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Sir Issac Newton
Discovery of Gravity
Scientific Revolution
Newton‘s theory of gravitation
Equivalence principle
General Relativity
Gravity and astronomy
Speed of Gravity
Earth’s Gravity
Bibliography
Modern work on gravitational theory began with the work of Galileo
Galilei in the late 16th and early 17th centuries. In his famous (though
possibly apocryphal experiment dropping balls from the Tower of Pisa,
and later with careful measurements of balls rolling down inclines,
Galileo showed that gravitation accelerates all objects at the same rate.
This was a major departure from Aristotle's belief that heavier objects
accelerate faster.Galileo postulated air resistance as the reason that
lighter objects may fall more slowly in an atmosphere. Galileo's work set
the stage for the formulation of Newton's theory of gravity.
Galileo Galilei
Where F is the force, m1 and m2 are the masses of the objects
interacting, r is the distance between the centers of the masses
and G is the gravitational constant.
The application of Newton's law of gravity has enabled the acquisition
of much of the detailed information we have about the planets in our
solar system, the mass of the Sun, and details of quasars; even the
existence of dark matteris inferred using Newton's law of gravity.
Although we have not traveled to all the planets nor to the Sun, we
know their masses. These masses are obtained by applying the laws of
gravity to the measured characteristics of the orbit. In space an object
maintains its orbit because of the force of gravity acting upon it. Planets
orbit stars, stars orbitGalactic Centers, galaxies orbit a center of mass in
clusters, and clusters orbit in superclusters. The force of gravity exerted
on one object by another is directly proportional to the product of those
objects' masses and inversely proportional to the square of the distance
between them.
BIBLIOGRAPHY
Gravity
Gravity

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Gravity

  • 1.
  • 2.
  • 3.
  • 4.
  • 6. Discovery of Gravity Scientific Revolution Newton‘s theory of gravitation Equivalence principle General Relativity Gravity and astronomy Speed of Gravity Earth’s Gravity Bibliography
  • 7.
  • 8. Modern work on gravitational theory began with the work of Galileo Galilei in the late 16th and early 17th centuries. In his famous (though possibly apocryphal experiment dropping balls from the Tower of Pisa, and later with careful measurements of balls rolling down inclines, Galileo showed that gravitation accelerates all objects at the same rate. This was a major departure from Aristotle's belief that heavier objects accelerate faster.Galileo postulated air resistance as the reason that lighter objects may fall more slowly in an atmosphere. Galileo's work set the stage for the formulation of Newton's theory of gravity. Galileo Galilei
  • 9. Where F is the force, m1 and m2 are the masses of the objects interacting, r is the distance between the centers of the masses and G is the gravitational constant.
  • 10.
  • 11.
  • 12. The application of Newton's law of gravity has enabled the acquisition of much of the detailed information we have about the planets in our solar system, the mass of the Sun, and details of quasars; even the existence of dark matteris inferred using Newton's law of gravity. Although we have not traveled to all the planets nor to the Sun, we know their masses. These masses are obtained by applying the laws of gravity to the measured characteristics of the orbit. In space an object maintains its orbit because of the force of gravity acting upon it. Planets orbit stars, stars orbitGalactic Centers, galaxies orbit a center of mass in clusters, and clusters orbit in superclusters. The force of gravity exerted on one object by another is directly proportional to the product of those objects' masses and inversely proportional to the square of the distance between them.
  • 13.
  • 14.