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.

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.

The photographs taken by Voyager 1 showed Metis only as a dot, and hence knowledge about Metis was very limited until the arrival of the Galileo spacecraft.

This led to a dispute with Galileo, who showed that Marius provided only one observation as early as Galileo's, and it matched Galileo's diagram for the same date, as published in 1610.

Dust measurements by Galileo showed that these dust streams originate from Io, but the exact mechanism for how these form, whether from Io's volcanic activity or material removed from the surface, is unknown.

Starting with his first use of the telescope for astronomical observations in 1610, Galileo Galilei provided support for the Copernican system by observing the phases of Venus and the moons of Jupiter ( which showed that the apparently anomalous orbit of the Moon in Copernicus ' theory was not unique ).

The famous story in which Galileo is said to have dropped weights from the Leaning Tower of Pisa is apocryphal, but he did find that the path of a projectile is a parabola, and he is credited with conclusions foreshadowing Newton's laws of motion ( such as discovering the property of inertia ).

Earlier, in 1638, Galileo had tried to solve a similar problem for the path of the fastest descent from a point to a wall in his Two New Sciences.

Aside from several letters, little is known of Torricelli's activities in the years between 1632 and 1641, when Castelli sent Torricelli's monograph of the path of projectiles to Galileo, then a prisoner in his villa at Arcetri.

Their most bitter dispute concerned finding the equation for the path followed by a particle from one point to another in the shortest time, if the particle is acted upon by gravity alone, a problem originally discussed by Galileo.

File: Justus Sustermans-Portrait of Galileo Galilei, 1636. jpg | Galileo Galilei ( 1564-1642 ): discovered the uniform acceleration rate of falling bodies, improved on the refracting telescope, discovered the four largest moons of Jupiter, described projectile motion and the concept of weight ; known for championing of the Copernican theory of heliocentricism against Church opposition.

The ideal case of motion of a projectile in a uniform gravitational field, in the absence of other forces ( such as air drag ), was first investigated by Galileo Galilei.

Sarpi wrote on projectile motion in the period 1578 – 84, in the tradition of Niccolò Fontana Tartaglia ; and then again in reporting on Guidobaldo del Monte's ideas in 1592, possibly by then having met Galileo Galilei.

In his experimental thinking, Galileo reasoned as follows: if two objects with the same weight are released from the same height at the same time, they will hit the ground simultaneously, having fallen at the same speed.

In his Two New Sciences ( 1638 ), Galileo says that a hanging cord is an approximate parabola, and he correctly observes that this approximation improves as the curvature gets smaller and is almost exact when the elevation is less than 45 °.

When Galileo later complained of rumors to the effect that he had been forced to abjure and do penance, Bellarmine wrote out a certificate denying the rumors, stating that Galileo had merely been notified of the decree and informed that, as a consequence of it, the Copernican doctrine could not be " defended or held ".

In particular, Galileo ensured that the vat of water was large enough to provide a uniform jet of water.

Galileo formulated these concepts in his description of uniform motion.

Galileo offered a conjecture in his 1632 Dialogue that the apparent linear acceleration of a stone falling from a tower was the result of two uniform circular motions acting in combination – the daily rotation of Earth, and a second uniform circular motion belonging to the stone and acquired from being carried along by the tower.

Galileo says that he true and real motion of the stone is never accelerated at all, but is always equable and uniform ....

Marcus Townend, writing in the Daily Mail, described Galileo as the best horse in Europe and praised his " determination " and " lightning acceleration.

A few minutes after the impact fireball was detected, Galileo measured renewed heating, probably due to ejected material falling back onto the planet.

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.

Galileo thermometers are used to measure indoor air temperature, due to their limited measurement range.

Italian physicist Galileo Galilei ( 1564-1642 ), a champion of the Copernican model of the universe and an enormously influential figure in the history of kinematics and classical mechanicsThe foundation of modern dynamics was set out in Galileo's book Dialogo sopra i due massimi sistemi del mondo ( Dialogue on the two main world systems ) where the notion of inertia was implicit and used.

While not attributing magnetism to attraction among the stars, Gilbert pointed out the motion of the skies was due to earth's rotation, and not the rotation of the spheres, 20 years before Galileo ( but 57 years after Copernicus who stated it openly in his work " De revolutionibus orbium coelestium " published in 1543 ) ( see external reference below ).

His description of the center stars as different from a comets head in that they were a " rectangle " may have been an early description of the Trapezium Cluster ( The first detection of three of the four stars of this cluster is credited to Galileo Galilei in a February 4, 1617 although he did not notice the surrounding nebula — possibly due to the narrow field of vision of his early telescope.

* Galileo Galilei-Dialogo sopra i due massimi sistemi del mondo ( Dialogue Concerning the Two Chief World Systems )

The Dialogue Concerning the Two Chief World Systems ( Dialogo sopra i due massimi sistemi del mondo ) was a 1632 Italian language book by Galileo Galilei comparing the Copernican system with the traditional Ptolemaic system.

Galileo Galilei: Discorsi e dimostrazioni matematiche intorno à due nuove scienze ( 1638 )

Alternating current had first developed in Europe due to the work of Guillaume Duchenne ( 1850s ), Ganz Works ( 1870s ), Sebastian Ziani de Ferranti ( 1880s ), Lucien Gaulard, and Galileo Ferraris.

* The final book of the now-blind Galileo, Discorsi e dimostrazioni matematiche, intorno à due nuove scienze is published in Leiden, dealing with the strength of materials and the motion of objects.

The telescope also played a role in relaying data from the NASA Galileo mission to Jupiter that required radio-telescope support due to the use of its backup telemetry subsystem as the principal means to relay science data.

Several consumer organizations, as well as Orbitz's primary competitors at the time ( Expedia, Sabre, Travelocity, Galileo ) spent significant amounts of money lobbying the United States Department of Transportation to block the project from the outset, and some 23 state attorneys general also voiced concerns due to the complaints of local competitors.

However, in that observation, Galileo could not separate Io and Europa due to the low power of his telescope, so the two were recorded as a single point of light.

In the " Galileo " episode, Sherman travels alone, due to Mr. Peabody being sick.

Guidobaldo became a staunch friend of Galileo and helped him again in 1592, when he had to apply to the chair of mathematics at the University of Padua, due to the hatred and machinations of Giovanni de ' Medici, a son of Cosimo I de ' Medici, against Galileo.

Although opposed by Copernicus and Kepler ( with Galileo agnostic ), by the middle of the 17th century this became widely accepted, partly due to the support of René Descartes.

He also developed the principles of equilibrium states and centers of gravity, ideas that would influence the Islamic scholars, Galileo, and Newton.

Galileo soon became known through his invention of a hydrostatic balance and his treatise on the center of gravity of solid bodies.

* 1589 – Galileo Galilei describes a hydrostatic balance for measuring specific gravity.

Galileo Galilei ’ s rejection of Aristotle ’ s law of gravity was based on a case study selected by information-oriented sampling and not random sampling.

Galileo required a triple gravity assist – from Venus, Earth, and then Earth again – to propel it from the inner part of the solar system to Jupiter in the outer system.

The gal is named after Galileo Galilei, a physicist who made the first measurements of the Earth's gravity.

The ideas from this research have had major impact on subsequent solar system exploration ; the Galileo ( Jupiter satellite tour ) mission and the Cassini ( Saturn satellite tour ) were made possible by the gravity assist method.

And I guess one of the reasons we got here today was because of a gentleman named Galileo, a long time ago, who made a rather significant discovery about falling objects in gravity fields.