynamics of Newton is the concept of force,
and the primary goal of dynamics consists in an establishment of the
law from the given movement and, on the contrary, in definition of the
law of movement of bodies on the given force. From Kepler Newton's laws
has deduced existence of the force directed to the Sun which was inversely
proportional to a square of distance of planets from the Sun. Having
generalized the ideas stated by Kepler, Gjujgensom, Descartes, Borelli,
Gukom, Newton has given to them the exact form of the mathematical law
according to which existence in the nature of force of universal gravitation
causing an attraction ph. Force of gravitation affirmed is directly
proportional to product of weights of gravitating bodies and in inverse
proportion to a square of distance between them or is mathematical:
,
Where G - a gravitational constant
The given law describes interaction
of any bodies - important only that the distance between bodies was
great enough in comparison with their sizes, it allows to accept bodies
for material points. In the theory of gravitation of Newton is accepted,
that force of gravitation is transferred from one gravitating body to
another instantly, at what without means of any environments. The law
of universal gravitation has caused long and furious discussions. It
was not casual, as this law had the important philosophical value. The
essence consist that up to Newton the purpose of creation of physical
theories was revealing and representation of the mechanism of the physical
phenomena in its all details. When it to make the argument about so-called
" the latent qualities " which do not give in to detailed
interpretation was not possible, put forward. Bacon and Descartes references
to " the latent qualities " have declared unscientific. Descartes
considered what to understand an essence of a natural phenomenon it
is possible only in the event that it evidently to imagine. So, it represented
the phenomena of gravitation by means of radio whirlwinds. In conditions
of a wide circulation of similar representations the law of universal
gravitation of Newton in spite of the fact that showed conformity made
on its basis to astronomical supervision with unknown earlier accuracy,
called in question on the ground that the mutual attraction of bodies
very much reminded the doctrine of " the latent qualities ".
And though Newton has established the fact of its existence on the basis
of the mathematical analysis and experimental data, the mathematical
analysis was not included yet strongly into consciousness of researchers
as enough reliable method. But the aspiration to limit physical research
by the facts which are not applying for absolute true, has allowed Newton
to finish formation of physics as independent science and to separate
it from physiophilosophy with its claims for absolute knowledge.
In the law of universal gravitation
the science has received the sample of the law of the nature as absolutely
exact, everywhere applicable rules, bar none, with precisely certain
consequences. This law has been included by the Edging in its philosophy
where the nature was represented by an empire of necessity as opposed
to morals - to an empire of freedom.
The physical concept of Newton
was an original wreath of physics of XVII century. The static approach
to the Universe has been replaced dynamic. The experimental-mathematical
method of research, having allowed to solve many problems of physics
of XVII century, has appeared suitable for the decision of physical
problems within two centuries.