Ancient Greek cosmology postulated Earth as the static tenderness of a Universe rotating around it, citing as evidence, the fact that the stars bug out to move around the skies. This model held true from the time of bulls eye and Hesiod, through Aristotle, right into the 17th Century when Galileo and the invention of the mash helped prove definitively that this was not the case.
Philolaus (500BC) and Copernicus (AD1543) had both previously introduced alternative systems which rent the Earth to be in query but, at the time, neither was accepted as true. Copernicus had suggested that the Earth rotates in an eastwards instruction while simultaneously orbiting the Sun. However, it was believed at the time, that the Earth could not be rotating; otherwise an object dropped from a tower would land to the double-u of the tower, in accordance with Aristotelian impartialitys of motion.
It was not until Foucaults pendulum experiment in 1851 that the incontrovertible proof of the rotation of the Earth was obtained.
In this experiment a 28kg spherical mass was suspended on a coarse wire from the ceiling of the Pantheon in Paris. The pendulum was set in motion swinging in one particular direction.
A magnetic device gistd in the floor beneath it acts upon a piston chamber inside the spherical mass, assuring continual motion (it compensates for rubbing and air resistance thus allowing perfect manifestation of the law of the pendulum).
If we imagine that the tip of the pendulum traced a path in a layer of damp sand on the floor of the Pantheon, we may fall victim to the illusion
that the Pendulums plane of oscillation has moved large circle... in thirty two hours, describing an ellipse that rotates around its centre at a speed proportionate to the
sine of its latitude
                        ...
If you want to take off a full essay, order it on our website: Ordercustompaper.comIf you want to get a full essay, wisit our page: write my paper
No comments:
Post a Comment