Monthly Archives: August 2012

Galileo Galilei and his Telescope

Galileo Galilei and his Telescope

Galileo Galilei showing the Doge of Venice how to use the telescope,Fresco at Villa Andrea Ponti, Varese, 1858 On August 25, 1609, Galileo Galilei publicly demonstrated his newly built telescope for the first time to Venetian lawmakers. Besides its astronomical value Galileo’s telescope was also a profitable sideline for him selling telescopes to merchants who found them useful both at sea and as items of trade. Galileo published his initial telescopic astronomical…
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The Mona Lisa is Missing….!

The Mona Lisa is Missing….!

Leonardo Da Vinci’s Mona Lisa (ca. 1503-1505) On August 21, 1911 during intensive repair and renovation work the Louvre Museum realized that Leonardo Da Vinci’s most famous painting, the Mona Lisa, was stolen. I guess, the Mona Lisa must be the most famous painting in the world. The painting’s title Mona Lisa stems from a description by Giorgio Vasari, who wrote biographies of famous contemporary Renaissance men: “Leonardo undertook to paint, for…
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Robert Fulton and the Steamship Company

Robert Fulton and the Steamship Company

From the invention of a new power source or engine up to a vehicle that applies this power source to move forward sometimes is only a small step. But, to become a commercial success, this step might take even decades. Just think of the oldest type of engine powered by steam. Although the principle of the steam engine was already described by ancient Greek mathematician Heron of Alexandria, it took almost 17…
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David Hilbert’s 23 Problems

David Hilbert’s 23 Problems

On August 8, 1900 David Hilbert, probably the greatest mathematician of his age,  gave a speech at the Paris conference of the International Congress of Mathematicians, at the Sorbonne, where he presented 10 mathematical Problems (out of a list of 23), all unsolved at the time, and several of them were very influential for 20th century mathematics. “Who of us would not be glad to lift the veil behind which the future…
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