Galileo Galilei

Galileo Galilei (Italian: [ɡaliˈlɛːo ɡaliˈlɛi]; 15 February 1564 – 8 January 1642) was an Italian astronomer, physicist and engineer, sometimes described as a polymath. Galileo has been called the “father of observational astronomy”, the “father of modern physics”, the “father of the scientific method”, and the “father of modern science”.

Galileo studied speed and velocity, gravity and free fall, the principle of relativity, inertia, projectile motion and also worked in applied science and technology, describing the properties of pendulums and “hydrostatic balances”, inventing the thermoscope and various military compasses, and using the telescope for scientific observations of celestial objects. His contributions to observational astronomy include the telescopic confirmation of the phases of Venus, the observation of the four largest satellites of Jupiter, the observation of Saturn and the analysis of sunspots.

More info at: Galileo Galilei – Wikipedia

Additional Articles associated with this person's firsts:

Name(s):
      Galileo Galilei
Occupation:
      Astronomer, Physicist, Engineer, and sometimes described as a Polymath
Birth:
      February 15, 1564, Pisa, Italy
Death:
      January 8, 1642, Arcetri


Additional Information:

Moon Map Published by Hevelius

Johannes Hevelius (born Jan Heweliusz) from Gdansk, Poland published a moon map in the Selenographia in 1647. Continue reading

Book of printed star charts

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First Published Ephemeris

Let’s begin with the definition of the word Ephemeris:

Ephemeris is a table or data file giving the calculated positions of a celestial object at regular intervals throughout a period or basically a diary of celestial objects positions.
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Leon Battista Alberti

Leon Battista Alberti (Italian: [leˈom batˈtista alˈbɛrti]; February 18, 1404 – April 25, 1472) was an Italian humanist author, artist, architect, poet, priest, linguist, philosopher and cryptographer; he epitomised the Renaissance Man. Continue reading

Christopher Columbus

Christopher Columbus (c. 1451 – 20 May 1506) was an Italian explorer, navigator, and colonizer. Born in the Republic of Genoa, under the auspices of the Catholic Monarchs of Spain he completed four voyages across the Atlantic Ocean. Continue reading

First Portable star map

Portable star map known as Tunhuang manuscript to astronomers, was made in China circa 940.
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New World added to world map

Juan de la Cosa, a Spanish navigator and geographer, drew the first mapping of New World, showing Spanish discoveries. Continue reading

Digital Chart of the World

The Digital Chart of the World was started in 1992 and released in 2006 was a cooperative effort between cartography organizations in Canada, United States, Australia and Great Britain. Continue reading