As a formal concept, the method has variously been ascribed to Alhazen, René Descartes ( Discourse on the Method ) and Galileo Galilei.

Mainly Galileo Galilei ( 1564 – 1642 ) but also Marin Mersenne ( 1588 – 1648 ), independently, discovered the complete laws of vibrating strings ( completing what Pythagoras and Pythagoreans had started 2000 years earlier ).

* 1609 – Galileo Galilei demonstrates his first telescope to Venetian lawmakers.

Although observations of some aerodynamic effects such as wind resistance ( e. g. drag ) were recorded by Aristotle, Leonardo da Vinci and Galileo Galilei, very little effort was made to develop a rigorous quantitative theory of air flow prior to the 17th century.

Later he claimed to be the discoverer of the moons, which led to a dispute with the true discoverer, Galileo Galilei.

* 1612 – Galileo Galilei becomes the first astronomer to observe the planet Neptune, although he mistakenly catalogued it as a fixed star.

Music and Science in the Age of Galileo Galilei ), arguably one of the most influential empiricists in history.

* 1564 – Galileo Galilei, Italian astronomer and physicist ( d. 1642 )

* 1633 – Galileo Galilei arrives in Rome for his trial before the Inquisition.

The Galilean moons are the four moons of Jupiter discovered by Galileo Galilei in January 1610.

Galileo Galilei, the discoverer of the four Galilean moons

As a result of improvements Galileo Galilei made to the telescope, with a magnifying capability of 20 ×, he was able to see celestial bodies more distinctly than was ever possible before.

Actual proof of the Milky Way consisting of many stars came in 1610 when the Italian astronomer Galileo Galilei used a telescope to study the Milky Way and discovered that it is composed of a huge number of faint stars.

The € 20 billion project is named after the Italian astronomer Galileo Galilei.

Named after the Renaissance astronomer Galileo Galilei, it was launched on October 18, 1989, by the Space Shuttle Atlantis on the STS-34 mission.

* 1610: Galileo Galilei discovers the moons of Jupiter.

These works also influenced contemporary Italian scientist Galileo Galilei and provided one of the foundations for Englishman Isaac Newton's theory of universal gravitation.

It remained the mainstream scientific paradigm in Europe until the time of Galileo Galilei and Isaac Newton.

Galileo Galilei ( 1564 – 1642 )

The Italian mathematician, astronomer, and physicist Galileo Galilei ( 1564 – 1642 ) was the central figure in the Scientific Revolution and famous for his support for Copernianism, his astronomical discoveries, and his improvement of the telescope.

Additionally, he did fundamental work in the field of optics, invented an improved version of the refracting telescope ( the Keplerian Telescope ), and mentioned the telescopic discoveries of his contemporary Galileo Galilei.

* 1633 – The Holy Office in Rome forces Galileo Galilei to recant his view that the Sun, not the Earth, is the center of the Universe.

* 1610 – Galileo Galilei makes his first observation of the four Galilean moons: Ganymede, Callisto, Io and Europa, although he is not able distinguish the last two until the following day.

In 1612, Galileo Galilei proposed that with sufficiently accurate knowledge of the orbits of the moons of Jupiter one could use their positions as a universal clock and this would make possible the determination of longitude, but the practical problems of the method he devised were severe and it was never used at sea.

Two central figures in the early modern age are Galileo Galilei and Isaac Newton.

Galileo ’ s discovery showed the importance of the telescope as a tool for astronomers by proving that there were objects in space that cannot be seen by the naked eye.

On January 7, 1610, Galileo wrote a letter containing the first mention of Jupiter ’ s moons.

Galileo ’ s discovery proved the importance of the telescope as a tool for astronomers by showing that there were objects in space to be discovered that until then had remained unseen by the naked eye.

Galileo, seeking patronage from his now-wealthy former student and his powerful family, used the discovery of Jupiter ’ s moons to gain it.

On February 13, 1610, Galileo wrote to the Grand Duke ’ s secretary:

On March 12, 1610, Galileo wrote his dedicatory letter to the Duke of Tuscany, and the next day sent a copy to the Grand Duke, hoping to obtain the Grand Duke ’ s support as quickly as possible.

When Galileo was viewed as a private-sector development with public-sector financial participation, European Commission program managers sought Chinese participation in pursuit of Chinese cash in the short term and privileged access to China ’ s market for positioning and timing applications in the longer term.

However, due to security and technology-independence policy from European Commission, China was, in effect, dis-invited from Galileo and without a return of its monetary investment, a decision that was reinforced by China ’ s move to build its own global system, called Beidou / Compass.

At the Munich Satellite Navigation Summit on March 10, a Chinese government official asked the European Commission why it no longer wanted to work with China, and when China ’ s cash investment in Galileo would be returned.

* Tommaso Campanella ’ s book In Defence of Galileo is written.

He was able to use his new analytical method to replace that of Aristotle, and he was able to use his method to tweak and update Galileo ’ s experimental method.

The re-creation of Galileo ’ s method has never been significantly changed and in its substance, scientists use it today.

Theoretical reduction is the process by which one theory is absorbed into another ; for example, both Kepler's laws of the motion of the planets and Galileo ’ s theories of motion worked out for terrestrial objects are reducible to Newtonian theories of mechanics, because all the explanatory power of the former are contained within the latter.

Gersonides was also the earliest known mathematician to have used the technique of mathematical induction in a systematic and self-conscious fashion and anticipated Galileo ’ s error theory.

On October 21, 2011 two Galileo IOV-1 & IOV-2 satellites were launched using a Soyuz-ST rocket, in the " first Russian Soyuz vehicle ever launched from Europe ’ s Spaceport in French Guiana.

Galileo ’ s best telescope magnified objects about 30 times.

Galileo ’ s experimentalism did not involve a large random sample of trials of objects falling from a wide range of randomly selected heights under varying wind conditions, and so on.

Galileo ’ s view continued to be subjected to doubt, however, and the Aristotelian view was not finally rejected until half a century later, with the invention of the air pump.

One might call it a critical case, for if Galileo ’ s thesis held for these materials, it could be expected to be valid for all or a large range of materials.

His work, and the work of many others, however, may still have been influenced by the Holy Office ’ s treatment of his contemporary Galileo Galilei.

For Galileo ’ s son of the same name, see Vincenzo Gamba.

This jump in observational power — comparable to the step in sensitivity from the unaided eye to Galileo ’ s first telescope — will reveal vast numbers of new objects and allow the creation of far more complete inventories of rare and exotic objects in the southern sky.

At the time, Travelport included the Orbitz travel reservation website used by consumers, the Galileo computer reservations system used by airlines and thousands of travel agents, Gulliver ’ s Travels and Associates wholesale travel business, and numerous other travel related software brands and solutions.