(2) A planet moves in its orbit in such a manner that a line drawn from the planet to the Sun always sweeps out equal areas in equal times. The effective modal of the solar system was left to Galileo, who in 1930 published his dialogue on the two chief systems of the world. He supported his claims with elaborate evidence derived from the study of physics. He also used a telescope that was recently made back then by Dutch to observe the sky, and he discovered that the moon is rather mountainous than smooth. In the field of mechanics, Galileo was able to come up with the “free fall” law: “the distance, s, varies as the square of the time, t2”.
His principle of inertia enabled him to meet the traditional physical objections to the Earth’s motion: since a body in motion tends to remain in motion, projectiles and other objects on the terrestrial surface will tend to share the motions of the Earth, which will thus be imperceptible to someone standing on the …show more content…
Everybody continues in its state of rest or of motion in a straight line unless it is compelled to change that state by force impressed on it;
2. The change of motion is proportional to the motive force impressed and is made in the direction of the straight line in which that force is impressed;
3. To every action there is always opposed an equal reaction: or, the mutual actions of two bodies upon each other are always equal.
The works of Euclid (c. 300BCE) in Greece was the origin of optics. In 1604, Kepler published a book called Astronomiae Pars Optica (The Optical Part of Astronomy)
Kepler approached optics by breaking organic reality into what he considered to be ultimately real units. He developed a geometric theory of lenses, providing the first mathematical account of Galileo’s telescope.
Also Newton conducted a theory called the theory of colours it considered “colours to be the result of the modification of white light”. Christiaan Huygens also wrote many books in optics like Opera reliqua (also known as Christiani Hugenii Zuilichemii, dum viveret Zelhemii toparchae, opuscula posthuma) and the Traité de la lumière. “Huygens regarded light as something of a pulse phenomenon, but he explicitly denied the periodicity of light